Assembly Manual
Piper J-3 Cub · Service Manual
Overview
This document is an assembly manual for the Piper J-3 Cub, detailing the specifications, assembly instructions, and required tools and parts for building the model. It is intended for hobbyists and model builders who are assembling the J-3 Cub model aircraft. The manual provides a comprehensive guide to ensure proper assembly and operation of the model, including safety precautions and warranty information.
- Wingspan: 106 in (2692.5 mm)
- Weight: 14.5–16.5 lb (6.6–7.5 kg)
- Engine options: 1.00–1.80 Four-Stroke or 1.00–1.60 Two-Stroke
- Required tools include rotary tool, pliers, and drill
- Warranty covers defects in materials and workmanship
Document
Source
Originally published by www.astramodel.cz. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Manual
- Pages
- 44
- File size
- 2.8 MB
- Publisher
- www.astramodel.cz
Common. Rarer than 24% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Piper J-3 Cub.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Piper J-3 Cub for sale now
Free — save the J-3 Cub to your watchlist and track it in one place.
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- Supplemental Type CertificateSupplemental Type Certificate
- J-3 Cub BL Instruction ManualMaintenance Manual
- PIPER J3 CUB - 1937- 47Specifications
- Wiring Diagram for RC EquipmentWiring Diagram
- WEIGHT & BALANCE WORK SHEETWeight And Balance
- PIPER J3 CUB CHECKLISTPilot's Operating Handbook
- Pilot's Operating HandbookPilot's Operating Handbook
If you fly the Piper J-3 Cub, you may also be researching these.
In this document
Specifications
The Piper J-3 Cub has a wingspan of 106 inches (2692.5 mm) and a wing area of 1630 square inches (10.52 square dm). The overall length is 68 inches (1727 mm), and the weight ranges from 14.5 to 16.5 pounds (6.6 to 7.5 kg). The engine options include a 1.00 to 1.80 Four-Stroke or a 1.00 to 1.60 Two-Stroke engine, with a displacement of 20 to 26 cc.
Required Tools and Adhesives
The assembly requires various tools including a rotary tool, hobby scissors, pliers, clamps, and a drill with specific drill bits. Adhesives such as Thin CA, Medium CA, and 30-Minute Epoxy are also necessary for assembly.
Safety Precautions
The manual emphasizes that the model is a sophisticated hobby product and not a toy. It must be operated with caution and common sense, particularly around children. The manual contains essential safety instructions to prevent injury or damage during assembly and operation.
Assembly Instructions
The manual provides detailed step-by-step instructions for assembling various components of the Piper J-3 Cub, including the wings, stabilizer, landing gear, and control surfaces. Each section outlines the required parts, tools, and specific assembly steps to ensure proper construction.
Warranty Information
The document includes warranty details, stating that Horizon Hobby, Inc. warrants the product against defects in materials and workmanship at the date of purchase. It outlines the process for warranty claims and the limitations of the warranty.
Safety notes
- Operate in an open area away from traffic and people.
- Avoid operating with low transmitter batteries.
- Read and follow all safety instructions in the manual.
Full document text
Wingspan....................................106.in.(2692.5mm) Wing.Area.........................1630.sq.in.(10.52.sq.dm) Length..............................................68.in.(1727mm) Weight........................ .14.5–16.5.lb.(6.6.kg–7.5.kg) Assembly mAnuAl Piper J-3 Cub Engine................................... .1.00–1.80.Four-Stroke ............................................. 1.00–1.60.Two-Stroke ....................................................20–26cc.Gasoline Motor............................................. E-flite.Power.110 Specifications 2 Table of Contents Using.the.Manual.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Required.Tools.and.Adhesives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 UltraCote.Covering.Colors.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Before.Starting.Assembly.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Radio.and.Power.Systems.Requirements.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Instructions.for.Disposal.of.WEEE.by.Users.in.the.European.Union. . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Warranty.Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Limited.Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Damage.Limits.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Safety.Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Questions,.Assistance,.and.Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Inspection.or.Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Warranty.Inspection.and.Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Non-Warranty.Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Safety,.Precautions,.and.Warnings.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Contents.of.Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Hinging.the.Control.Surfaces.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Landing.Gear.Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Stabilizer.Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Aileron.Servo.Installation.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Radio.Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Engine.Installation.(Glow). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Engine.Installation.(Gas). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Interior.Detail.Installation.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Wing.Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Control.Throws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Recommended.Center.of.Gravity.(CG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Pre-Flight.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Adjusting.the.Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Range.Test.Your.Radio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Building.and.Flying.Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 2007.Official.AMA.National.Model.Aircraft.Safety.Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 3 Using the Manual This.manual.is.divided.into.sections.to.help.make.assembly.easier.to.understand,.and.to.provide.breaks.between.each. major.section..In.addition,.check.boxes.have.been.placed.next.to.each.step.to.keep.track.of.each.step.completed..Steps. with.a.single.box.().are.performed.once,.while.steps.with.two.boxes.(.).indicate.that.the.step.will.require. repeating,.such.as.for.a.right.or.left.wing.panel,.two.servos,.etc..Remember.to.take.your.time.and.follow.the.directions. Required Tools and Adhesives Tools •.Rotary.tool.(Dremel). •.Hobby.scissors •.Pliers. . •.Clamp •.T-pins. . •.Crimping.tool/vice.grips •.Solder. . •.String •.Solder.gun. •.1/4-inch.(6mm).foam •.Tape. . •.Hobby.knife •.Phillips.screwdriver. •.Drill
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•.Felt-tipped.pen. •.Nut.driver:.1/4-inch •.Hex.wrench:.5/64-inch,.3/32-inch,.7/64-inch,.1/8-inch •..Drill.bit:.1/16-inch.(1.5mm),.5/64-inch.(2mm),.5/32-inch.(4mm),.3/16-inch.(4.5mm) Adhesives •.Thin.CA.(PAAPT08). •.Medium.CA.(PAAPT02) •.30-Minute.Epoxy.(HAN8002). •.Formula.560.Canopy.Glue.(PAAPT56) •.CA.Remover/Debonder.(PAAPT16). •.Pacer.Z-42.Threadlock.(PAAPT42) UltraCote Covering Colors •.Cub.Yellow. HANU884 Before Starting Assembly Before.beginning.the.assembly.of.the.Piper.J-3.Cub,.remove.each.part.from.its.bag.for.inspection..Closely.inspect.. the.fuselage,.wing.panels,.rudder,.and.stabilizer.for.damage..If.you.find.any.damaged.or.missing.parts,.contact.the.. place.of.purchase. If.you.find.any.wrinkles.in.the.covering,.use.a.heat.gun.or.sealing.iron.to.remove.them..Use.caution.while.working.around. areas.where.the.colors.overlap.to.prevent.separating.the.colors. HAN100 – Heat Gun HAN150 – Covering Glove HAN101 – Sealing Iron HAN141 – Sealing Iron Sock 4 Radio and Power Systems Requirements •.4-channel.radio.system.(minimum).w/receiver. •.Large.Servo.Arms.(JRPA212).(3.pkgs) •.12-Inch.Servo.Lead.Extension.(JRPA098). •.JR.Charge.Jack.Switch.(JRPA004) •.18-inch.Servo.Lead.Extension.(JRPA099).(4). •.Choke.Rings.(JRPA029.(2) •.Y-harness.(Ailerons).(JSP98020).(Required.when.using.4-channel.radio) •.DS821.Digital.Sport.Hi-Torque.Servo.(JRPS821).(JSP20071).(6).or.equivalent The elevator installation will require: Two.servos.and.mixing.through.the.radio Or Two.servos.and.a.JR®.MatchBox™.(JPA0900).or.a.6".standard.reversing.Y-harness.(EXRA320) Or A.standard.rotation.servo.and.a.reverse.rotation.servo.and.a.standard.Y-harness Recommended JR®, JR SPORT ™ and Spektrum™ Systems •.XP9303. . •.XP7202 •.DX7. . •.XP6102 •.XS600 Recommended Setup–Gas/Glow •.Zenoah ®.20cc.Electronic.Ignition(ZENE20EI),.OR •.38mm.stand-offs.(Zenoah.only).(EVO3307) •.RF.choke.ring.(gas.only).(JRPA029) •.Saito ™.180.AAC.with.Muffler.(SAIE180.or.SAIE180GK) •.Muffler.Right.Angle.Adapter.(Saito.only).(SAI120S140) •.16x6.Propeller •.Propeller.nut Recommended Setup–Electric •.E-flite ®.Power.110.BL.Outrunner.Motor.(EFLM4110A) •.Castle.Creations.85A.ESC.(CSEPHX85HV) •.2.Thunder.Power.8–9S.Li-Po.Battery.Packs •.Propeller.((APC17010E).or.(APC18080E) •.Propeller.nut FS One With.FS.One ™.you.get.more.than.photorealistic.fields,.gorgeous.. skies.and.realistic-looking.aircraft..You.get.incredibly.advanced.. aerodynamic.modeling.that.simulates.every.possible.aspect.. of.real-world.flight. Zenoah 20cc ZENE20EI Saito 1.80 Golden Knight AAC SAIE180GK JR XP6102 JR XP9303 Spektrum DX7 HANS2000 E-Flite Power 110 EFLM4110A 5 Warranty Period Exclusive.Warranty-.Horizon.Hobby,.Inc.,.(Horizon).warranties.that.the.Products.purchased.(the."Product").will.be.free. from.defects.in.materials.and.workmanship.at.the.date.of.purchase.by.the.Purchaser. Limited Warranty (a).This.warranty.is.limited.to.the.original.Purchaser.("Purchaser").and.is.not.transferable..REPAIR.OR.REPLACEMENT. AS.PROVIDED.UNDER.THIS.WARRANTY.IS.THE.EXCLUSIVE.REMEDY.OF.THE.PURCHASER..This.warranty.covers.only. those.Products.purchased.from.an.authorized.Horizon.dealer..Third.party.transactions.are.not.covered.by.this.warranty.. Proof.of.purchase.is.required.for.warranty.claims..Further,.Horizon.reserves.the.right.to.change.or.modify.this.warranty. without.notice.and.disclaims.all.other.warranties,.express.or.implied.. (b).Limitations-.HORIZON.MAKES.NO.WARRANTY.OR.REPRESENTATION,.EXPRESS.OR.IMPLIED,.ABOUT.NON- INFRINGEMENT,.MERCHANTABILITY.OR.FITNESS.FOR.A.PARTICULAR.PURPOSE.OF.THE.PRODUCT..THE.. PURCHASER.ACKNOWLEDGES.THAT.THEY.ALONE.HAVE.DETERMINED.THAT.THE.PRODUCT.WILL.SUITABLY.MEET. THE.REQUIREMENTS.OF.THE.PURCHASER’S.INTENDED.USE.. (c).Purchaser.Remedy-.Horizon's.sole.obligation.hereunder.shall.be.that.Horizon.will,.at.its.option,.(i).repair.or.(ii). replace,.any.Product.determined.by.Horizon.to.be.defective..In.the.event.of.a.defect,.these.are.the.Purchaser's.exclusive. remedies..Horizon.reserves.the.right.to.inspect.any.and.all.equipment.involved.in.a.warranty.claim..Repair.or.replacement. decisions.are.at.the.sole.discretion.of.Horizon..This.warranty.does.not.cover.cosmetic.damage.or.damage.due.to.acts.of. God,.accident,.misuse,.abuse,.negligence,.commercial.use,.or.modification.of.or.to.any.part.of.the.Product..This.warranty. does.not.cover.damage.due.to.improper.installation,.operation,.maintenance,.or.attempted.repair.by.anyone.other.than. Horizon..Return.of.any.goods.by.Purchaser.must.be.approved.in.writing.by.Horizon.before.shipment. Damage Limits HORIZON.SHALL.NOT.BE.LIABLE.FOR.SPECIAL,.INDIRECT.OR.CONSEQUENTIAL.DAMAGES,.LOSS.OF.PROFITS.OR. PRODUCTION.OR.COMMERCIAL.LOSS.IN.ANY.WAY.CONNECTED.WITH.THE.PRODUCT,.WHETHER.SUCH.CLAIM. IS.BASED.IN.CONTRACT,.WARRANTY,.NEGLIGENCE,.OR.STRICT.LIABILITY..Further,.in.no.event.shall.the.liability.of. Horizon.exceed.the.individual.price.of.the.Product.on.which.liability.is.asserted..As.Horizon.has.no.control.over.use,. setup,.final.assembly,.modification.or.misuse,.no.liability.shall.be.assumed.nor.accepted.for.any.resulting.damage.or. injury..By.the.act.of.use,.setup.or.assembly,.the.user.accepts.all.resulting.liability. If.you.as.the.Purchaser.or.user.are.not.prepared.to.accept.the.liability.associated.with.the.use.of.this.Product,.you.are. advised.to.return.this.Product.immediately.in.new.and.unused.condition.to.the.place.of.purchase. Law:.These.Terms.are.governed.by.Illinois.law.(without.regard.to.conflict.of.law.principals). Safety Precautions This.is.a.sophisticated.hobby.Product.and.not.a.toy..It.must.be.operated.with.caution.and.common.sense.and.requires. some.basic.mechanical.ability..Failure.to.operate.this.Product.in.a.safe.and.responsible.manner.could.result.in.injury.. or.damage.to.the.Product.or.other.property..This.Product.is.not.intended.for.use.by.children.without.direct.adult. supervision..The.Product.manual.contains.instructions.for.safety,.operation.and.maintenance..It.is.essential.to.read.. and.follow.all.the.instructions.and.warnings.in.the.manual,.prior.to.assembly,.setup.or.use,.in.order.to.operate.correctly. and.avoid.damage.or.injury. 6 Questions, Assistance, and Repairs Your.local.hobby.store.and/or.place.of.purchase.cannot.provide.warranty.support.or.repair..Once.assembly,.setup.or. use.of.the.Product.has.been.started,.you.must.contact.Horizon.directly..This.will.enable.Horizon.to.better.answer.your. questions.and.service.you.in.the.event.that.you.may.need.any.assistance..For.questions.or.assistance,.please.direct.your. email.to.productsupport@horizonhobby.com,.or.call.877.504.0233.toll.free.to.speak.to.a.service.technician. Inspection or Repairs If.this.Product.needs.to.be.inspected.or.repaired,.please.call.for.a.Return.Merchandise.Authorization.(RMA)..Pack.. the.Product.securely.using.a.shipping.carton..Please.note.that.original.boxes.may.be.included,.but.are.not.designed.. to.withstand.the.rigors.of.shipping.without.additional.protection..Ship.via.a.carrier.that.provides.tracking.and.insurance. for.lost.or.damaged.parcels,.as.Horizon is not responsible for merchandise until it arrives and is accepted at our facility..A.Service.Repair.Request.is.available.at.www.horizonhobby.com.on.the.“Support”.tab..If.you.do.not.. have.internet.access,.please.include.a.letter.with.your.complete.name,.street.address,.email.address.and.phone.number. where.you.can.be.reached.during.business.days,.your.RMA.number,.a.list.of.the.included.items,.method.of.payment.. for.any.non-warranty.expenses.and.a.brief.summary.of.the.problem..Your.original.sales.receipt.must.also.be.included.. for.warranty.consideration..Be.sure.your.name,.address,.and.RMA.number.are.clearly.written.on.the.outside.of.the. shipping.carton. Warranty Inspection and Repairs To receive warranty service, you must include your original sales receipt.verifying.the.proof-of-purchase. date..Provided.warranty.conditions.have.been.met,.your.Product.will.be.repaired.or.replaced.free.of.charge..Repair.or. replacement.decisions.are.at.the.sole.discretion.of.Horizon.Hobby. Non-Warranty Repairs Should your repair not be covered by warranty the repair will be completed and payment will be required without notification or estimate of the expense unless the expense exceeds 50% of the retail purchase cost..By.submitting.the.item.for.repair.you.are.agreeing.to.payment.of.the.repair.without.notification..Repair. estimates.are.available.upon.request..You.must.include.this.request.with.your.repair..Non-warranty.repair.estimates.will. be.billed.a.minimum.of.½.hour.of.labor..In.addition.you.will.be.billed.for.return.freight..Please.advise.us.of.your.preferred. method.of.payment..Horizon.accepts.money.orders.and.cashiers.checks,.as.well.as.Visa,.MasterCard,.American.Express,. and.Discover.cards..If.you.choose.to.pay.by.credit.card,.please.include.your.credit.card.number.and.expiration.date..Any. repair.left.unpaid.or.unclaimed.after.90.days.will.be.considered.abandoned.and.will.be.disposed.of.accordingly..Please note: non-warranty repair is only available on electronics and model engines. Electronics.and.engines.requiring.inspection.or.repair.should.be.shipped.to.the.following.address: Horizon.Service.Center. 4105.Fieldstone.Road. Champaign,.Illinois.61822 All.other.Products.requiring.warranty.inspection.or.repair.should.be.shipped.to.the.following.address: Horizon.Product.Support. 4105.Fieldstone.Road. Champaign,.Illinois.61822 Please call 877-504-0233 with any questions or concerns regarding this product or warranty. 7 Safety, Precautions, and Warnings This.model.is.controlled.by.a.radio.signal.that.is.subject.to.interference.from.many.sources.outside.your.control..This. interference.can.cause.momentary.loss.of.control.so.it.is.advisable.to.always.keep.a.safe.distance.in.all.directions.around. your.model,.as.this.margin.will.help.to.avoid.collisions.or.injury. •.Always.operate.your.model.in.an.open.area.away.from.cars,.traffic,.or.people. •.Avoid.operating.your.model.in.the.street.where.injury.or.damage.can.occur. •.Never.operate.the.model.into.the.street.or.populated.areas.for.any.reason. •.Never.operate.your.model.with.low.transmitter.batteries. •..Carefully.follow.the.directions.and.warnings.for.this.and.any.optional.support.equipment.(chargers,.rechargeable. battery.packs,.etc.).that.you.use. •.Keep.all.chemicals,.small.parts.and.anything.electrical.out.of.the.reach.of.children. •..Moisture.causes.damage.to.electronics..Avoid.water.exposure.to.all.equipment.not.specifically.designed.and.protected. for.this.purpose. Contents of Kit Replacement Parts A.. HAN4551. 25%.J-3.Cub.Fuselage B.. HAN4552. 25%.J-3.Cub.Left.Wing.w/Aileron C.. HAN4553. 25%.J-3.Cub.Right.Wing.w/Aileron D.. HAN4554. 25%.J-3.Cub.Stab.and.Elevator.Set E.. HAN4555. 25%.J-3.Cub.Rudder F.. HAN4556. 25%.J-3.Cub.Cowl G.. HAN4559. 25%.J-3.Cub.Window.Set H.. HAN4562. 25%.J-3.Cub.Wing.Strut.Set Items Not Shown HAN1987. 25%.J-3.Cub.17oz.Tank HAN2033. Hangar.9.Engine.Mount HAN4557. 25%.J-3.Cub.Anodized.Wing.Tube HAN4558. 25%.J-3.Cub.Stab.Tube HAN4560. 25%.J-3.Cub.Landing.Gear.w/o.Wheels HAN4561. 25%.J-3.Cub.4.1/4-inch.Wheels.(pr) HAN4563. 25%.J-3.Cub.Wing.Strut.Pins.w/Keepers HAN4564. 25%.J-3.Cub.Tailwheel.Assembly HAN4565. 25%.J-3.Cub.Decals HAN4566. 25%.J-3.Cub.Pilot.Figure HAN4567. 25%.J-3.Cub.Dash.Panel HAN4568. 25%.J-3.Cub.Pushrod.Set HAN4569. Side.and.Top.Window.Set HAN4570. 25%.J-3.Cub.Tail.Wire.Set HAN4571. 25%.J-3.Cub.Interior.Seat.Set A B D C E F G H 8 Required Parts •.Stabilizer.(2). •.Elevator.(2) •.Wing.(left.and.right). •.Rudder •.Aileron.(left.and.right). •.Fuselage •.CA.hinge.(19) Required Tools and Adhesives •.Rotary.tool. •.T-pins •.Thin.CA •.Drill.bit:.1/16-inch.(1.5mm) ...Step 1 Use.a.rotary.tool.and.1/16-inch.(1.5mm).drill.bit.to.drill.a. hole.in.the.center.of.each.of.the.three.hinge.slots.in.both. of.the.stabilizers. Note:.While.your.rotary.tool.is.out,. drill.the.holes.in.the.elevators,.ailerons,. wing,.rudder.and.fin.as.well. ...Step 2 Place.a.T-pin.in.the.center.of.three.CA.hinges. ...Step 3 Position.the.hinge.in.the.stabilizer..The.slot.in.the.hinge. will.align.with.the.hole.drilled.in.the.stabilizer. ...Step 4 Slide.the.hinges.in.the.elevator..Position.the.stabilizer. and.elevator.so.there.is.as.little.gap.between.the.two.as. possible.without.restricting.movement..Align.the.tips.of. the.stabilizer.and.elevator. Hinging the Control Surfaces 9 ...Step 5 Apply.thin.CA.to.the.top.and.bottom.of.each.of.the.three. hinges..Make.sure.to.saturate.each.hinge.so.there.is. enough.CA.to.wick.into.the.hinge.and.bond.with.the. surrounding.wood. Note:.Do.not.use.CA.accelerator.on.the. hinges..The.CA.must.be.allowed.to.wick. fully.into.the.hinge.to.provide.the.best.bond. between.the.hinge.and.the.surrounding.wood. ...Step 6 Allow.the.CA.plenty.of.time.to.cure..Once.cured,.pull.on. the.elevator.and.stabilizer.to.make.sure.the.hinges.are. fully.glued.into.position. ...Step 7 Flex.the.elevator.up.and.down.a.number.of.times.to.break. in.the.hinges.. Hinging the Control Surfaces 10 ..Step 8 Repeat.Steps.1.through.8,.and.using.five.hinges.per. aileron,.hinge.the.ailerons.to.the.wing.panels. Required Parts •.Fuselage. •.Wheel.assembly.(2) •.Wheel.axle.(2). •.Cross.brace •.Wing.strut.tab.(2). •.4-40.locknut.(6) •.4-40.setscrew.(2) •.Assembled.shock.strut.(2) •.Wheel.collar.w/setscrew.(2) •.Main.gear.strut.(right.and.left) •.4-40.x.1/2-inch.socket.head.screw.(2) •.4-40.x.5/8-inch.socket.head.screw.(4) •.8-32.x.3/4-inch.socket.head.screw.(8) •.#2.x.5/8-inch.sheet.metal.screw.(8) Required Tools and Adhesives •.Threadlock •.Hex.wrench.(included.in.kit.for.wheel.collars) •.Phillips.screwdriver.(#1) •.Hex.wrench:.3/32-inch,.1/8-inch •.Nut.driver:.1/4-inch Note:.Be.sure.the.6-32.bolts.that. secure.the.landing.gear.legs.to.the. landing.brackets.are.snug.to.minimize. vibration,.but.allow.for.movement .Step 1 Locate.the.left.and.right.main.gear.struts.and.the.wing. strut.tab..Attach.the.front.of.the.landing.gear.using.two.. 8-32.x.3/4-inch.socket.head.screws..The.rear.is.also. secured.to.the.fuselage.using.four.8-32.x.3/4-inch.socket. head.screws,.but.the.wing.strut.tabs.are.positioned. between.the.landing.gear.and.fuselage. Note:.Use.threadlock.on.the.. 8-32.x.3/4-inch.socket.head.screws.. to.prevent.them.from.vibrating.loose.in.flight. Landing Gear Installation .Step 9 Repeat.Steps.1.through.8,.and.using.three.hinges,.hinge. the.rudder.to.the.fin/fuselage. Hinging the Control Surfaces 11 Note:.In.Step.2,.leave.the.screws. loose.in.the.gear.until.all.the.struts. and.cross.brace.are.in.position. .Step 2 Use.two.4-40.x.5/8-inch.socket.head.screws.and.two.. 4-40.locknuts.to.attach.the.shock.struts.to.the.main. landing.gear.struts..The.cross.brace.also.uses.two.. 4-40.x.5/8-inch.socket.head.screws.and.4-40.locknuts.. to.attach.to.the.gear.near.the.fuselage..Last,.use.two.. 4-40.x.1/2-inch.socket.head.screws.and.two.4-40. locknuts.to.attach.the.shock.struts.to.the.cross.brace. ..Step 3 Locate.the.main.wheel.and.remove.the.front.and.rear.hubs. from.the.wheel. ..Step 4 Secure.the.wheel.collar.to.the.axle.by.tightening.. the.setscrew.onto.the.flat.of.the.axle.with.the.included.. hex.wrench. Note:.Use.threadlock.on.the.setscrew.to. prevent.it.from.vibrating.loose.in.flight. ..Step 5 Slide.the.rear.hub.into.the.wheel..The.rear.hub.is. identified.as.the.one.without.the.holes.going.through.the. hub.for.the.screws..Slide.the.longer.portion.of.the.axle. into.the.hub,.then.slide.the.front.hub.into.the.wheel. Note:.The.photo.does not.show. the.wheel.to.illustrate.how.the.wheel. collar.is.placed.between.the.two.wheel. hubs.to.hide.the.wheel.collar. Landing Gear Installation 12 ..Step 6 The.front.and.rear.hubs.will.key.together.when.. installed.properly..Once.installed,.use.four.#2.x.5/8-inch. sheet.metal.screws.to.secure.the.hubs.together..Check.. the.rotation.of.the.wheel.when.installing.the.screws... If.the.wheel.does.not.rotate,.loosen.the.screws.slightly. until.it.does. ..Step 7 Use.a.4-40.setscrew.to.secure.the.axle.to.the.main.landing. gear. Note:.Use.threadlock.on.the.setscrew.to. prevent.them.from.vibrating.loose.in.flight. ..Step 8 To.complete.the.wheel.installation,.snap.the.hub.cap.. onto.the.wheel. ..Step 9 Repeat.Steps.3.through.8.to.install.the.remaining.wheel. Landing Gear Installation 13 Required Parts •.Fuselage.assembly. •.Stabilizer/elevator.(2) •.6.3/8-inch.(162mm).joiner. •.#6.washer.(4) •.Tail.wheel.assembly. •.2-56.nut.(4) •.4-40.locknut.(3) •.Large.strut.support.bracket.(2) •.Small.strut.support.bracket.(2) •.#6.x.5/8-inch.sheet.metal.screws.(2) •.4-40.x.5/8-inch.socket.head.screw.(3) •.Support.rod.w/clevis,.10-inch.(254mm).(2) •.Support.rod.w/clevis,.9.1/2-inch.(241mm).(2) •.6-32.x.3/4-inch.socket.head.screw.(4) Required Tools and Adhesives •.Threadlock •.Hex.wrench:.3/32-inch,.7/64-inch .Step 1 Slide.the.6.3/8-inch.(162mm).joiner.into.the.forward.hole. in.the.stabilizer. .Step 2 Slide.the.stabilizer.into.the.slot.in.the.fuselage..Use.two.. 6-32.x.3/4-inch.socket.head.screws.and.two.#6.washers. to.secure.the.stabilizer. Note:.Leave.the.screws.loose.until. instructed.to.tighten.them. .Step 3 Slide.the.remaining.stabilizer.into.the.slot.in.the.fuselage.. The.tubes.from.the.first.stabilizer.will.key.into.the.second. stabilizer..Use.two.6-32.x.3/4-inch.socket.head.screws. and.two.#6.washers.to.secure.the.stabilizer..Once.all.four. screws.have.been.started,.tighten.each.one,.but.avoid. crushing.the.underlying.wood. Note:.Use.threadlock.on.the.four.6-32.screws. to.prevent.them.from.vibrating.loose.in.flight. Stabilizer Installation 14 .Step 4 Attach.the.tail.wheel.assembly.to.the.fuselage.using.two. #6.x.5/8-inch.sheet.metal.screws..The.forward.screw. goes.through.the.gear.and.into.the.fuselage,.while.the.rear. screw.goes.through.the.two.large.strut.support.brackets,. then.through.the.gear.and.into.the.fuselage. .Step 5 Attach.the.two.small.strut.support.brackets.to.the.fin.. using.a.4-40.x.5/8-inch.socket.head.screw.and.a.4-40. locknut..There.will.be.a.bracket.on.the.right.and.left.of.. the.fin.when.complete. .Step 6 Remove.the.clevis.from.each.of.the.support.rods..Use.a. hobby.knife.to.clean.the.paint.from.the.threads..Thread.a. 2-56.nut.onto.the.threads,.then.replace.the.clevis. .Step 7 Use.a.4-40.x.5/8-inch.socket.head.screw.and.4-40. locknut.to.attach.the.support.rods.to.the.stabilizer..The. longer.10-inch.(254mm).rod.attaches.to.the.top.of.the. stabilizer,.while.the.shorter.9.1/2-inch.(241mm).rod. attaches.to.the.bottom.of.the.stabilizer. Stabilizer Installation 15 .Step 8 Clip.the.clevis.to.the.strut.support.bracket..It.will.be. necessary.to.adjust.the.position.of.the.clevis.to.ensure. the.support.rods.are.not.causing.any.twists.between.the. fuselage,.stabilizer.and.fin..Tighten.the.nuts.against.the. clevises.once.all.adjustments.have.been.made. Note:.Use.threadlock.on.the.nuts.and.clevises. to.prevent.them.from.vibrating.loose.in.flight. Stabilizer Installation 16 Required Parts •.4-40.metal.clevis.(4). •.4-40.nut.(4) •.Wing.panel.(right.and.left) •.Servo.hatch.cover.(right.and.left) •.2-56.x.1-inch.machine.screw.(6) •.4.3/4-inch.(120mm).pushrod.(2) •.#2.x.1/2-inch.sheet.metal.screw.(8) •.Nylon.control.horn.w/backplate.(2) •..3/4.x.11/16.x.7/16-inch.(19.x.17.x.11mm). servo.mounting.blocks.(4) •.Safety.fuel.tubing.(4) Required Tools and Adhesives •.Drill. •.30-minute.epoxy •.Servo.(2). •.Long.servo.arm •.String. •.Weight •.Phillips.screwdriver. •.Threadlock •.Felt-tipped.pen. •.Tape •.Thin.CA •.18-inch.(457mm).servo.extension.(2) •.Drill.bit:.1/16-inch.(1.5mm),.5/64-inch.(2mm) ..Step 1 Locate.the.servo.hatch.cover.and.test.fit.it.into.position,. There.is.a.right.and.left.cover,.so.make.sure.when.the. hatch.is.positioned,.the.slot.for.the.servo.arm.lines.up. ..Step 2 Install.a.long.servo.arm.onto.the.aileron.servo..Remove. the.excess.arms.that.will.not.extend.out.from.the.wing.. Position.the.servo.so.the.arm.is.centered.in.the.opening. for.the.arm..Use.a.felt-tipped.pen.to.mark.the.location.of. the.servo.on.the.cover. Note:.The.mounting.tabs.for.the.servo. must.not.extend.beyond.the.servo.cover.. If.so,.reposition.the.servo.before.marking. its.location.on.the.servo.cover. ..Step 3 Locate.two.of.the.3/4.x.11/16.x.7/16-inch.(19.x.17.x. 11mm).servo.mounting.blocks..Position.the.blocks.so. they.align.with.the.marks.made.in.the.previous.step..Use. 30-minute.epoxy.to.glue.the.blocks.to.the.cover..Allow.the. epoxy.to.fully.cure.before.proceeding. Aileron Servo Installation 17 .Step 4 Repeat.steps.1.through.3.to.prepare.the.remaining.cover. while.the.epoxy.cures. ..Step 5 Position.the.servo.between.the.block.and.with.a.small. space.between.the.servo.and.cover..Use.a.felt-tipped.pen. to.mark.the.locations.for.the.servo.mounting.screws.onto. the.blocks. ..Step 6 Drill.the.marked.locations.using.a.drill.and.1/16-inch. (1.5mm).drill.bit..Use.the.hardware.provided.with.the. servo.to.secure.it.to.the.blocks. ..Step 7 Use.string.or.a.commercially.available.connector.to.secure. a.18-inch.(457mm).servo.extension.to.the.servo.lead. ..Step 8 Tie.a.weight.to.a.24-inch.(610mm).piece.of.string..Lower. the.weight.into.the.wing.and.pull.it.out.at.the.opening.for. the.servo.cover. Aileron Servo Installation 18 ..Step 9 Tie.the.string.to.the.end.of.the.servo.extension.and.use.it. to.pull.the.extension.through.the.wing..Use.a.piece.of.tape. to.keep.the.extension.from.falling.back.into.the.fuselage. ..Step 10 Position.the.servo.hatch.cover.and.secure.it.using.four. #2.x.1/2-inch.sheet.metal.screws..After.installing.the. screws,.remove.them.and.apply.a.few.drops.of.thin.CA.to. the.holes.to.harden.the.wood.to.prevent.the.screws.from. vibrating.loose. ..Step 11 Assemble.the.aileron.pushrod.by.sliding.the.safety.. fuel.tubing.onto.two.metal.clevises..Thread.the.two. .metal.clevises.and.two.4-40.nuts.onto.a.4.3/4-inch. (120mm).pushrod. Aileron Servo Installation 19 ..Step 12 Attach.one.end.of.the.linkage.to.the.servo.horn..Remove. the.backplate.from.a.nylon.control.horn.and.attach.the. other.end.of.the.linkage.to.the.horn..Position.the.horn. on.the.aileron.with.the.holes.in.the.horn.aligned.with.the. hinge.line.of.the.aileron..Use.a.felt-tipped.pen.to.mark.the. location.for.the.three.control.horn.mounting.screws. Align holes with hinge line ..Step 13 Use.a.5/64-inch.(2mm).drill.bit.to.drill.the.three.holes. for.the.control.horn.screws..Apply.a.few.drops.of.thin.CA. into.each.hole.to.harden.the.wood.to.aid.in.preventing.the. wood.from.being.crushed.when.the.horn.is.installed. ..Step 14 Secure.the.control.horn.to.the.aileron.using.three.2-56.x. 1-inch.machine.screws.and.the.control.horn.backplate. Note:.Once.the.length.of.the.linkage. has.been.adjusted,.use.threadlock.on. the.nuts.and.clevises.to.prevent.them. from.vibrating.loose.in.flight. ..Step 15 Repeat.Steps.5.through.14.to.install.the.remaining.aileron. servo.and.linkage. Aileron Servo Installation 20 Required Parts •.Fuselage.assembly. •.4-40.nut.(4) •.Metal.clevis.(4). •.Rudder.cable •.Rigging.couplers.(4). •.Cable.crimps.(4) •.2-56.nuts.(3). •.Rudder.spring.(2) •.Rudder.tiller.bracket. •.Radio.tray.cover •.Safety.fuel.tubing.(4) •.Rado.tray.cover •.2-56.x.5/8-inch.machine.screw.(9) •.Hook.and.loop.strap.(2) •.#2.x.5/8-inch.sheet.metal.screw.(4) •.33.1/ 4-inch.(845mm).elevator.pushrod.(2) •.4-40.ball.end.w/hardware.(4) •.Control.horn.w/backplate.(4) Required Tools and Adhesives •.Drill. •.Large.servo.arm.(3) •.Threadlock. •.Hobby.knife •.Felt-tipped.pen. •.Thin.CA •.Crimping.tool/vice.grips. •.Pliers •.1/4-inch.(6mm).foam •.Drill.bit:.1/16-inch.(1.5mm),.5/64-inch.(2mm) ..Step 1 Locate.the.33.1/4-inch.(845mm).elevator.pushrod.and.a.4- 40.ball.end..Thread.the.ball.end.onto.one.end.of.the.rod.a. minimum.of.14.turns. ..Step 2 Attach.the.ball.end.to.a.large.servo.horn..Use.side.cutters. to.remove.the.remaining.arm.from.the.horn. ..Step 3 Slide.the.pushrod.into.the.elevator.pushrod.tube.inside. the.fuselage..You.will.need.to.trim.the.covering.from.the. pushrod.exit.using.a.hobby.knife. ..Step 4 Slide.a.piece.of.safety.fuel.tubing.onto.a.metal.clevis. Thread.a.4-40.nut.and.metal.clevis.onto.the.pushrod. Radio Installation 21 ..Step 5 Remove.the.backplate.from.a.control.horn..Attach.the. clevis.to.the.horn.and.position.the.horn.on.the.elevator. with.the.holes.in.the.horn.aligned.with.the.elevator.. hinge.line..The.horn.cenerline.will.be.1-inch.(25mm).. from.the.edge.of.the.stabilizer.to.avoid.interferrence. between.the.control.linkage.and.mounting.tabs..Use.a.. felt-tipped.pen.to.mark.the.positions.for.the.three.control. horn.mounting.screws. Align holes with hinge line ..Step 6 Use.a.5/64-inch.(2mm).drill.to.drill.through.the.elevator. for.the.control.horn.mounting.screws. ..Step 7 Apply.a.few.drops.of.thin.CA.into.each.of.the.holes.to. harden.the.surrounding.wood. ..Step 8 Attach.the.control.horn.to.the.elevator.using.three.. 2-56.x.5/8-inch.machine.screws.and.the.control.. horn.backplate. Note:.Once.the.length.of.the.linkage. has.been.adjusted;.use.threadlock.on. the.nuts.and.clevises.to.prevent.them. from.vibrating.loose.in.flight. Radio Installation 22 ..Step 9 Install.the.elevator.servo.into.the.fuselage..The.output.arm. on.the.servo.faces.toward.the.rear.of.the.fuselage..Secure. the.servo.horn.to.the.servo.using.the.hardware.provided. with.the.servo. .Step 10 Repeat.Steps.1.through.9.to.install.the.remaining.. elevator.servo. Note:.Using.two.standard.rotation.servos. and.a.standard.Y-harness.for.the.elevator. servos.will.result.in.them.moving.in.opposite. directions.instead.of.the.same.direction.. There.are.three.options.available.that.will. result.in.the.elevators.operating.correctly. Option 1:.Use.two.standard.rotation.servos. if.your.radio.has.programmable.mixing.. You.will.need.to.use.two.separate.channels. and.use.your.radio.to.mix.them.together. electronically.for.this.option.to.work. Option 2:.Use.two.servos.and.a.JR ®. MatchBox™.or.a.6".standard.reversing. Y-harness.(EXRA320).to.link.the.two. elevator.servos.to.operate.properly. Option 3:.Use.a.standard.rotation. servo.and.a.reverse.rotation.servo. and.a.standard.Y-harness. Note:.The.cable.will.be.installed.into.the. fuselage.from.the.tail.to.make.the.servo. end.of.the.cable.easier.to.install,.and. to.keep.it.from.falling.into.the.fuselage. while.installing.the.ends.and.servo. ..Step 11 Locate.the.rudder.cable.and.insert.one.end.of.the.cable. into.the.fuselage..Make.sure.the.cable.does.not.get. tangled.around.any.of.the.formers.on.its.way.to.where.the. rudder.servo.will.be.installed. Radio Installation 23 ..Step 12 Thread.a.rigging.coupler.into.one.of.the.4-40.ball.ends.. Slide.a.crimp.onto.the.cable,.then.pass.the.cable.through. the.rigging.coupler..The.cable.then.goes.back.through. the.crimp..Use.a.crimping.tool.or.vice.grips.to.secure.the. crimp.to.the.cable. ..Step 13 Repeat.Steps.11.and.12.to.prepare.the.other.end.of.. the.cable. .Step 14 Attach.the.ball.ends.to.the.servo.horn.using.the.hardware. included.with.the.ball.ends. .Step 15 Install.the.rudder.servo.into.the.fuselage.and.attach.the. servo.horn.to.the.servo.using.the.hardware.provided. with.the.servo..The.output.of.the.servo.faces.the.front.of. the.fuselage..Note.that.the.cables.cross.once.inside.the. fuselage:.The.cable.from.the.right.side.of.the.servo.exits. the.left.of.the.fuselage.and.vice.versa. .Step 16 Place.light.tension.on.the.cable.and.align.it.so.it.is. centered.in.the.exit.opening..The.rudder.control.horn. centerline.should.be.7/8-inch.(22mm).from.the.bottom.of. the.rudder..Mark.the.rudder.where.the.cable.crosses.with.a. felt-tipped.pen. Radio Installation 24 .Step 17 The.rudder.uses.two.control.horns.mounted.on.either. side..Position.one.horn.so.it.is.aligned.with.the.mark. made.in.the.previous.step..Mark.and.drill.the.holes.for.. the.control.horn.screws,.then.mount.the.horns..The.three.. 2-56.x.5/8-inch.machine.screws.go.through.the.first. control.horn,.through.the.rudder,.through.the.second.horn. and.are.then.secured.using.three.2-56.nuts. Align holes with hinge line Note:.Use.threadlock.on.the.nuts.to.prevent. them.from.vibrating.loose.in.flight. ..Step 18 Slide.a.piece.of.safety.tubing.on.a.metal.clevis..Thread.a. 4-40.nut.and.metal.clevis.onto.a.rigging.coupler..Slide. a.crimp.onto.the.cable,.then.slide.the.cable.through.the. coupler..The.cable.will.then.go.back.through.the.crimp.. Prepare.both.ends.of.the.cable.and.attach.the.clevises.to. the.control.horns..Adjust.the.cable.so.there.is.light.tension. on.the.cable,.then.secure.the.cable.using.the.crimp.and. crimping.pliers.or.vice.grips..Make.sure.to.install.that. safety.fuel.tubing.on.those.clevises. Note:.Once.the.length.of.the.cable. has.been.adjusted,.use.threadlock.on. the.nuts.and.clevises.to.prevent.them. from.vibrating.loose.in.flight. .Step 19 Attach.the.rudder.tiller.bracket.to.the.rudder.using.two.. #2.x.5/8-inch.sheet.metal.screws..It.is.highly.suggested.to. remove.the.screws,.then.apply.a.few.drops.of.thin.CA.into. the.holes.and.reinstall.the.screws. Radio Installation 25 .Step 20 Connect.the.rudder.tiller.bracket.to.the.tailwheel.steering. arm.using.the.two.rudder.springs..You.will.need.to.bend. the.springs.to.attach.them.on.each.end.using.pliers. .Step 21 Wrap.the.receiver.battery.and.receiver.in.1/4-inch.(6mm). foam..Attach.the.receiver.and.receiver.battery.to.the.radio. tray.using.hook.and.loop.straps. .Step 22 Slide.the.radio.tray.into.the.fuselage.and.secure.its. position.using.two.#2.x.1/2-inch.sheet.metal.screws. .Step 23 Install.a.choke.ring.(JRPA029).on.each.of.the.the.. 18-inch.(457mm).aileron.extensions.that.are.plugged.. into.the.receiver..These.will.be.hidden.under.the.radio.. tray..This.is.strongly.recommended.due.to.all.the.metal. struts.on.the.Cub. .Step 24 Plug.two.18-inch.(457mm).servo.extensions.into.. the.receiver.and.route.them.through.the.holes.in.the.. sides.of.the.fuselage.and.up.to.the.top.of.the.fuselage.. Slide.the.radio.tray.cover.into.position.so.it.locks.into. position.under.the.rear.cabin.wall..Use.two.#2.x.1/2-inch. sheet.metal.screws.to.secure.the.radio.tray.cover.inside. the.fuselage. Radio Installation 26 Required Parts •.Fuselage.assembly. •.Firewall.template •.Engine.mount.(2). •.#8.washer.(12) •.8-32.locknut.(4). •.Throttle.pushrod •.Throttle.pushrod.tube. •.Metal.clevis.(2) •.Battery.cover. •.#4.washer.(4) •.8-32.blind.nut.(4) •.Cowl.screw.fuel.tubing.(4) •.4-40.x.1/2-inch.socket.head.screw.(4) •.#2.x.1/2-inch.sheet.metal.screw.(2) •.Threaded.rod,.1-inch.(25mm).(2) •.8-32.x.1.1/4-inch.socket.head.screw.(4) •.8-32.x.1.1/2-inch.socket.head.screw.(4) Required Tools and Adhesives •.Drill. •.Threadlock •.Clamp. •.Medium.CA •.Phillips.screwdriver •.Hex.wrench:.3/32-inch,.9/64-inch •..Drill.bit:.1/16-inch.(1.5mm),.5/32-inch.(4mm),. 3/16-inch.(4.5mm) .Step 1 Place.the.firewall.template.in.position.on.the.firewall..Drill. the.locations.for.your.particular.engine.using.a.1/16-inch. (1.5mm).drill.bit..Drill.the.location.for.the.throttle.pushrod. at.this.time.as.well. .Step 2 Remove.the.template.and.enlarge.the.holes.using.a.. 3/16-inch.(4.5mm).drill.bit. .Step 3 Secure.the.engine.mounts.to.the.firewall.using.four.. 8-32.blind.nuts.from.the.inside.of.the.fuselage,.and.four. 8-32.x.1.1/4-inch.socket.head.screws.and.four.#8.washers. Engine Installation (Glow) 27 .Step 4 Position.the.engine.on.the.mount.so.the.drive.washer.is.6. inches.(152mm).forward.of.the.firewall..Clamp.the.engine. to.the.mount.and.transfer.the.locations.for.the.engine. mounting.bolts.onto.the.engine.mounts. .Step 5 Drill.the.locations.for.the.engine.mounting.screws.using.a. drill.and.5/32-inch.(4mm).drill.bit. .Step 6 Slide.the.throttle.pushrod.tube.into.the.hole.drilled.in. the.firewall..The.tube.will.extend.forward.of.the.firewall. slightly..Use.medium.CA.to.glue.the.tube.to.the.firewall. Note:.It.may.be.necessary.to.rotate. the.carburetor.to.align.with.the.throttle. pushrod.tube..Check.the.alignment.before. attaching.the.engine.to.the.engine.mount. .Step 7 Use.four.8-32.x.1.1/2-inch.socket.head.screws,.four.. 8-32.locknuts.and.eight.#8.washers.to.secure.the.engine. to.the.mount. Engine Installation (Glow) 28 .Step 8 Thread.a.1-inch.(25mm).threaded.rod.into.each.end.of. the.throttle.pushrod..Thread.a.metal.clevis.onto.one.of. the.threaded.rods.and.slide.the.pushrod.into.the.pushrod. tube..Attach.the.clevis.to.the.arm.of.the.carburetor. .Step 9 Secure.the.throttle.servo.in.the.fuselage.using.the. hardware.provided.with.the.servo..Thread.a.clevis.onto.the. threaded.rod.and.attach.the.clevis.to.the.servo.arm. .Step 10 Check.the.operation.of.the.throttle.servo.to.make.sure. it.doesn't.bind.and.the.throttle.will.move.from.open.to. closed..Make.any.adjustment.at.this.time.to.the.throttle. linkage.as.necessary. .Step 11 Slide.the.fuel.tank.into.the.fuselage.with.the.stopper.facing. toward.the.top.of.the.fuselage..Use.a.rubber.band.to.keep. the.fuel.tank.from.moving.rearward.in.the.fuselage. .Step 12 Use.two.#2.x.1/2-inch.sheet.metal.screws.to.secure.the. battery.cover.in.position.behind.the.fuel.tank. Engine Installation (Glow) 29 .Step 13 Install.the.muffler.and.connect.the.fuel.lines.from.the.tank. to.the.engine. Note:.We.used.a.fuel.dot.and.T-fitting. on.our.model.so.the.cowl.won't.have. to.be.removed.to.fuel.the.engine. Note:.You.will.need.to.use.a.Muffler. Right.Angle.Adapter.(SAI120S140). when.installing.the.Saito.engines. .Step 14 Attach.the.cowling.using.four.4-40.x.1/2-inch.. socket.head.screws,.four.pieces.of.cowl.screw.tubing.. and.four.#4.washers..Install.the.propeller.to.complete.. the.engine.installation. Engine Installation (Glow) 30 Required Parts •.Fuselage.assembly. •.Firewall.template •.Throttle.pushrod.tube. •.Metal.clevis.(2) •.Battery.cover. •.#4.washer.(4) •.Cowl.screw.tubing.(4). •.Throttle.pushrod •.Fender.washer.(4) •.Ignition.switch.(JRPA004) •.10-32.x.5/8-inch.bolt.(4) •.4-40.x.1/2-inch.socket.head.screw.(4) •.#2.x.1/2-inch.sheet.metal.screw.(2) •.Threaded.rod,.1-inch.(25mm).(2) •.38mm.engine.stand-offs.(EVO3307) Required Tools and Adhesives •.Drill •.Clamp. •.Medium.CA •.Phillips.screwdriver. •.Threadlock •.Hex.wrench:.3/32-inch,.9/64-inch •..Drill.bit:.1/16-inch.(1.5mm),.3/16-inch.(4.5mm) .Step 1 Place.the.firewall.template.in.position.on.the.firewall..Drill. the.locations.for.your.particular.engine.using.a.1/16-inch. (1.5mm).drill.bit..Drill.the.location.for.the.throttle.pushrod. at.this.time.as.well. .Step 2 Remove.the.template.and.enlarge.the.holes.using.a.. 3/16-inch.(4.5mm).drill.bit. .Step 3 .Slide.the.throttle.pushrod.tube.into.the.hole.drilled.in. the.firewall..The.tube.will.extend.forward.of.the.firewall. slightly..Use.medium.CA.to.glue.the.tube.to.the.firewall. .Step 4 Attach.the.engine.and.accessories.to.the.firewall.as.shown. in.the.following.photos. Engine Installation (Gas) 31 .Step 5 Secure.the.throttle.servo.in.the.fuselage.using.the. hardware.provided.with.the.servo..Thread.a.clevis.onto.the. threaded.rod.and.attach.the.clevis.to.the.servo.arm. Note:.When.using.a.gas.engine.it.is. recomended.that.an.RF.choke.ring.(JRPA029). be.used..The.servo.lead.must.make.3. passes.around.or.through.the.ring. .Step 6 Remove.the.stopper.from.the.fuel.tank.using.a.Phillips. screwdriver..Remove.the.fuel.lines.from.the.stopper.and. set.them.aside..Prepare.the.tubing.by.placing.a.drop.of. solder.on.the.ends.of.the.brass.tubing.as.shown..This. will.keep.the.fuel.line.from.slipping.off.the.tube.when. combined.with.the.following.steps. .Step 7 Slide.gas.compatible.fuel.lines.back.onto.the.brass.. tubes..Use.fine.wire.to.secure.the.fuel.lines..The.wire.. is.placed.behind.the.solder.applied.in.the.previous.step.. to.keep.the.tubes.in.place. .Step 8 Carefully.insert.the.stopper.assembly.into.the.fuel.tank.. Note.the.position.of.the.vent.tube;.it.must.be.up.at.the.top. portion.of.the.fuel.tank.to.function.properly..Tighten.the. screw.carefully—do.not.over-tighten. Engine Installation (Gas) 32 .Step 9 Slide.the.fuel.tank.into.the.fuselage.with.the.stopper.facing. toward.the.top.of.the.fuselage..Use.a.rubber.band.to.keep. the.fuel.tank.from.moving.rearward.in.the.fuselage. .Step 10 Use.two.#2.x.1/2-inch.sheet.metal.screws.to.secure.the. battery.cover.in.position.behind.the.fuel.tank. The.ignition.battery.should.be.placed. next.to.the.fuel.tank.behind.the.firewall.. This.is.to.keep.as.much.separtation. between.the.ignition.and.the.RX. The.battery.pack.should.be.installed. before.installing.the.fuel.tank..The.model. was.flown.with.the.battery.pack.placed. here.when.using.the.Zenoh.20ei. .Step 11 Trim.the.cowling.as.necessary.to.clear.the.muffler,. carburetor.and.head.of.the.engine..Secure.the.cowling. using.four.4-40.x.1/2-inch.socket.head.screws,.four. pieces.of.cowl.screw.tubing.and.four.#4.washers. Engine Installation (Gas) 33 Required Parts •.Fuselage.assembly. •.Front.windscreen •.Side.window.(left.and.right). •.Upper.window •.Front.seat.bottom. •.Front.seat.back •.Rear.seat.bottom. •.Rear.seat.back •.Floor. •.Instrument.panel •.Windscreen.supports. •.Hook.and.loop •.Pilot •.#2.x.1/2-inch.sheet.metal.screw.(4) Required Tools and Adhesives •.Switch.harness. •.Medium.CA •.Phillips.screwdriver. •.Hobby.knife •.Hobby.scissors. •.30-minute.epoxy •.Canopy.glue .Step 1 Install.the.switch.harness.into.the.opening.in.the.rear.. seat.bottom. .Step 2 Use.medium.CA.to.glue.the.rear.seat.back.to.the.rear.. seat.bottom. .Step 3 Plug.the.switch.harness.into.the.battery.and.receiver..Slide. the.rear.seat.into.position,.guiding.the.wires.from.the. switch.harness.behind.the.seat. .Step 4 Glue.the.front.seat.back.to.the.front.seat.bottom..Slide.the. front.seat.into.position. Interior Detail Installation 34 .Step 5 Use.four.#2.x.1/2-inch.sheet.metal.screws.to.secure.the. floor.into.the.fuselage..The.floor.will.keep.the.seats.from. sliding.in.the.fuselage. .Step 6 Use.medium.CA.to.glue.the.instrument.panel.into.. the.fuselage .Step 7 Use.30-minute.epoxy.to.glue.the.windscreen.supports.into. position.as.shown. .Step 8 Use.canopy.glue.to.glue.the.front.windscreen.onto.the. fuselage.as.shown. Interior Detail Installation 35 ..Step 9 Use.a.hobby.knife.and.hobby.scissors.to.trim.the.side. windows..Use.canopy.glue.to.attach.the.side.windows.. into.position. ..Step 10 Trim.the.rear.window.and.use.canopy.glue.to.secure.the. rear.window.in.position. .Step 11 Repeat.Steps.9.and.10.for.the.opposite.side.windows. .Step 12 Complete.the.window.installation.by.trimming.and. installing.the.upper.window.in.the.fuselage. .Step 13 Use.hook.and.loop.to.secure.the.pilot.in.the.fuselage. Interior Detail Installation 36 Required Parts •.Wing.(left.and.right). •.Short.strut.pin.(4) •.Mid-span.stud.(4). •.4mm.nut.(4) •.Wing.strut.end.(4). •.Long.strut.pin.(4) •.Retainer.clip.(8). •.Aluminum.wing.tube •.Wing.strut.wing.bracket. •.4-40.locknut.(8) •.1/4-20.nylon.wing.bolt.(2) •.Mid-span.cross.brace.(2) •.4-40.x.3/4-inch.socket.head.screw.(8) •.4-40.x.3/8-inch.socket.head.screw.(4) •.4-40.x.1/2-inch.socket.head.screw.(4) •.Front.wing.strut.(left.and.right) •.Rear.wing.strut.(left.and.right) Required Tools and Adhesives •.Hex.wrench:.3/32-inch. •.Threadlock •.Nut.driver:.1/4-inch ..Step 1 Attach.the.wing.strut.wing.brackets.to.the.bottom.of.the. wing.using.four.4-40.x.3/4-inch.socket.head.screws. Note:.Use.threadlock.on.the.screws.to. prevent.them.from.vibrating.loose.in.flight. ..Step 2 Thread.two.of.the.mid-span.studs.into.the.wing..The. threads.of.the.studs.should.be.flush.to.the.top.of.the.wing ..Step 3 Attach.the.front.and.rear.wing.strut.to.the.brackets.. using.four.4-40.x.1/2-inch.socket.head.screws.and.. 4-40.locknuts. Note:.The.wide.strut.goes.toward.the.leading. edge,.the.narrow.strut.toward.the.trailing. edge..The.airfoil.on.the.struts.will.match. the.wing.as.well.when.they.are.installed. Wing Installation 37 ..Step 4 Thread.the.wing.strut.ends.and.4mm.nuts.on.the.ends.. of.the.struts. ..Step 5 Install.the.mid-span.supports.and.cross.brace.as.shown.. The.brace.and.supports.attach.using.two.4-40.x.3/8-inch. socket.head.screws.and.4-40.locknuts..The.supports. attach.to.the.mid-span.studs.using.two.long.strut.pins.and. two.retainer.clips. ..Step 6 Slide.the.aluminum.wing.tube.into.the.fuselage..The.wing. is.then.slid.onto.the.wing.tube..Plug.the.servo.lead.in.the. wing.into.the.extension.inside.the.fuselage. ..Step 7 The.wing.is.held.in.place.using.a.1/4-20.nylon.wing.bolt. Wing Installation 38 ..Step 8 Confirm.that.there.is.a.piece.of.tubing.on.the.pin.before. inserting.it.into.the.brace..If.not,.install.a.piece.of.tubing. to.prevent.vibration.and.radio.interferrence..Slide.the.. short.pins.from.the.strut.ends.into.the.brace.at.the. fuselage..It.will.be.necessary.to.adjust.the.strut.ends.. to.align.without.binding.or.twisting.the.wing..Once. adjusted,.tighten.the.4mm.nuts.against.the.ends.to.. prevent.them.from.changing.position. Note:.Use.threadlock.on.the.strut. ends.and.4mm.nuts.to.prevent.them. from.vibrating.loose.in.flight. ..Step 9 Secure.the.strut.ends.to.the.wing.using.two.retainer.. pin.clips. Wing Installation 39 The.amount.of.control.throw.should.be.adjusted.as.closely. as.possible.using.mechanical.means,.rather.than.making. large.changes.electronically.at.the.radio..By.moving. the.position.of.the.clevis.at.the.control.horn.toward.the. outermost.hole,.you.will.decrease.the.amount.of.control. throw.of.the.control.surface:.moving.it.toward.the.control. surface.will.increase.the.amount.of.throw;.moving.the. pushrod.wire.at.the.servo.arm.will.have.the.opposite. effect..Moving.it.closer.to.center.will.decrease.throw,. and.away.from.center.will.increase.throw..Work.with.a. combination.of.the.two.to.achieve.the.closest.or.exact. control.throws.listed. Aileron: High.Rate:. 1.1/8-inch.(28mm).up . 1.1/8-inch.(28mm).down Low.Rate:. 3/4-inch.(19mm).up . 3/4-inch.(19mm).down Note:.Aileron.throw.is.measured.at.the.trailing. edge.of.the.aileron.nearest.the.fuselage. Elevator: High.Rate:. 2-inch.(51mm).up/down Low.Rate:. 1.1/4-inch.(32mm).up/down Note:.Elevator.throw.is.measured. at.the.trailing.edge.of.the.elevator. next.to.the.fuselage. Rudder: High.Rate:. 2.1/4-inch.(57mm).left/right Low.Rate:. 1.1/2-inch.(38mm).left/right Note:.Rudder.throw.is.measured. at.the.bottom.of.the.rudder. An.important.part.of.preparing.the.aircraft.for.flight.is. properly.balancing.the.model..This.is.especially.important. when.various.engines.are.mounted. Caution:.Do.not.inadvertently.skip.this.step! The.recommended.Center.of.Gravity.(CG).location.for.. the.Piper.J-3.Cub.is.CG:.4.1/2.inches.(114mm).back.. from.leading.edge.of.wing.at.the.root.rib..Mark.the. location.of.the.CG.onto.the.bottom.of.the.wing.using.. a.felt-tipped.pen..Make.sure.the.aircraft.is.upright.when. checking.the.CG..If.the.nose.of.your.aircraft.hangs.low,. add.weight.to.the.rear.of.the.aircraft..If.the.tail.hangs.low,. add.weight.to.the.nose.of.the.aircraft..Stick-on.weights.. are.available.at.your.local.hobby.store.and.work.well.for. this.purpose..The.CG.Range.for.your.Piper.J-3.Cub.is.. 4–4.3/4.inches.(102mm–120mm).back.from.leading.. edge.of.wing.at.the.root.rib. Control Throws Recommended Center of Gravity (CG) 40 Pre-Flight Charge.both.the.transmitter.and.receiver.pack.for.your.airplane..Use.the.recommended.charger.supplied.with.your. particular.radio.system,.following.the.instructions.provided.with.the.radio..In.most.cases,.the.radio.should.be.charged.the. night.before.going.out.flying. Check.the.radio.installation.and.make.sure.all.the.control.surfaces.are.moving.correctly.(i.e..the.correct.direction.and.with. the.recommended.throws)..Test.run.the.engine.and.make.sure.it.transitions.smoothly.from.idle.to.full.throttle.and.back.. Also.ensure.the.engine.is.tuned.according.to.the.manufacturer’s.instructions,.and.it.will.run.consistently.and.constantly.at. full.throttle.when.adjusted. Check.all.the.control.horns,.servo.horns.and.clevises.to.make.sure.they.are.secure.and.in.good.condition..Replace.any. items.that.would.be.considered.questionable..Failure.of.any.of.these.components.in.flight.would.mean.the.loss.of.your. aircraft. Adjusting the Engine .Step 1 Completely.read.the.instructions.included.with.your.engine.and.follow.the.recommended.break-in.procedure. .Step 2 At.the.field,.adjust.the.engine.to.a.slightly.rich.setting.at.full.throttle.and.adjust.the.idle.and.low-speed.needle.so.that.a. consistent.idle.is.achieved. .Step 3 Before.you.fly,.be.sure.that.your.engine.idles.reliably,.transitions.and.runs.at.all.throttle.settings..Only.when.this.is. achieved.should.any.plane.be.considered.ready.for.flight. Range Test Your Radio Before.each.flying.session,.be.sure.to.range.check.your.radio..See.your.radio.manual.for.the.recommended.range.and. instructions.for.your.radio.system..Each.radio.manufacturer.specifies.different.procedures.for.their.radio.systems..If.using. a.gasoline.engine,.check.the.range.first.with.the.engine.not.running.and.note.the.distance..Next,.start.the.engine..With.the. model.securely.anchored,.check.the.range.again..The.range.test.should.not.be.significantly.affected..If.it.is,.don’t.attempt. to.fly!.Have.your.radio.equipment.checked.out.by.the.manufacturer. Instructions for Disposal of WEEE by Users in the European Union This.product.must.not.be.disposed.of.with.other.waste..Instead,.it.is.the.user’s.responsibility.to.dispose.of.their.waste. equipment.by.handing.it.over.to.a.designated.collection.point.for.the.recycling.of.waste.electrical.and.electronic. equipment..The.separate.collection.and.recycling.of.your.waste.equipment.at.the.time.of.disposal.will.help.to.conserve. natural.resources.and.ensure.that.it.is.recycled.in.a.manner.that.protects.human.health.and.the.environment..For.more. information.about.where.you.can.drop.off.your.waste.equipment.for.recycling,.please.contact.your.local.city.office,.your. household.waste.disposal.service.or.where.you.purchased.the.product. 41 Building and Flying Notes 42 GENERAL 1..A.model.aircraft.shall.be.defined.as.a.non-human- carrying.device.capable.of.sustained.flight.in.the. atmosphere..It.shall.not.exceed.limitations.established. in.this.code.and.is.intended.to.be.used.exclusively.for. recreational.or.competition.activity. 2..The.maximum.takeoff.weight.of.a.model.aircraft,. including.fuel,.is.55.pounds,.except.for.those.flown. under.the.AMA.Experimental.Aircraft.Rules. 3..I.will.abide.by.this.Safety.Code.and.all.rules. established.for.the.flying.site.I.use..I.will.not.willfully. fly.my.model.aircraft.in.a.reckless.and/or.dangerous. manner. 4..I.will.not.fly.my.model.aircraft.in.sanctioned.events,. air.shows,.or.model.demonstrations.until.it.has.been. proven.airworthy. 5..I.will.not.fly.my.model.aircraft.higher.than. approximately.400.feet.above.ground.level,.when. within.three.(3).miles.of.an.airport.without.notifying.the. airport.operator..I.will.yield.the.right-of-way.and.avoid. flying.in.the.proximity.of.full-scale.aircraft,.utilizing.a. spotter.when.appropriate. 6..I.will.not.fly.my.model.aircraft.unless.it.is.identified. with.my.name.and.address,.or.AMA.number,.inside.or. affixed.to.the.outside.of.the.model.aircraft..This.does. not.apply.to.model.aircraft.flown.indoors. 7..I.will.not.operate.model.aircraft.with.metal-blade. propellers.or.with.gaseous.boosts.(other.than.air),. nor.will.I.operate.model.aircraft.with.fuels.containing. tetranitromethane.or.hydrazine. 8..I.will.not.operate.model.aircraft.carrying.pyrotechnic. devices.which.explode.burn,.or.propel.a.projectile. of.any.kind..Exceptions.include.Free.Flight.fuses.or. devices.that.burn.producing.smoke.and.are.securely. attached.to.the.model.aircraft.during.flight..Rocket. motors.up.to.a.G-series.size.may.be.used,.provided. they.remain.firmly.attached.to.the.model.aircraft.during. flight..Model.rockets.may.be.flown.in.accordance.with. the.National.Model.Rocketry.Safety.Code;.however,. they.may.not.be.launched.from.model.aircraft..Officially. designated.AMAAir.Show.Teams.(AST).are.authorized. to.use.devices.and.practices.as.defined.within.the.Air. Show.Advisory.Committee.Document. 9..I.will.not.operate.my.model.aircraft.while.under.the. influence.of.alcohol.or.within.eight.(8).hours.of.having. consumed.alcohol. 10..I.will.not.operate.my.model.aircraft.while.using.any. drug.which.could.adversely.affect.my.ability.to.safely. control.my.model.aircraft. 11..Children.under.six.(6).years.old.are.only.allowed.on. a.flightline.or.in.a.flight.area.as.a.pilot.or.while.under. flight.instruction. 12..When.and.where.required.by.rule,.helmets.must.be. properly.worn.and.fastened..They.must.be.OSHA,.DOT,. ANSI,.SNELL.or.NOCSAE.approved.or.comply.with. comparable.standards. 2007 Official AMA National Model Aircraft Safety Code 43 Radio Control 1..All.model.flying.shall.be.conducted.in.a.manner.to. avoid.over.flight.of.unprotected.people. 2..I.will.have.completed.a.successful.radio.equipment. ground-range.check.before.the.first.flight.of.a.new.or. repaired.model.aircraft. 3..I.will.not.fly.my.model.aircraft.in.the.presence.of. spectators.until.I.become.a.proficient.flier,.unless.I.am. assisted.by.an.experienced.pilot. 4..At.all.flying.sites.a.line.must.be.established,.in.front.of. which.all.flying.takes.place..Only.personnel.associated. with.flying.the.model.aircraft.are.allowed.at.or.in.front. of.the.line..In.the.case.of.airshows.demonstrations. straight.line.must.be.established..An.area.away.from. the.line.must.be.maintained.for.spectators..Intentional. flying.behind.the.line.is.prohibited. 5..I.will.operate.my.model.aircraft.using.only.radio- control.frequencies.currently.allowed.by.the.Federal. Communications.Commission.(FCC)..Only.individuals. properly.licensed.by.the.FCC.are.authorized.to.operate. equipment.on.Amateur.Band.frequencies. 6..I.will.not.knowingly.operate.my.model.aircraft.within. three.(3).miles.of.any.preexisting.flying.site.without. a.frequency-management.agreement..A.frequency- management.agreement.may.be.an.allocation.of. frequencies.for.each.site,.a.day-use.agreement.between. sites,.or.testing.which.determines.that.no.interference. exists..A.frequency-management.agreement.may.exist. between.two.or.more.AMA.chartered.clubs,.AMA. clubs.and.individual.AMA.members,.or.individual. AMA.members..Frequency-management.agreements,. including.an.interference.test.report.if.the.agreement. indicates.no.interference.exists,.will.be.signed.by.all. parties.and.copies.provided.to.AMA.Headquarters. 7..With.the.exception.of.events.flown.under.official.AMA. rules,.no.powered.model.may.be.flown.outdoors.closer. than.25.feet.to.any.individual,.except.for.the.pilot.and. located.at.the.flight.line. 8..Under.no.circumstances.may.a.pilot.or.other.person. touch.a.model.aircraft.in.flight.while.it.is.still.under. power,.except.to.divert.it.from.striking.an.individual. 9..Radio-controlled.night.flying.is.limited.to.low- performance.model.aircraft.(less.than.100.mph).. The.model.aircraft.must.be.equipped.with.a.lighting. system.which.clearly.defines.the.aircraft's.attitude.and. direction.at.all.times. 10..The.operator.of.a.radio-controlled.model.aircraft.shall. control.it.during.the.entire.flight,.maintaining.visual. contact.without.enhancement.other.than.by.corrective. lenses.that.are.prescribed.for.the.pilot..No.model. aircraft.shall.be.equipped.with.devices.which.allow.it. to.be.flown.to.a.selected.location.which.is.beyond.the. visual.range.of.the.pilot. 2007 Official AMA National Model Aircraft Safety Code ©.2007.Horizon.Hobby,.Inc.. 4105.Fieldstone.Road. Champaign,.Illinois.61822. (877).504-0233. horizonhobby.com 9942









