GREAT PLANES Extra 300S ARF User Manual

WARRANTY
Great Planes
®
Model Manufacturing Co. guarantees this kit to be free from defects in both material and workmanship at the date of purchase.
This warranty does not cover any component parts damaged by use or modification. In no case shall Great Planes’ liability exceed the
original cost of the purchased kit. Further, Great Planes reserves the right to change or modify this warranty without notice.
In that Great Planes has no control over the final assembly or material used for final assembly, no liability shall be assumed nor accepted for
any damage resulting from the use by the user of the final user-assembled product. By the act of using the user-assembled product, the user
accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to return this kit
immediately in new and unused condition to the place of purchase.
READ THROUGH THIS MANUAL BEFORE STARTING
CONSTRUCTION. IT CONTAINS IMPORTANT
INSTRUCTIONS AND WARNINGS CONCERNING
THE ASSEMBLY AND USE OF THIS MODEL.
GPMZ0216 for GPMA1305 V1.0 Entire Contents © Copyright 2002
1610 Interstate Drive Champaign, IL 61822
(217) 398-8970, Ext. 2
airsupport@greatplanes.com
INSTRUCTION MANUAL
Wingspan: 78.5 in [1995mm]
Wing Area: 1180 sq in [76 dm
2
]
Weight: 14.25 – 16.5 lb [6500g – 7500g]
Wing Loading: 27.8 oz/sq ft [85g/dm
2
]
Length: 70 in [1780mm]
Radio: 4-channel minimum (7 to 8 servos)
Engine: 1.60 to 2.10 cu in [25 to 35cc] 2-stroke,
2.00 to 3.00 cu in [33 to 50cc] 4-stroke,
2.5 to 3.8 cu in [41 to 65cc] Gas

GREAT PLANES Extra 300S ARF Specifications

General

Construction	Balsa and plywood
Skill Level	Intermediate
ARF	Almost Ready to Fly
Recommended Engine	.46-.55 cu in (7.5-9.0 cc) 2-stroke OR .70 cu in (11.5 cc) 4-stroke
Radio System	4-channel
Covering	MonoKote

Summary

Safety Precautions

Introduction

IMAA

Organization promoting giant-scale flying events.

Scale Competition

Eligibility for AMA Fun Scale competition for giant-scale models.

Decisions You Must Make Before Beginning to Build

Radio Equipment

Details on required radio systems and servo recommendations.

Engine Recommendations

Recommended engine sizes for sport and 3D flying.

Additional Items Required

Hardware & Accessories

List of necessary hardware and accessories for kit completion.

Glow Engine Requirements

Specific items needed for installing a glow engine.

Gas Engine Requirements

Specific items needed for installing a gas engine.

Important Building Notes

Ordering Replacement Parts

Replacement Parts List

List of available replacement parts and how to purchase them.

Kit Contents

Kit Contents (Photographed)

Visual inventory of all parts included in the kit.

Kit Contents (Not Photographed)

List of all parts included in the kit, not visually shown.

Building Instructions

Preparations

Initial steps including unpacking, inspection, and preparation.

Assemble the Wing

Instructions for assembling the aircraft's wing structure.

Assemble the Fuselage

Instructions for assembling the main body of the aircraft.

Install the Engine

Steps for mounting and installing the engine.

Install the Cowl

Instructions for fitting and securing the engine cowl.

Install the Tail Surfaces

Steps for attaching the horizontal and vertical stabilizers.

Install the Landing Gear

Instructions for mounting the main and tail landing gear.

Get the Model Ready to Fly

Check the Control Directions

Verifying correct response and centering of control surfaces.

Set the Control Throws

Setting specified control surface throws for optimal flight.

Balance the Model (C.G.)

Determining and adjusting the Center of Gravity for proper balance.

Balance the Propellers

Ground Check

Range Check

Engine Safety Precautions

AMA Safety Code (excerpt)

IMAA Safety Code (excerpt)

Check List

Flying

Fuel Mixture Adjustments

Adjusting fuel mixture for optimal engine performance and cooling.

Takeoff

Procedure for taking off the model from the runway.

Flight

Guidance for flying the model and making initial trim adjustments.

Landing

Instructions for executing a safe landing approach.

Performance Settings for the Extra 300S ARF

3D Control Throws

3D Servo Arms

Servos

Appendix

Flight Trimming

Detailed guide for adjusting flight characteristics and trim.

Building Notes

Flight Log