PIPER NAVAJO PANTHER PA - 31
Piper PA-31 Navajo · Normal Procedures
Overview
This document provides normal procedures and operational limitations for the Piper PA-31 Navajo. It is intended for pilots operating this aircraft model, detailing critical performance metrics, emergency procedures, and engine operating limits. The manual outlines essential speeds, weights, and engine specifications necessary for safe flight operations. It also includes emergency procedures for engine failure during takeoff and flight, as well as guidelines for handling engine fires both on the ground and in the air.
- Va (Maneuvering Speed): 155 KIAS
- Maximum Takeoff Weight: 6500 lbs
- Engine Maximum Continuous Power: 350 HP
- Fuel Capacity: 246 U.S. gallons
- Emergency procedures for engine failure during takeoff and flight are critical for safety.
Document
Source
Originally published by www.dgac.gob.cl. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Normal Procedures
- Pages
- 4
- File size
- 19 KB
- Publisher
- www.dgac.gob.cl
Specifications & performance
Extracted from this document.
Specifications
- Engine (hp)
- 350
- Max speed (kt)
- 230
- Fuel capacity (gal)
- 246
- Max takeoff weight (lb)
- 6,500
Performance
- Max crosswind (kt)
- 20
V-speeds
- VA
- 155
- VR
- 83
- VX
- 85
- VY
- 100
- VFE
- 158
- VNE
- 230
- VNO
- 180
- VS1
- 70
Weight & balance
- Baggage allowance (lb)
- 150
- Max takeoff weight (lb)
- 6,500
Common. Rarer than 3% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Piper PA-31 Navajo.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the PA-31 Navajo to your watchlist and track it in one place.
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- Master Minimum Equipment List Supplement to Piper Aircraft PA-31, PA-31-300, 325, 350Checklist
- AAIB Bulletin: 4/2011 N80HFOther Documents
- PIPER PA-31-310/325 NavajoSystems Description
- AIRWORTHINESS DIRECTIVEAirworthiness Directives
- EMERGENCY AIRWORTHINESS DIRECTIVEAirworthiness Directives
- PA-32-260, PA-32-300, PA-32R-300 CHEROKEE PIPER PARTS ...Parts Catalog
- Wiring Diagram for Piper PA-31 NavajoWiring Diagram
- Pilot's Operating HandbookPilot's Operating Handbook
- Normal Procedures for the Piper PA-31 NavajoNormal Procedures
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In this document
Operations Limitations
This section outlines the operational limitations of the Piper PA-31 Navajo, including critical speeds such as Va (155 KIAS), Vne (230 KIAS), and Vso (70 KIAS). It details weight limits for takeoff (6500 lbs), baggage distribution, and engine operating limits, including maximum continuous power of 350 HP and RPM of 2575. Fuel specifications are also provided, with a total capacity of 246 U.S. gallons.
Emergency Procedures
The emergency procedures section describes actions to take in the event of engine failure during takeoff and flight. For engine failure below 83 KIAS, pilots should close the throttle and apply brakes as necessary. Above 83 KIAS, maintain directional control and feather the inoperative engine's propeller. The section also includes procedures for handling engine fires on the ground and in flight, emphasizing the importance of shutting off fuel and securing the engine.
Engine Operating Limits
This section specifies the engine operating limits, including oil temperature (minimum 120°F, maximum 245°F) and oil pressure (minimum 25 PSI, maximum 100 PSI). It also covers the procedure for feathering the propeller and the necessary checks before securing an inoperative engine.
Safety notes
- Maintain directional control during engine failure.
- Follow emergency procedures precisely to ensure safety during engine failure or fire.
Full document text
1 DEPARTAMENTO “SEGURIDAD OPERACIONAL” SUBDEPARTAMENTO “LICENCIAS” SECCIÓN EVALUACIONES “PIPER NAVAJO PANTHER PA - 31” “CC – PKK” A.- Operations Limitations 1.- Speed (Kias) Va 155 Vne 230 Vno 180 Vfe 15° 158 Vfe 25° 140 Vle 152 Vlo (Extension) 152 Vlo (Retraction) 127 Vmca 78 Vso 70 Vx 85 Vy 100 Vsse 87 Vxse 93 Vyse 106 Vr 83 Vapp (flaps 40°) 91 Max. Cross Wind 20 3.- Weight (Lbs) Máximo TAKE-OFF 6500 Baggaje FWD 150 Baggaje AFT 200 Nacelle (ea/o) 150 4.- Engine (Max. Continue Power) Engine operating Limits Rate Horsepower (HP) 350 Rate Speed (RPM) 2575 Cyl. Heat Temperature F° 475 Oil Temperature F° Minimum (Red Line) 120 Maximum (Red Line) 245 Oil Pressure (PSI) Minimum (Red Line) 25 Maximum (Red Line) 100 2.- Fuel (U.S. GAL) Tipo a Utilizar 100/130 Capacidad Total 246 Capacidad Utilizable 242 Presión Combustible (PSI) Mínima 34 Máxima 55 5.- Maneuver Limits (Normal Category) MANEUVER ENTRY SPEED Spins No approved 2 B.- Emergencies Procedures 1.- ENGINE FAILURE DURING NORMAL TAKEOFF (83 KIAS or below) a.- If Sufficient runway remains for a safe stop: Throttle : CLOSE Brakes : AS REQUIRED Stop Straight Ahead b.- If Insufficient runway remains for a safe stop: Throttle : CLOSE Mixture : OFF Master Switch : OFF Fuel Selector : OFF Magnetos Switches : OFF Maintain directional control and maneuver to avoid obstacles. 2.- ENGINE FAILURE DURING NORMAL TAKEOFF (above 83 KIAS) Directional Control : MANTAIN Power (Oper. Engine) : MAX. CONTINUOUS Propeller Control (Inop. E.) : FEATHER Landing Gear : UP Bank : 5° INTO OP. E. Airspeed : ACCLERATE TO 88 Kias Cowl Flaps (Inop. Eng.) : CLOSE Airspeed : 106 Kias AFTER OBSTACLES CLEARED Engine Securing Procedures : COMPLETE Land as soon as practical at the nearest suitable. 3 3.- ENGINE FAILURE DURING FLIGHT (ABOVE 78 KIAS) Inoperative engine : IDENTIFY Operative engine : ADJUST AS REQUIRED Airspeed : ABOVE 106 KIAS Before securing inoperative engine: Fuel Flow : CHECK (IF DEFICIENT EM. FUEL PUMP ON) Fuel Quantity : CHECK Fuel Selector (inop. Eng.) : CHANGE Oil pressure and temperature : CHECK Magneto switches : CHECK Air Start : ATTEMP If engine does not start, complete Engine Securing Procedure 4.- ENGINE FEATHERING PROCEDURE Throttle : CLOSE Propeller (1000 RPM Min) : FEATHER Mixture : MIXTURE Cowl Flap : OFF Air Conditioner : OFF 4 5.- ENGINE FIRE ON GROUND Firewall Fuel Shutoff : OFF Emergency Fuel Pump : OFF Boost Pump CB : PULLED Brakes : AS REQUIRED Throttle (affect engine) : OPEN Radio : CALL FOR ASSISTANCE Mixture (if fire persists) : IDLE CUT OFF External fire extinguisher : USE If fire continues, shutdown both engines and evacuate. If fire is on the ground, it may be possible to taxi away. 6.- ENGINE FIRE IN FLIGHT Throttle : IDLE Mixture : OFF Firewall Fuel Shutoff : OFF Engine : COMPLETE SECURING PROCEDURES If fire persists: Airspeed : INCREASE Land at nearest suitable airport.