Aviation Models 37.5% Yak 54 Assembly Manual Download Page 1

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Aviation Models

37.5% YAK 54 Assembly Manual

For assistance contact :

Aviation Models
25022 104th Ave SE, Suite E
Kent, WA 98030

Product Information:

1-253-332-0786

Ordering Hotline:

1-866-877-8621

Second edition rev. 5.12.28

please report errors to [email protected]

Summary of Contents for 37.5% Yak 54

Page 1: ...ce contact Aviation Models 25022 104th Ave SE Suite E Kent WA 98030 Product Information 1 253 332 0786 Ordering Hotline 1 866 877 8621 Copyright 2005 by Aviation Models Inc All rights reserved Second...

Page 2: ...ser 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...

Page 3: ...d covered almost ready to fly ARF model airplanes available on today s market If you have any questions about your new plane assembly manual or hardware feel free to call our Product Enquiry telephone...

Page 4: ...3 Install the main landing gear Wheel Pants 16 Install the elevator servos 17 Rudder Installation 19 Tailwheel Assembly 20 Mount the rudder servo and linkage 20 Mount the horizontal stabilizers 21 Mou...

Page 5: ...r sockets Check everything for shipping damage and or manufacturing defects If there is a problem report it to us NOW not after you start building the plane Read the quick start guide at the end of th...

Page 6: ...mportant that the glue sticks to the wood and not to the covering Lightweight landing gear and wing tube In the 37 5 YAK we have tried to provide as much flexibility as possible with regard to engine...

Page 7: ...edges Install the servo with four servo screws 3 Locate the aluminum arm pro vided in your hardware package After installing your servo into the servo bays apply power to the servo and make sure they...

Page 8: ...rms for added strength If after market arms are used they should be 1 1 2 long Once the four holes are drilled install the metal arm to the wheel using four 2x10mm bolts Use a clamp to help hold the c...

Page 9: ...nge knuckle so there is no large gap between sur faces The hinge lines are beveled The point of the bevel should be at the center of the hinge pin this assures that the hinges are aligned and cen tere...

Page 10: ...es securely using the glue you prefer I have had good success with Pro bond polyurethane not the pro bond yellow furniture glue because when drying it foams up slightly and fills the gaps between the...

Page 11: ...t remove the wire but be sure the wire can t fall out in flight Repeat this on both eleva tors and both ailerons For the rudder you may wish to wait until later to do the final installation of the rud...

Page 12: ...to use a matchbox or other equalizing device so that there is no binding in the servos If such a device is not used extreme care must be taken to me chanically match and adjust servo and linkage geom...

Page 13: ...the plane Use the four 1 4x20 bolts pro vided to mount the gear to the gear plate Back the bolt from the inside with the four lock nuts provided as well The bolts come through the canister tunnel You...

Page 14: ...old the wheel pant and drill the center hole through the landing gear Take a smaller drill bit and drill through the holes in the landing gear Then place blind nuts on the inside of the wheel pant Whe...

Page 15: ...l inside the pant and tighten the nut on the inside of the wheel pant Use the provided wheel collars to secure the wheel pant Use the provided bolts to secure the wheel pant into place Tighten bolts i...

Page 16: ...the arm onto the servo You can now start to measure the length of your pushrods Drilling holes for the control horns Follow the same procedure as for the ailerons to mount your Eleva tor control horn...

Page 17: ...Make sure each servo is in center position with the control horn centered Hinging Rudder The rudder is removable and hinges need to be glued to the rudder first then to the vertical stab Dry fit rudde...

Page 18: ...g the non glued hinge half and lining the hinges up on a straight line Repeat gluing proc ess for the vertical stab Then push the two surfaces together to complete the hinging Rudder control horn Dril...

Page 19: ...xample of our installa tion Here is another picture of the tail wheel installation Rudder Cable Take a straight edge and mark where the rudder cable will touch the fuse side You are looking for a stra...

Page 20: ...ser vos you will need If you decide to run more than two simply extend the mount and run them inline ganging them together Make sure that the distance from each cable at the mounting point is the same...

Page 21: ...l when viewed from the rear of the plane Because the engine is a very tight fit in the cowl a good method of making sure the engine is cen tered in the cowl is to after the firewall is secured stand t...

Page 22: ...o mount on the motor box so that there is alignment for di rect linkage to the carburetor If using headers and cans be sure that servo is a safe distance from either and will not get damaged by heat E...

Page 23: ...attachment Slide the wings onto the tube and into the pockets in the fuse lage Now take the 1 4x20 nylon bolts provided and thread them into the wing root Make sure you have two bolts per wing as well...

Page 24: ...o far back the model can become unstable Control Throws Here are some starting points for the control throws Do not use the 3d settings until you are thoroughly familiar with the plane on low rates Th...

Page 25: ...s are intended only for extreme aerobatics If you are in doubt about your skills ask a skilled aerobatic pilot to help you with a trainer cord Thanks for Purchasing our 37 5 Yak 54 We hope it provides...