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ORDERING REPLACEMENT PARTS

Replacement parts for the Great Planes YAK 55 EP w/FlightFlex are available using the order numbers in the Replacement
Parts List 
that follows. The fastest, most economical service can be provided by your hobby dealer or mail-order company.

To locate a hobby dealer, visit the Hobbico web site at www.hobbico.com. Choose “Where to Buy” at the bottom of the
menu on the left side of the page. Follow the instructions provided on the page to locate a U.S., Canadian or International
dealer. If a hobby shop is not available, replacement parts may also be ordered from Tower Hobbies

®

at

www.towerhobbies.com, or by calling toll free (800) 637-6050.

Parts may also be ordered directly from Hobby Services by calling (217) 398-0007, or via facsimile at (217) 398-7721, but
full retail prices and shipping and handling charges will apply. Illinois and Nevada residents will also be charged sales tax.
If ordering via fax, include a Visa

®

or MasterCard

®

number and expiration date for payment.

Mail parts orders and payments by personal check to:

Hobby Services

3002 N Apollo Drive, Suite 1

Champaign IL  61822

Be certain to specify the order number exactly as listed in the Replacement Parts List. Payment by credit card or personal
check only; no C.O.D.

If additional assistance is required for any reason contact Product Support by e-mail at [email protected], or
by telephone at (217) 398-8970.

Because the Yak 55 is built as a one-piece airframe, there are no replacement airframe parts available. Replacements for
small parts are available.

REPLACEMENT PARTS LIST

ORDER NUMBER

DESCRIPTION

HOW TO PURCHASE

GPMG0215.....................................GEAR DRIVE.................................Hobby Supplier
GPMG0860...............REPLACEMENT SHAFT W/SPUR GEAR...........Hobby Supplier
GPMG0239 ....................................PINION GEAR ................................Hobby Supplier
GPMG0311 ...........................REPLACEMENT MOTOR .......................Hobby Supplier

GPMA2786 ..............................11 X 4.7 PROPELLER..........................Hobby Supplier

GPMQ4620 ....................................PROP SAVER ................................Hobby Supplier

GPMA2785 .................................HARDWARE BAG .............................Hobby Supplier

GPMG0216....................MOTOR/GEAR DRIVE ASSEMBLY................Hobby Supplier

GPMA2743...........................................COWL.......................................Hobby Supplier
GPMA2740 ...........................................WING .......................................Hobby Supplier
GPMA2741 ......................................FUSELAGE ..................................Hobby Supplier
GPMA2742 ........................................TAIL SET ....................................Hobby Supplier

Missing pieces....................Contact Product Support

Instruction manual.................Contact Product Support

Full-size plans .............................Not available

Summary of Contents for YAK 55

Page 1: ...unused condition to the place of purchase To make a warranty claim send the defective part or item to Hobby Services at the address below Hobby Services 3002 N Apollo Dr Suite 1 Champaign IL 61822 USA...

Page 2: ...obably be making some repairs To minimize damage cut the throttle before impact if possible Take care to build straight and true as you complete the airplane Misaligned parts will hurt the airplane s...

Page 3: ...art numbers are included in parentheses 4 channel radio minimum for maximum 3D performance a computer radio with mixing is recommended 4 sub micro servos 0 3 oz 9g or less each FUTM0042 Micro receiver...

Page 4: ...llimeters multiply inches by 25 4 25 4mm 1 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 modi...

Page 5: ...ct Support 3002 N Apollo Drive Suite 1 Champaign IL 61822 Telephone 217 398 8970 ext 5 Fax 217 398 7721 E mail airsupport greatplanes com KIT INSPECTION 1 Fuselage 2 Cowl 3 Elevator joiner tube 4 Prop...

Page 6: ...Mail parts orders and payments by personal check to Hobby Services 3002 N Apollo Drive Suite 1 Champaign IL 61822 Be certain to specify the order number exactly as listed in the Replacement Parts Lis...

Page 7: ...l not to flex the fuselage as you make your measurements 4 When you are satisfied with the alignment of the wing glue it in place with hot melt glue 5 Use hot melt glue to secure four hinges in the pr...

Page 8: ...are glued in place 9 Use a hobby knife to clean any excess glue from the hinges 10 Slide the 3mm 1 8 carbon elevator joiner tube into the plastic tubes on the stabilizer Make sure it is centered 11 R...

Page 9: ...utout in the fuselage with hot melt glue Both servos should have their output shafts toward the front of the airplane and the lower servo should project out the left side of the plane while the upper...

Page 10: ...ame procedure 12 Install control horns in the underside of the ailerons using the same procedure 13 If necessary remove the servo arms from all of your servos Find 4 long output arms with the spline s...

Page 11: ...ailerons are in the neutral position This will create a small amount of aileron differential 18 Check that all of the servo arm screws are installed in the servos 1 Pull the ESC output wires forward...

Page 12: ...behind the battery using hook and loop fastener Run the antenna out the back of the zippered fuselage opening Use a pin to puncture two holes 1 2 12mm apart in the vertical fin Stick the receiver ante...

Page 13: ...Once you have determined the amount of weight required it can be permanently attached IMPORTANT If you found it necessary to add any weight recheck the C G after the weight has been permanently insta...

Page 14: ...your face and body as well as all spectators away from the plane of rotation of the propeller whenever the battery is connected Keep these items away from the prop loose clothing shirt sleeves ties s...

Page 15: ...your name address AMA number and telephone number on or inside your model 11 If you wish to photograph your model do so before your first flight 12 Range check your radio when you get to the flying fi...

Page 16: ...o maintain your glide path and airspeed If you are going to overshoot smoothly advance the throttle always ready on the right rudder to counteract torque and climb out to make another attempt When you...

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