Hangar 9 Piper J-3 Cub 40 User Manual

Wingspan: ....................................... 80" (2032mm)
Fuselage length: ........................... 49.9" (1268mm)
Wing area: ........................ 919 sq. in. (59.3 sq dm)
ASSEMBLY MANUAL
Piper J-3 Cub 40
Weight: ............................ 6.75–7.5 lbs (3–3.4 kg)
Engine: ............ .36–.46 2-stroke, .56–.82 4-stroke
Radio: ................................. 4-channel w/ 5 servos
Specifications
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Hangar 9 Piper J-3 Cub 40 Specifications

General

Brand	Hangar 9
Model	Piper J-3 Cub 40
Category	Toy
Language	English

Summary

Safety Warnings

Critical Operational Safety Precautions

Provides crucial safety advice regarding the operation of the RC aircraft.

Section 1: Hinge Installation

Stabilizer and Elevator Hinging Process

Guides through the process of installing hinges on the stabilizer and elevator.

Section 1: Hinge Installation (Continued)

Hinge Break-in and Tail Gear Wire Prep

Covers breaking in hinges, checking security, and preparing the tail gear wire.

Tail Gear Bearing and Rudder Mounting Steps

Guides on installing the tail gear bearing and mounting the rudder.

Section 2: Engine Installation

Engine Mount and Throttle Pushrod Setup

Covers securing the engine mount, aligning the engine, and connecting the throttle pushrod.

Engine Mounting Hardware Procedures

Details the hardware and procedures for attaching the engine to the mount.

Section 2: Engine Installation (Continued)

Muffler and Fuel Tank Installation Steps

Covers attaching the muffler and installing the fuel tank and lines.

Engine Line Connections and 4-Stroke Options

Details connecting vent/clunk lines and options for 4-stroke engine linkage.

Section 3: Servo Installation (Aileron)

Aileron Servo Mounting and Hatch Preparation

Guides on preparing the wing, hatch, and mounting blocks for aileron servos.

Section 3: Servo Installation (Aileron) (Continued)

Servo Installation and Wire Extension Connection

Covers servo placement, securing, and connecting servo extensions.

Routing Servo Wires and Securing the Hatch

Details routing servo wires through the wing and securing the servo hatch.

Aileron Pushrod and Control Horn Attachment Steps

Final Aileron Pushrod Centering and Adjustment

Section 4: Servo Installation (Fuselage)

Fuselage Servo and Strut Mount Preparation

Section 4: Servo Installation (Fuselage) (Continued)

Fuselage Servo and Control Horn Mounting Steps

Rudder and Throttle Pushrod Linkage Adjustment

Elevator Pushrod Assembly and Dowel Grooving

Final Pushrod Assembly and Radio Equipment Install

Section 6: Landing Gear Installation

Wheel Assembly and Axle Preparation Procedures

Section 6: Landing Gear Installation (Continued)

Main Landing Gear and Tail Wheel Attachment

Section 7: Installing the Stabilizer

Stabilizer Mounting and Elevator Control Horns

Section 7: Installing the Stabilizer (Continued)

Elevator Pushrod and Brass Fitting Connections

Stabilizer Cable Attachment and Tensioning Steps

Section 8: Cowling Installation

Cowling Fitment and Crankshaft Alignment Steps

Section 8: Cowling Installation (Continued)

Final Cowling Securing and Propeller Attachment

Section 9: Wing Installation

Wing Strut Anchors and Bracket Mounting Steps

Strut Attachment to Wing Brackets Procedure

Section 9: Wing Installation (Continued)

Wing Strut Adjustment and Wing Tube Insertion

Final Wing Strut Tightening and Hatch Installation

Engine Adjusting and Control Throws

Engine Tuning and Break-in Procedures

Provides instructions for engine break-in and final adjustments for reliable operation.

Control Surface Throw Settings and Rates

Balancing and Preflight Checks

Center of Gravity Balancing Procedures

Explains how to achieve the correct Center of Gravity for optimal flight.

Radio System and Final Preflight Inspection Steps

Guides on radio checks, engine operation, and securing components before flight.

Radio Range Testing Procedure

Performing a Radio Range Check

Details the process for conducting a radio range check before flight.

AMA Safety Code: General and Radio Control

General Model Aircraft Safety Guidelines

Radio Control Operations Safety Regulations

AMA Safety Code: Site Rules and Racing