Great Planes GPMA1101 User Manual

INSTRUCTION MANUAL

Wingspan: 47 in [1195mm]

Wing Area: 264 sq in [17 dm²] Weight: .75 lbs [340 g]

Wing Loading: 7 oz/sq ft [22 g/dm²]

Length: 26 in [660mm]

Radio: 3-channel with 8-cell 2/3AA NiCD airborne pack, 2 micro servos

Motor: 280 with Gear Drive and Electronic Speed Control (ESC) CG: 1-3/4" [45mm] back from leading edge with a range of

1-1/2" [38mm] to 2" [51mm]

Throws: Elevator	1/2" up	1/2" down
Rudder	1" up	1" down

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 WARNINGS AND INSTRUCTIONS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.

Champaign, Illinois

[phone], Ext 5 [e-mail]

© Copyright 2003, Printed in Thailand

GPMZ0218 for GPMA1101 V1.0

TABLE OF CONTENTS
INTRODUCTION ................................................................	2
SAFETY PRECAUTIONS ..................................................	2
ADDITIONAL ITEMS REQUIRED .....................................	3
Radio Equipment................................................................	3
Speed Control ....................................................................	3
Motor System .....................................................................	3
Battery Recommendations.................................................	3
Chargers.............................................................................	3
Adhesives and Building Supplies .......................................	4
Covering Accessories.........................................................	4
Optional Supplies and Tools...............................................	4
IMPORTANT BUILDING NOTES.......................................	4
KIT INSPECTION...............................................................	5
ORDERING REPLACEMENT PARTS...............................	5
BUILDING INSTRUCTIONS ..............................................	6
Assemble the Wing ............................................................	6
Assemble the Tail ...............................................................	6
Install the Canopy and Main Gear .....................................	9
Install the Servos and Pushrods ........................................	9
Install the Motor................................................................	10
Complete Final Radio Installation ....................................	11
GET THE MODEL READY TO FLY..................................	11
Check the Control Directions ...........................................	11
Set the Control Throws.....................................................	11
Balance the Model (C.G.).................................................	12
Balance the Model Laterally.............................................	12
PREFLIGHT .....................................................................	12
Identify Your Model ...........................................................	12
Charge the Batteries ........................................................	12
Balance Propellers ...........................................................	13
Ground Check ..................................................................	13
Range Check....................................................................	13
MOTOR SAFETY PRECAUTIONS ..................................	13
AMA SAFETY CODE ......................................................	13
CHECK LIST....................................................................	14
FLYING.............................................................................	14
Takeoff ..............................................................................	15
Flight.................................................................................	15
Landing.............................................................................	15

INTRODUCTION

The Headwind B is a true park flyer trainer, able to fly in small areas (but not intended for indoor settings). It is a great first airplane, with 4-5 minute flight times on the stock motor package recommended, and climbs mildly with power for safety. However, please note that no R/C model is intended to be flown by a brand-new beginner without some assistance from an experienced pilot.

For the latest technical updates or manual corrections for the Headwind B, visit the web site listed below and select the Great Planes Headwind B. If there is new technical information or changes to this kit, a “tech notice” box will appear in the upper left corner of the page.

http://www.greatplanes.com/airplanes/index.html

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PROTECT YOUR MODEL, YOURSELF & OTHERS...FOLLOW THESE IMPORTANT SAFETY PRECAUTIONS

1.Your Headwind B should not be considered a toy, but rather a sophisticated, working model that functions very much like a full-size airplane. Because of its performance capabilities, the Headwind B, if not assembled and operated correctly, could possibly cause injury to yourself or spectators and damage to property.

2.You must assemble the model according to the instructions. Do not alter or modify the model, as doing so may result in an unsafe or unflyable model. In a few cases the instructions may differ slightly from the photos. In those instances the written instructions should be considered as correct.

3.You must take time to build straight, true and strong.

4.You must use an R/C radio system that is in first-class condition and a correctly sized motor and components (fuel tank, wheels, etc.) throughout the building process.

5.You must correctly install all R/C and other components so that the model operates correctly on the ground and in the air.

6.You must check the operation of the model before every flight to insure that all equipment is operating and that the model has remained structurally sound. Be sure to check clevises or other connectors often and replace them if they show any signs of wear or fatigue.

7.If you are not already an experienced R/C pilot, you should fly the model only with the help of a competent, experienced R/C pilot.

We, as the kit manufacturer, provide you with a top quality kit and instructions, but ultimately the quality and flyability of your finished model depends on how you build it; therefore, we cannot in any way guarantee the performance of your completed model and no representations are expressed or implied as to the performance or safety of your completed model.

Remember: Take your time and follow the instructions to end up with a well-built model that is straight and true.

If you have not flown R/C before, we recommend that you get the assistance of an experienced pilot in your R/C club for your first flights. If you're not a member of a club, your local hobby shop has information about clubs in your area whose membership includes experienced pilots.

In addition to joining an R/C club, we strongly recommend you join the AMA (Academy of Model Aeronautics). AMA membership is required to fly at AMA sanctioned clubs. There

are over 2,500 AMA chartered clubs across the country. Among other benefits, the AMA provides insurance to its members who fly at sanctioned sites and events. Additionally, training programs and instructors are available at AMA club sites to help you get started the right way. Contact the AMA at the address or toll-free phone number below:

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN 47302-9252

Tele. [phone]

Fax [phone]

Or via the Internet at: http://www.modelaircraft.org

ADDITIONAL ITEMS REQUIRED

This is the list of hardware and accessories required to finish the Headwind B. Order numbers are provided in parentheses.

Radio Equipment

The Headwind B requires a micro receiver and two micro servos. Futaba® S3103 (FUTM0037) or Hobbico® CS-5 (HCAM0090) micro servos are suitable.

Speed Control

An electronic speed control with BEC (Battery Eliminator Circuitry) is required. The BEC allows both the motor and the radio system to be powered by the same battery (thus eliminating an additional battery typically required to power the radio). The Great Planes ElectriFly™ C-5 Nano™ High Frequency Electronic Speed Control (GPMM2000) is recommended for the Headwind B. If you purchase the complete motor and gear drive system, the speed control is included (refer to the “Motor System” section that follows).

Motor System

The Headwind B is designed to use the Great Planes ElectriFly T-280GD ESC motor system and gear drive for electric flight (GPMG0430). This system includes a T-280 Ferrite Motor, S-280 4.1:1 ratio gearbox, 3mm prop adapter, APC 10 x 4.7 propeller and the ElectriFly C-5 Nano High Frequency Electronic Speed Control w/BEC. The same components are also available without the speed control by ordering number GPMG0445.

Battery Recommendations

There are mainly two kinds of battery packs used for electric R/C models; nickel-metal hydride (NiMh) packs and nickel-

cadmium (NiCd, pronounced ny-cad) packs. NiMh batteries are recommended for the Headwind B because they provide nearly twice the capacity of a NiCd for their size. However, it should be noted that nickel-metal hydrides cannot be charged as fast as NiCds.

Each individual cell that makes up a battery is 1.2 volts. Simply stated, a volt is the amount of power a battery pack can deliver (a 6-cell battery pack is 7.2 volts). Batteries are also rated by their capacity in mAh (milli-Amp-hours), or how much energy they store. A 550 mAh battery can supply 1 Ampere for .55 hours (about 30 minutes). A 1200 mAh battery pack is about twice the size of a 550 mAh battery pack.

These are the battery packs recommended for the Headwind B:

•Panasonic 6-cell 550 mAh NiMh pack (GPMP0100) for beginners due to its light weight.

•Panasonic 7-cell 550 mAh NiMh pack (GPMP0101) for advanced pilots who are capable of flying in slightly windier conditions.

•Panasonic 7-cell 1200 mAh NiMh (GPMP0300) for advanced pilots requiring the longest duration (not recommended for beginners due to the fact that it is heavier than the 550 mAh batteries).

Note: If flying the Headwind B at altitudes of 3,000 feet above sea level or higher, beginners should select the 7-cell 550 mAh battery pack, as the 6-cell pack may not provide adequate power.

Chargers

The best type of charger to use is a peak charger, because it charges the batteries until they are fully charged, then automatically switches to a trickle charge mode. The Great Planes ElectriFly Peak Charger (GPMM3000) is suitable for nickel-metal hydride batteries, NiCds and transmitter battery packs.

If you have another type of charger that is not a peak charger, you will have to calculate the length of time it takes to charge the batteries yourself, then turn the charger off when the batteries are fully charged. Overcharging the batteries may damage them. Before you can calculate the time it takes to charge a battery pack, you first have to know the charge rate you are going to use. Nickel-metal hydrides must be charged at a rate of no more than 1/10 of their capacity. For the 550 mAh batteries recommended for the Headwind B this would be a charge rate of approximately 50 mAh. Divide the capacity of the battery pack by the charge rate to calculate the charge time. A discharged 550 mAh battery pack charged at 50 mAh will take 11 hours to charge.

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Charge Rate/Time Recommendations:

•Charge the 6-cell 550 mAh battery pack at 50 mAh for 11 hours.

•Charge the 7-cell 550 mAh battery pack at 50 mAh for 11 hours.

•Charge the 7-cell 1200 mAh battery pack at 100 mAh for 12 hours.

IMPORTANT: Monitor the temperature of the battery frequently. If the battery becomes warm, disconnect it from the charger.

A Hobbico R/C Multi-Charger (HCAP0100) is suitable for charging the battery packs used in the Park Flyers.

Note: The period required to charge the batteries in the examples above is for discharged batteries. If the battery you are going to charge is not discharged (and you are not using a peak-charger), connect it to the motor on your model. Run the motor until the propeller is turning slowly, thus discharging the battery.

Adhesives and Building Supplies

In addition to common household tools and hobby tools, this is the “short list” of the most important items required to build the Headwind B. Great Planes Pro™ CA and Epoxy glue are recommended.

Hook & Loop Velcro® (GPMQ4480)

Hobby knife (HCAR0105)

#11 blades (HCAR0211)

Small T-pins (HCAR5100)

Top Flite® Panel Line Pen (TOPQ2510)

Electric drill and 1/16" [1.6mm] drill bit

Small Phillips and flat blade screwdrivers

Pliers with wire cutter (HCAR0630)

1/2 oz. Thin Pro™ CA (GPMR6001)

1/2 oz. Medium Pro CA+ (GPMR6007)

6-Minute Epoxy (GPMR6045)

Covering Accessories

Top Flite MonoKote® sealing iron (TOPR2100)

Top Flite MonoKote trim seal iron (TOPR2200)

Optional Supplies and Tools

Here is a list of optional tools mentioned in the manual that will help you build the Headwind B.

Great Planes CG Machine™ (GPMR2400)

Straightedge with scale (HCAR0475)

Masking Tape (TOPR8018)

CA accelerator (GPMR6034)

R/C-56 Canopy Glue (JOZR5007)

Epoxy Brushes (GPMR8060)

Mixing Sticks (GPMR8055)

Denatured Alcohol (for epoxy clean up)

Non-elastic monofilament or Kevlar fishing line (for stab alignment)

Builders Triangle Set (HCAR0480) (for fin alignment)

IMPORTANT BUILDING NOTES

•When you see the term test fit in the instructions, it means that you should first position the part on the assembly without using any glue, then slightly modify or custom fit the part as necessary for the best fit.

•Whenever the term glue is written you should rely upon your experience to decide what type of glue to use. When a specific type of adhesive works best for that step, the instructions will make a recommendation.

•Photos and sketches are placed before the step they refer to. Frequently you can study photos in following steps to get another view of the same parts.

•The Headwind B is factory-covered with Top Flite MonoKote film. Should repairs ever be required, MonoKote can be patched with additional MonoKote purchased separately. MonoKote is packaged in six-foot rolls, but some hobby shops also sell it by the foot. If only a small piece of MonoKote is needed for a minor patch, perhaps a fellow modeler would give you some. MonoKote is applied with a model airplane covering iron, but in an emergency a regular iron could be used. A roll of MonoKote includes full instructions for application. The Headwind B is covered in Transparent Green Monokote (TOPQ0306).

			Inch Scale																																					To convert inches to millimeters, multiply inches by 25.4
0"													1"																											2"																											3"																			4"																									5"																				6"																									7"
0		10											20												30						40									50												60						70									80							90												100									110							120									130							140													150								160									170								180
			Metric Scale

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KIT INSPECTION

Before starting to build, use the Kit Contents list to take an inventory of this kit to make sure it is complete and inspect the parts to make sure they are of acceptable quality. If any parts are missing or are not of acceptable quality, or if you need assistance with assembly, contact Great Planes Product Support. When reporting defective or missing parts, use the part names exactly as they are written in the Kit Contents list on this page.

3002 N. Apollo Drive, Suite 1

Champaign, IL 61822

Telephone: [phone]

Fax: [phone]

E-mail: [e-mail]

					Kit Contents (Photographed)
				1	Fuselage (w/windshield
					and outer pushrods)
				2	Horizontal tail
				3	Vertical tail
				4	Left wing
				5	Right wing
1	3			6	Wing joiner
				7	GP motor mount
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				8	GWS motor mount
				9	Main gear wire
				10	Main wheels
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	4				Kit Contents (Not Photographed)
				(2) Control horns
				(2) Clevises
10				(4) Wheel retainers
9				(1) Tail skid wire
	7			(1) Balsa main gear block
	8			(1) Plastic wing TE support
	6			(1) Bag small rubber bands (battery)
				(1) Bag large rubber bands (wing)
				(2) Pushrod wires

ORDERING REPLACEMENT PARTS

To order replacement parts for the Great Planes Headwind B, use the order numbers in the Replacement Parts List that follows. Replacement parts are available only as listed. Not all parts are available separately (an aileron cannot be purchased separately, but is only available with the wing kit). Replacement parts are not available from Product Support, but can be purchased from hobby shops or mail order/Internet order firms. Hardware items (screws, nuts, bolts) are also available from these outlets. If you need assistance locating a dealer to purchase parts, visit www.greatplanes.com and click on “Where to Buy.” If this kit is missing parts, contactGreat Planes Product Support.

	Replacement Parts List
Order Number	Description	How to Purchase
	Missing pieces ................................................	Contact Product Support
	Instruction manual...........................................	Contact Product Support
	Full-size plans .................................................	Not available
	Kit parts listed below.......................................	Hobby Supplier
GPMA2570 ...........	Fuselage Set
GPMA2572 ...........	Wing Set
GPMA2574 ...........	Tail Set
GPMA2576 ...........	Landing Gear Set
GPMA2578 ...........	Windshield
GPMA2580 ...........	Hardware Pack
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