Chapter 12: Vertical Closeout
LANCAIR LEGACY · Maintenance Manual
Overview
This document is the maintenance manual for the Lancair Legacy aircraft, specifically focusing on the vertical closeout procedures. It includes revisions, parts lists, and detailed construction procedures for components such as the vertical stabilizer and rudder.
- Includes a revision list for updates to the construction manual.
- Provides a parts list for the vertical closeout.
- Details construction procedures for counterweight installation.
- Describes the installation of the left vertical skin.
- Outlines bonding procedures for the vertical stabilizer.
- Specifies the need for vent and drain holes in the structure.
- Includes instructions for installing the elevator weldment access panel.
- Emphasizes the use of proper adhesives during construction.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Reference only, not for flight. Use the current approved manual for your aircraft. See terms, section 5.
Document
Source
Copy found at lancair.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Maintenance Manual
- Year ·
- 2000
- File size ·
- 440 KB
- Copy found at ·
- lancair.com
- Language ·
- en
Specifications & performance
Extracted from this document.
Specifications
- Rivets qty ·
- 28
- Nutplates qty ·
- 14
- Access panel qty ·
- 2
- Machine screw qty ·
- 14
- Lead counterweight qty ·
- 1
- Vertical stabilizer skin left qty ·
- 1
Weight & balance
- Rudder counterweight weight (lb) ·
- 3.0
- Rudder counterweight weight grams ·
- 1362
What is the Chapter 12: Vertical Closeout?
The Chapter 12: Vertical Closeout is a maintenance manual for the LANCAIR LEGACY, dated 2000.
What year was the Chapter 12: Vertical Closeout published?
The Chapter 12: Vertical Closeout — the LANCAIR LEGACY maintenance manual on file — is dated 2000.
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- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
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In this document
Introduction
Introduces the vertical closeout chapter and its purpose in the construction manual.
Parts List
Lists the necessary parts for the vertical closeout, including part numbers and quantities.
Construction Procedures
Details the steps for installing the counterweight, left vertical skin, and bonding the vertical stabilizer.
Counterweight Installation
Describes how to fit and install the rudder counterweight, including trimming and weight measurement.
Left Vertical Skin Installation
Guides the installation of the left vertical skin, including fitting and drilling instructions.
Elevator Weldment Access Panel
Provides instructions for installing the access panel, including drilling and nutplate installation.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Safety notes
- Ensure proper bonding procedures are followed when closing the vertical stabilizer.
- Trim the rudder counterweight as necessary to meet weight specifications.
- Drill vent and drain holes to prevent pressure buildup and water accumulation.
- Use appropriate adhesives to avoid structural failures.
- Check the fit of ribs and spars before closing the vertical skin.
- Practice the closing process to ensure proper fit.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Full document text
Chapter 12 REV. 1/09-18-02 VERTICAL CLOSEOUT 12-i Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 REVISION LIST CHAPTER 12 : VERTICAL CLOSEOUT The following list of revisions will allow you to update the Legacy construction manual chapter listed above. Under the “Action” column, “R&R” directs you to remove and replace the pages affected by the revision. “Add” directs you to insert the pages shows and “R” to remove the pages. PAGE(S) AFFECTED REVISION # & DATE ACTION DESCRIPTION 12-1 through 12-9 0/02-15-02 None Current Revision is Correct 12-1 3/12-15-04 R&R Updated table of contents with page numbers. 12-1 3/12-15-04 R&R Updated parts list. 12-7 3/12-15-04 R&R Updated rivets from MSC-32 to MSC-34. 3/12-15-04 Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-1 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 1. INTRODUCTION 2. PARTS LIST # PART NO. (P/N) QTY DESCRIPTION OPTIONAL ITEM (not included with kit) 1) 4044 1 Vertical Stabilizer/Rudder Skin, Left side 2) 4460 2 Access Panel, Left/Right Elevator Weldment 3) 4656 1 Lead Counterweight, Rudder 4) K1000-08 14 Nutplates 5) MSC-34 28 Rivets 6) MS24694-S3 14 Screw, Machine Chapter 12: Vertical Closeout Note: Optional Parts available through : (*) Lancair Avionics (**) Kit Components, Inc. Contents 1. INTRODUCTION .......................................................................................... 12-1 2. PARTS LIST .................................................................................................. 12-1 3. CONSTRUCTION PROCEDURES ............................................................. 12-2 A. Counterweight Installation .......................................................................................... 12-2 B. Left Vertical Skin Installation ...................................................................................... 12-3 Typical Vertical Tail Cross Section .......................................................................... 12-3 C. Elevator Weldment Access Panel ............................................................................... 12-7 D. Bonding the Vertical Stabilizer .................................................................................... 12-8 3/12-15-04 Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-2 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 3. CONSTRUCTION PROCEDURES A. Counterweight Installation A 1. Fit the rudder counterweight as far forward as possible. Some trimming of the counterweight may be neces- sary. A 2. Measure the weight of the rudder counterweight. It should weigh 3.0 lbs. or 1362 grams. Trim as necessary. A 4. Install and fit a piece of 2 core 2 3/4” aft of the rib. The purpose of the compartment is to leave room for adding lead if necessary. A 5. Apply a 2 BID reinforcement extending from the lead counterweight onto the rudder skin and onto the 2 core 2 rib. VIEW AA A 6. Drill a 3/16” dia vent hole. A 3. Pot the lead weight in place with epoxy/flox. Lead counterweight P/N: 4656 3/4” A A Rudder Counterweight Installation Fig. 12:A:1 Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-3 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Fitting Left Vertical Skin Fig. 12:B:1 The trailing edges form a butt joint. Left side of vertical skin Trim left vertical skin as necessary for a good fit in leading edge. Once properly fitted, drill for clecos every 2”-3”. Carefully trim the left vertical skin in this area for a good fit to the horizontal stabilizer. Prior to closing, you must carefully check the fit of the ribs and spars to the left vertical skin. We suggest using small pieces of play dough distributed evenly around the structure. Then practice the closing process (refer to figure 12:B:4) to check the fit. B. Left Vertical Skin Installation Typical Vertical Tail Cross Section Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-4 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Drill a series of 1/8” dia. holes close to the rudder counterweight closeout rib. These holes will be used as reference for cutting out the rudder counterweight. Rudder Trim Line Reference Holes Fig. 12:B:2 Rudder counterweight closeout rib 1/8” dia. holes drilled 3/16” aft of pivot point (see figure on right). Upper hinge Lower hinge Pivot point 3/16” 1/8” dia. hole Drill 1/8” diameter holes 3/16” aft of the pivot point of the upper and lower hinges. NOTE: DRILL HOLES IN BOTH LEFT AND RIGHT VERTICAL SKINS. Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-5 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Vertical Tail Vent Holes Fig. 12:B:3 All compartments within the structure must have both a way to vent and a drain. A vent allows a passage for air with changing pressure. A drain allows water to escape. The drain should be in the lowest area of the compartment. The figure on the right shows a typical vent/drain arrangement. Vent hole in rudder spar Vent hole in rudder counter- weight closeout rib Upper rudder rib vent hole Vent hole Drain hole Drain holes Vent hole in rib Vent hole in rudder spar Vent hole Vent hole in upper vertical bulkhead (4049) Vent hole in rib After closing the vertical, drill a drain hole in the bottom of the rudder. Vent hole in rib Vent hole in rib Vent hole in rib Vent hole in rudder spar Vent hole in rudder spar After closing the vertical, drill a drain hole in the bottom of the rudder. Vent hole in rib Vent hole in rib Vent hole in rib Vent hole in rudder spar Vent hole in rudder spar Vent and drain holes are typically 3/16” in diameter. Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-6
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Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Closing Vertical Stabilizer Fig. 12:B:4 Use epoxy/flox or other approved adhesive for the closing process. Follow proper bonding procedures! Typical Vertical Member 3/16” Adhesive Rib/spar etc. Use the left side of the vertical cradles for this step. Use a short straight edge in between the cradles to check for straightness. Foam dam installed prior to closing to prevent adhesive from “running away”. Install foam approx 3/4” from trailing edge. Clamp short pieces of preferably angled aluminum to ensure a straight trailing edge. Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-7 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Elevator Weldment Access Panel Fig. 12:C:1 C 2. Install the nutplates using MSC-34 pop rivets. C 3. Trim the flange to approximately 5/8”. Around the nutplates, this dimension will increase as necessary. C 4. Countersink the holes for the elevator access panels using a 100 degree countersink. Pop rivet, MSC-32 (28 pcs) 5/8” Machine screw MS24694-S3 (14 pcs) Nutplate K1000-08 (14 pcs) Elevator weldment access panel 4460 (2 pcs) C. Elevator Weldment Access Panel C 1. Center the elevator weldment access panel in the joggle. Drill the holes for the screws using the inspection panel as a drill guide. Use a #20 drill. 3/12-15-04 Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-8 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 Leading edge of Vertical Stabilizer VIEW AA Right vertical skin 2 BID L.E. reinforcement 2 BID Reinforcement Note that it is advisable to butt the 2 BID-don’t overlap 2 BID Reinforcement along leading edge. See view AA BID Reinforcemenrts Fig. 12:D:1 It isn’t necessary to overlap the BID tapes at the junctions. Simply butt the joints. VIEW BB Fill the area between the joint as necessary with epoxy/micro to avioid trppong air. 2 BID VIEW BB Fill the area between the joint as necessary with epoxy/micro to avoid trapping air. 2 BID D. Bonding the Vertical Stabilizer Fill the area between the joint as necessary with epoxy/micro. 3 BID Reinforcement between horizontal stab and vertical (top and bottom, refer to figure 12:D:2) Left vertical skin Chapter 12 REV. 0/02-15-02 VERTICAL CLOSEOUT 12-9 Lancair International Inc., Represented by Neico Aviation Inc., Copyright © 2000 , Redmond, OR 97756 BID Reinforcements Securing Horizontal Stabilizer Fig. 12:D:2 Apply 2” wide 3 BID between horizontal stabilizer and vertical. Micro fillet approximately 1 1/2” diameter. A film container works good for forming this radius. Body work the horizontal stabilizer to the fillet. The micro will typically extend 8” to 10” outboard to blend in.Elevator travel stop CROSS SECTIONAL VIEW LOOKING FORWARD 2” wide 3 BID 2 BID 2” X 1.5” phenolic Vertical stabilizer Horizontal stabilizer