Hobby King YAK54 20CC EP User manual

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65" profile with 20cc engine
and EP instruction manual
Sbach 20cc YAK54 20CC EP
MXSR 20CC EDGE540 20CC EP

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Sbach 342 20CC
Color A - Thunderbolt
Color B - Orange
Color C - Light Green
Color P - Pink
Color Y - Yellow

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YAK54 20CC
Color A, B, C, D, E

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MXSR 20CC
EXTRA 330SC 20CC

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Caution!
1 You should not regard this plane as a toy!
2 To ensure safety, please read this instruction manual thoroughly
before assembly.
3 Building and operating a model plane requires diligent practice and
correct guidance. An inexperienced flyer can cause serious injury
and property damage.
4 Seek the assistance of an experienced RC pilot or model airplane
club for help with assembly, operation and maintenance to ensure
your flying experience is both enjoyable and safe.
5 Fly only in AMA (Academy of Model Aeronautics) approved areas.
Approved areas or areas approved by the Model Association of
your country.

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All the parts together

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Main Landing Gear and Tail Wheel Unit
1 Cut out the holes on the fuselage of both sides.
2 Gather the parts for the main landing gear.

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3 Use screw to connect the landing gear, wheel pant, nut and wheel
in turn, and finally use a lock nut to lock them.
Secure the nuts with Blue Loctite
4 Repeat the same on the other side of the landing gear.

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5 Use two screws to lock the two pieces of the landing gear to the fuselage

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Fuel Tank and Engine lnstallation
1 Cut out the holes for the

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2 Install the fuel tank and the fuel tubes as shown.
3 Fasten the fuel tank onto the fuselgae as shown.

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4 Please Be sure to Install this TRISTOCK on the engine mount using
EPOXY BEFORE
use, to reinforce
the engine mount.
5 Install the engine onto the fuselage

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6 Connect the fuel tube of the fuel tank to the engine.
7 Screw the throttle servo onto the fuselage.
Bent the pushrod or use ball links (not supplied),
and use it to connect the servo and the engine.

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Main Wings Installation
Parts for the main wings
1 Cut out the holes in the wings

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2 Insert the fiberglass control horn sheet into the aileron hole pre-cutted.
Use AB glue to glue it.
3 Screw the servo with 4 pieces self-tapping screw

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4 Install the ball links onto the servo arm and the control horn with
stainless push rod supplied.
5 Find out the slots for the aluminum sheet.

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6 Use screw to lock the aluminum sheet onto the wings
7 Repeat the same way on the other side of the wing

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8 Stick a velcro tie into the holes in the back of the wing as shown.
9 Stick the battery onto the white velcro tie.

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10 Find out the cover plate of this hole
11 Fix the plate onto the back of the wing by screws.
Repeat the same on the other side of the wing to install the receiver.

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12 Connect the wings by carbon fiber wing tubes.
Fix it onto the fuselage by screws supplied as shown.
Tail Part Installation
Stabilizer Installation
1 Remove the covering film at the postion for the stabilizer.