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FUN-50 

ARF 

ASSEMBLY MANUAL 

 
 
 

 

 
 
 

This Manuel is the sole property of Kangke Industrial USA, Inc. Reproducing any part without the 

consent of Kangke Industrial USA, Inc. is a lawful violation. 

 

Kangke Industrial USA, Inc.  65 East Jefryn Blvd.  Deer Park NY 11729 

http://www.kangkeusa.com

     E-mail: 

[email protected]

 

1-877-203-2377                           fax 1-631-274-3296 

 

Warranty: 

Kangke Industrial USA Inc. guarantees the kit to be free of defects in both material and workmanship at the date of 

purchase. This warranty does not cover any parts damaged by use or modifications. In no case shall Kangke Industrial’s liability exceed the 
purchase cost of this kit. Since Kangke Industrial has no control of final assembly and material used by user for final assembly, no liability 
shall be assumed or accepted for any damage resulting from the use by user of final user-assembled products. This kit has been flight test for 
normal use. If the plane will be used for extremely high stress flying, the modeler is responsible for reinforcing the high stress points. Inspect 
this kit immediately after receiving it, report any missing and damaged parts within 10 business days otherwise the claim may be denied. 

Summary of Contents for FUN-50

Page 1: ... does not cover any parts damaged by use or modifications In no case shall Kangke Industrial s liability exceed the purchase cost of this kit Since Kangke Industrial has no control of final assembly and material used by user for final assembly no liability shall be assumed or accepted for any damage resulting from the use by user of final user assembled products This kit has been flight test for n...

Page 2: ... 1 Rudder 1 Dihedral brace 1 PACK 3 Fuel tank 1 Wheels 2 Tail gear 1 Tail wheel 1 Control horn 4 Control wire 4 Motor mount 1 Hardware pack 1 Pack 4 Manual 1 Decal kit 1 The following additional items will also be needed to build the CAP SPORT HOBBY ITEMS 4 oz 30 min epoxy Popsicle sticks Hobby knife Thin CA 5 oz Radio 4 channel min 4 servos RTV silicone Motor Muffler Spinner Fuel line Screwdriver...

Page 3: ...ly if necessary The following steps must be done quickly before the epoxy has time to set up Read the procedure and gather the materials before starting Mix a small amount of 30 minute epoxy Spread the epoxy in the dihedral box top bottom and sides about 1 inch in on both wing panels The snug fit of the brace will push it down the box Apply epoxy to one half of the wing spar and slide it into posi...

Page 4: ...lizer Looking through the rudder slot for the line center the stabilizer in the fuselage Using a piece of string go back and forth between the ends of the stabilizer adjusting it till it is centered and square to the fuselage DO NOT GLUE Use a felt tip pen to mark the outline of the fuselage on both the top and bottom of the stabilizer Remove the stabilizer Cut through the covering about 1 8 inch ...

Page 5: ...oxy with a paper towel moistened with alcohol Allow to cure before proceeding Remove the rudder from the fin Slide the fin into the fuselage and with a felt tip pen outline the fuselage Remove the covering 1 8 inch down as was done with the stabilizer Coat both sides of the wood on the fin with epoxy do not coat the inside of the slot or epoxy will be pushed down on to the elevator link Push the f...

Page 6: ...r end is pushed on the short metal tube the flop weight will be approximately 3 8 inch from the back of the tank Slide the assembly into the tank making sure to get the vent tube in or near the top Tighten the screw until the stopper is tight in the opening It is best to label the vent and carb lines with a felt tip marker on the outer plate to avoid confusion later Apply a 1 4 inch bead of RTV si...

Page 7: ...k and drill the hole for the tail wheel tiller arm Insert pins on the centerline of each hinge to prevent them from sliding too far in Install the hinges rudder and tiller arm With the rudder correctly aligned remove the pins and place a drop of thin CA on each side of each hinge Remove the covering over the elevator link holes at the inside corner of each elevator half 7 ...

Page 8: ...ned side to side remove the pins and CA the hinges Use the same procedure to install the ailerons on the wing Insert pins in the center of the hinge install and align the aileron then apply one drop of thin CA to each side of the hinge Because of the lightweight airframe the FUN 50 was designed to use standard 40 ounce servos Our prototype used HITEC HS 425BB with excellent results Use these direc...

Page 9: ...e elevator push rod is made in the same fashion The length for the elevator is 5 inches Mount the control horn 3 16 inch in from the inside edge of the elevator Test fit the aileron servos in the wing Add the servo wire extension and use the string to pull through the wing Fabricate the push rod by making a Z bend 5 inches from the threaded end Mount the aileron bellcrank in the aileron hard point...

Page 10: ...all the remainder of the radio gear following the manufacture instructions Open the holes in the wing for the hold down screws Install the wind and belly pan with the provided screws BALANCE The center of gravity must be located from 3 1 2 to 4 1 2 inches behind the leading edge of the wing Moving it to the forward side of the range will increase the stability of the aircraft moving it aft will in...

Page 11: ...iner A true aerobatic aircraft it goes only where you point it and will not recover to level flight without control input If you do not have high performance experience seek the help of someone who does Line up on the center of the runway and slowly open the throttle using the rudder to maintain directional control Once the tail is up apply a little up elevator and allow the plane to gently lift o...

Page 12: ...e edge can be maintained with 80 stick deflection Final roll rate should be 300 360 degrees per second If you have followed the procedures in this Manuel you will now be rewarded with one of the finest flying sport models available All primary aerobatic maneuvers are at your fingertips and the aircraft will perform them with ease 12 ...

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