Great-planes Yak-55M 50-55cc Sport / 3D ARF - GPMA1230 Manuel d'utilisateur

INSTRUCTIONMANUALChampaign, Illinois(217) 398-8970, Ext [email protected] Contents © 2010 GPMA1230 MnlREAD THROUGH THIS MANUAL BEFORE

10❏ ❏ 2. To achieve proper elevator control you will need to use a 1-1/2" heavy duty servo arm. We used the Futaba aluminum arm (FUTM2118). Enlar

11Hinge Line Hinge LineCORRECT INCORRECTHi❏❏9. Using the pushrod wire as a guide, locate the plywood plate in the elevator servo. Position the large n

12Install the Rudder❏ 1. Without using any glue, install four hinges into the holes in the trailing edge of the rudder. Note that the pivot point of e

13❏ ❏ 3. Position the aluminum servo arm on top of the disk. Drill a 3/32" [2.4mm] hole through the aluminum arm and through the disk. Do this fo

14DOUBLE SERVO INSTALLATION❏ ❏ 1. For the dual rudder servo arm installations you will need two of the aluminum servo arms included in the kit and two

15❏ ❏ 8. Use pliers to pull the cable from the fi rst loop to reduce the size of the second loop. Squeeze the swage with pliers and then cut off the ex

16you drilled. (13/64 [5.2mm] is required as a clearance hole for a 10-24 bolt. If you are mounting a different engine, be sure to check the size of t

171" [25mm] on one end of each of the tubes with 200 grit sandpaper. Insert the tubes into the hole you drilled in the fi rewall. Be sure to inser

18end of all three tubes. Insert the tubes into the stopper with the metal plates, and then solder a barb onto the other end of the two short tubes. B

19Pitts Style Muffler Installation❏ 1. Remove the two covers from the bottom of the fuselage. If you will be using the muffl er that came with your eng

2INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Academy of Model Aeronautics . . . . . . . . . . . . . . . . . .2 In

20❏ 4. Gather all of the canister components together. Test fi t the canister to the holders. The taller of the plywood holders should be at the front

21Tuned Pipe Installation❏ 1. Remove all of the covers from the bottom of the fuselage. Glue the balsa fl oor and side walls in place in the back of th

22❏ 3. Install the cowl onto the fuselage. The cowl should over lap the fi rewall approximately 1/8" [3.2mm]. Using the lines you drew on the bloc

23satisfi ed, permanently glue the dummy engine to the cowl. The dummy engine needs to be glued to the cowl with a mixture of 5-minute epoxy and micro

24❏ ❏ 6. At the rear of the fuselage you will fi nd two small pilot holes. Drill a 3/32" [2.4mm] hole through the two holes. Insert and then remov

25part on top of them as shown. Drill a 1/16" [1.6mm] hole through the holes in each corner of the top piece and into each of the blocks. Insert

26❏ 4. Attach the canopy hatch to the top of the fuselage with four 4-40 x 3/4" [19mm] screws, #4 lock washers and #4 fl at washers. Test fi t the

27GET THE MODEL READY TO FLYCheck the Control Directions❏ 1. Turn on the transmitter and receiver and center the trims. If necessary, remove the servo

28ACCEPTABLE PUSHROD HOOKUPMove the pushrod farther outon the servo arm……But leave the pushrod in the farthest outlocation on the control horn.If the

29❏ 4. IMPORTANT: If you found it necessary to add any weight, recheck the C.G. after the weight has been installed.Balance the Model Laterally❏ 1. Wi

3SAFETY PRECAUTIONSProtect Your Model, Yourself & Others …Follow These Important Safety Precautions 1. Your Yak-55M should not be considered a to

30Make all engine adjustments from behind the rotating propeller.The engine gets hot! Do not touch it during or right after operation. Make sure fuel

31❏ 19. Cycle your receiver battery pack (if necessary) and make sure it is fully charged.❏ 20. If you wish to photograph your model, do so before you

32FlightFor reassurance and to keep an eye on other traffi c, it is a good idea to have an assistant on the fl ight line with you. Tell him to remind yo

4Muffler RecommendationsThis airplane has been designed to accommodate a wide variety of muffl er confi gurations. The stock muffl er and Pitts style muf

5● The Yak-55M is factory-covered with Top Flite® MonoKote® fi lm. Should repairs ever be required, MonoKote can be patched with additional MonoKote p

6ORDERING REPLACEMENT PARTSReplacement parts for the Great Planes Yak-55M ARF are available using the order numbers in the Replacement Parts List that

7❏ ❏ 2. Inside the aileron servo compartment you will fi nd a string. Tie the string to the servo lead. The other end of the string is taped to the roo

84-40 BoltBall Swivel4-40 Nut4-40 NutBrass Bushing❏ ❏ 7. Locate all of the components shown in the picture, a 4-40 x 5 3/4" [146mm] pushrod wire

9❏ ❏ 10. Glue a 5/16" x 1" [7.9mm x 25mm] wood dowel into the two outermost holes in the wing root. The dowel should extend out of the wing