Seagull Models SEA53A_1 YAK 54 Assembly Manual Download Page 12 | Manualshive

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YAK 54.

Instruction Manual.

12

Repeat the procedure for the other
wing.

!

2) Thread the screw (insert the aluminium

washer) into the hole from the top of surface.
Wipe away any excess epoxy on the wing and
screw with rubbing alcohol and a paper towel.
Screw the M3 nut (insert the aluminium
washer) in place as shown. Alllow the epoxy
to fully cure.

Aluminium washer.

M3 nut.

M3 lock nut.

Wing bottom.

M3 control horn.

Wing bottom.

Aileron control horn.

Right side.

Elevator control horn.

ELEVATOR CONTROL HORN INSTALLATION.

!

1) Elevator control horn:

Mix a small amount of 30 minute epoxy and
lightly coat the inside of the hole in the elevator
and the 3x40mm control horn screw.

!

2) Thread the screw (insert the aluminium

washer) into the hole from the top of surface.
Wipe away any excess epoxy on the fin and
screw with rubbing alcohol and a paper towel.
Screw the M3 nut (insert the aluminium
washer) in place as shown. Alllow the epoxy
to fully cure.

Repeat the procedure for orther
elevator.

Horizontal fin.

Elevator

.

75mm.

ELEVATOR PUSHROD INSTALLATION.

C/A glue.

Elevator pushrods assembly follow pictures

below.

AILERON CONTROL HORN INSTALLATION

2 sets.

3x45mm.

!

1) Aileron control horn:

Mix a small amount of 30 minute epoxy and
lightly coat the inside of the hole in the aileron
and the control horn screw.

Wing.

Aileron.

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Summary of Contents for SEA53A_1 YAK 54

Page 1: ...y stepAssemblyManual Made in Vietnam Specifications Wingspan 63 4in 161cm Wingarea 846sq in 54 6sq dm Weight 8 4 9 9lbs 3 8 4 5kg Length 61 4in 156cm Recommendedenginesize 91 1 25cu in 2 4stroke Radio System required 6 channel with 6 digital servos Flyingskilllevel __ Intermediate advanced ASSEMBLY MANUAL ...

Page 2: ...ced with basic R C flight we strongly recommend you contact your R C supplier and join your local R C Model Flying Club R C Model Flying Clubs offer a variety of training procedures designed to help the new pilot on his way to successful R C flight They will also be able to advise on any insurance and safety regulations that may apply ADDITIONAL ITEMS REQUIRED 91 1 25 2 4 stroke engine Computer ra...

Page 3: ...it and are aligned properly before gluing This will ensure proper as sembly as the YAK 54 is made from natural materials and minor adjust ments may have to be made The paint and plastic parts used in this kit are fuel proof However they are not tolerant of many harsh chemi cals including the following paint thinner cyano acrylate glue accel erator cyanoacrylategluede bonder and acetone Do not let ...

Page 4: ...only a slight gap The hinge is now centered on the wing panel and aileron Remove the T pins and snug the aileron against the wing panel A gap of 1 64 or less should be maintained between the wing panel and aileron 4 Deflect the aileron and completely saturate each hinge with thin C A glue The ailerons front surface should lightly contact the wing during this procedure Ideally when the 5 Turn the w...

Page 5: ...mulated on the wing or in the aileron hinge area C A glue HINGING THE RUDDER Glue the elevator hinges in place using the same tectniques used to hinge the ailerons Glue the rudder hinges in place using the same tectniques used to hinge the ailerons Because the size of servos differ you may need to adjust the size of the precut open ing in the mount The notch in the sides of the mount allow the ser...

Page 6: ...ad Tape the servo lead to the wing to prevent it from falling back into the wing Wing bottom Thread Small weight Electric wire Thread Repeat the procedure for orther wing haft Secure the servos with the screws pro vided with your radio system Wing panel bottom Thread Electric wire Pull Plastic tape Aileron electric Wing bottom ENGINE MOUNT See pictures below Mark and drill 4 holes for engine mount...

Page 7: ...ould rest just below the top surface of the tank It should not touch the top of the tank 4 Test fit the stopper assembly into the tank It may be necessary to remove some of the flashing around the tank opening using a modeling knife If flashing is present make sure none falls into the tank 5 With the stopper assembly in place the weighted pick up should rest away from the rear of the tank and move...

Page 8: ... Locate and cut out the covering film from the servo holes in both sides of fuselage 2 Install the rubber grommets and brass collets onto the elevator servo Test fit the servo into the elevator servo mount Because the size of servos differ you may need to adjust the size of the precut open ing in the mount The notch in the sides of the mount allow the servo lead to pass through C A glue Rudder ser...

Page 9: ...rline of the horizontal stabilizer at the trail ing edge and place a mark Use a triangle and extend this mark from back to front across the top of the stabilizer Also extend this mark down the back of the trailing edge of the stabilizer Center line Switch 3 Slide the stabilizer into place in the pre cut slot in the rear of the fuselage The stabi lizer should be pushed firmly against the front of t...

Page 10: ...hat everything is aligned correctly mix up a generous amount of 30 Minute Epoxy Apply a thin layer to the top and bottom of the stabilizer mounting area and to the stabilizer mounting platform sides 5 Remove the stabilizer Using the lines you just drew as a guide carefully remove the covering from between them using a model ing knife When cutting through the covering to remove it cut with only eno...

Page 11: ...des and bottom of the vertical stabilizer mounting area Apply epoxy to the bottom and top edges 4 Remove the stabilizer Using a mod eling knife remove the covering from below the lines you drew When cutting through the covering to re move it cut with only enough pressure to only cut through the covering itself Cutting into the balsa structure may weaken it 5 Slide the vertical stabilizer back in p...

Page 12: ...ount of 30 minute epoxy and lightly coat the inside of the hole in the elevator and the 3x40mm control horn screw 2 Thread the screw insert the aluminium washer into the hole from the top of surface Wipe away any excess epoxy on the fin and screw with rubbing alcohol and a paper towel Screw the M3 nut insert the aluminium washer in place as shown Alllow the epoxy to fully cure Repeat the procedure...

Page 13: ...e servo arm to the servo using the screw provided with the servo Repeat the procedure for orther elevator Pushrod 80mm Rudder control horn 3x30mm 2x20mm 3 Position the rudder horn on the both side of rudder The clevis attach ment holes should be positioned over the hinge line 5 Mount the control horns by inserting the bolts through the control horn bases and elevator halves then into the mounting ...

Page 14: ...operation of the rudder Adjust the cables so when the rudder servo is centered the rudder is centered as well There will be tension on the cables Adjustments can be made at the rudder control horn and at the servo arm Once adjustments are made secure the servo arm to the rudder arm servo using the screw that came with the servo RUDDER PULL PULL CABLE SYSTEM See pictures below M3 lock nut 1 Insert ...

Page 15: ...l Caution when cutting the axles wear protective goggles 52mm Wheel Collar Axle Wheel Nut Wheel Pant Landing Gear Nut Plywood Washer Plywood Washer lite plywood block 4 A drop of C A glue on the wheel collar screws will help keep them from coming lose during operation Repeat the process for the other wheel ...

Page 16: ...efore proceeding 140mm 4x30mm Engine 91 2 stroke 2 Place your engine onto the engine mount Adjust the engine is centered of the edges of the engine case 3 When you are satisfied with the align ment mark the locations of the engine mounting MOUNTING THE ENGINE 1 Install the pushrod housing through the predrilled hole in the firewall and into the servo compartment The pushrod housing should protrude...

Page 17: ...uide 1mm drill bit Paper tape guide Trim and cut Mark point COWLING 1 Slide the fiberglass cowl over the en gine and line up the back edge of the cowl with the marks you made on the fuselage then trim and cut Paper tape guide Pushrod wire 4x30mm Pushrod wire Trim and cut ...

Page 18: ... 3mmx10mm screws 4 2 While keeping the back edge of the cowl flush with the marks align the front of the cowl with the crankshaft of the engine The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Use the spinner backplate as a guide Hold the cowl firmly in place using pieces of masking tape Because of the size of the cowl it may be necessary to ...

Page 19: ...els com 19 62cm Aluminium strap 3x10mm 2 Plastic clip 1 2 1 33mm MOUNTING THE TAIL WHEEL 1 You have to trim each axles and using a tool cutting and cut off wheel Caution when cutting the axles wear protective goggles ...

Page 20: ...rews Remove the tail wheel bracket and tiller and drill 1mm pilot holes at the locations marked 2 Install the rubber grommets and brass collets onto the throttle servo Test fit the servo into the throttle servo mount 4 Secure the tail wheel bracket in place using two 3x25mm wood screws Be careful not to overtighten the screws THROTTLE SERVO ARM INSTALLATION 1 Install adjustable servo connector in ...

Page 21: ...e protective foam rubber to protect them from vibration INSTALLING THE BATTERY RECEIVER Throttle 3 Route the antenna in the antenna tube inside the fuselage and secure it to the bot tom of fuselage using a plastic tape See pic ture below Antenna Antenna wire Tie wrap Receiver Insert two wing panels as pictures below ATTACHMENT WING FUSELAGE Attach the aluminium tube into fuselage ...

Page 22: ...is is not possible or does not correct it stick small amounts of lead weight on the fuselage 3 When the elevator rudder and aileron control surfaces are centered use a ruler and check the amount of the control throw in each surface The control throws should be measured at the widest point of each sur face sides under the horizontal stabilizer If the tail of the plane falls the plane is tail heavy ...

Page 23: ...right The right aileron should move up and the other aileron should move down If it does not flip the servo reversing switch on your transmitter to change the direction 5 If your radio transmitter is equipped with dual rate switches double check that they are on the low rate setting for your first few flights 6 Check to ensure the control surfaces are moving the proper amount for both low and high...

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