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Jumper 25

                                                                                  

Instruction Man u al

12

8) Using  a  modeling  knife,  carefully 

re move  the  covering  that  overlaps  the 

sta bi liz er  mount ing  plat form  sides  in  the 

fuselage.    Re move  the  cov er ing  from  both 

the top and the bottom of the plat form sides.

9) When you are sure that everything is 

aligned correctly, mix up a generous amount 

of Flash 30 Minute Epoxy.  Apply a thin lay er to 

the top and bottom of the sta bi liz er mount ing 

area and to the sta bi liz er mount ing plat form 

sides in the fu se lage.  Slide the sta bi liz er in 

place and re align.  Dou ble check all of your 

mea sure ments once more be fore the ep oxy 

cures. Hold the sta bi liz er in place with T-pins or 

mask ing tape and re move any ex cess ep oxy 

using a paper tow el and rub bing al co hol.

Jumper 25

HORIZONTAL STABILIZER.

PARTS REQUIRED

  

{1} Horizontal Stabilizer with Elevator  

            Halves

ALIGNING THE HORIZONTAL STABILIZER

1) Using  a  ruler  and  a  pen,  locate  the 

centerline of the hor i zon tal stabilizer, at the 

trail ing edge, and place a mark.  Use a tri an gle 

and  extend  this  mark,  from  back  to  front, 

across the top of the stabilizer.  Also extend 

this mark down the back of the trail ing edge 

of the stabilizer.

  

4) Install the wing onto the fuselage.  Align 

the cen ter line drawn on the top and the rear of 

the sta bi liz er with the center of the fu se lage.  

When that is aligned, hold the sta bi liz er in that 

po si tion us ing T-pins or masking tape.  Align 

the hor i zon tal sta bi liz er with the wing.  When 

viewed from the rear, the hor i zon tal sta bi liz er 

should be level with the wing.  If it is not lev el, 

use sand pa per and sand down the high side 

of  the  sta bi liz er  mount ing  plat form  until  the 

prop er align ment is achieved.  The tips of the 

sta bi liz er should also be equal dis tance from 

the tips of the wing. 

The top of the stabilizer does 

not

 have 

the hinge pins exposed.

  

2) Using  a  modeling  knife,  carefully 

re move  the  cov er ing  from  over  the  vertical 

sta bi liz er  mount ing  slot  in  the  top  of  the 

fu se lage.

3) Slide  the  stabilizer  into  place  in  the 

pre cut slot in the rear of the fuselage.  The 

sta bi liz er should be pushed fi rmly against the 

front of the slot.

  

5) When  you  are  satisfied  with  the 

align ment, hold the stabilizer in place with T- 

pins or mask ing tape, but do not glue at this 

time.

MOUNTING THE HORIZONTAL STABILIZER

  

6) With the stabilizer held fi rmly in place, 

use a pen and draw lines onto the stabilizer 

where it and the fu se lage sides meet.  Do this 

on both the right and left sides and top and 

bottom of the sta bi liz er.

  

7)  Remove the sta bi liz er.  Us ing the lines 

you just drew as a guide, carefully re move the 

cov er ing from be tween them us ing a mod el ing 

knife.

When  cutting  through  the  covering  to 

re move it, cut with only enough pres sure 

to  only  cut  through  the  covering  it self.  

Cut ting into the balsa struc ture may weak en 

it.

Содержание JUMPER 25

Страница 1: ..._ 2 5kg Recommended engine size___0 25 0 32 cu ins 2 stroke Recommended R C_____________ 4 channel minimum Flying skill level __________________ High wing Trainer Kit features Ready made minimal assembly finishing required Ready covered including decals trim covering Factory installed pushrod Factory installed metal engine mount Factory pinned glued control surface hinges for ultimate safety Compr...

Страница 2: ...roperty WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL RISK RESPONSIBILITY If you are inexperienced 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 safet...

Страница 3: ...nd acetone Do not let thesechemicalscomeincontactwiththe colours on the covering and the plastic parts WING ASSEMBLY NOTE We highly recommend using 30 minute epoxy as it is stronger and provides more working time allowing the builder toproperlyaligntheparts Usingfastcure epoxywhenjoiningthewinghalvescould 2 Test fit the dihedral brace into each wing half The brace should slide in easily up tothece...

Страница 4: ...LING THE AILERON SERVO MOUNT 1 Plywood Aileron Servo Mount 1 Install the rubber grommets and brass collets onto the aileron servo Test fit the servo into the aileron servo mount Because the size of servos differ you may need to adjust the size of the precut opening in the mount The notch in the sides of the mount allow the servo lead to pass through 2 Remove the aileron servo Place the mount onto ...

Страница 5: ...orque rod Thread the horns on until they are flush with the ends of the torque rods 2 Thread one nylon clevis at least 5 16 onto each of the two 2mm x 170mm threaded wires 5 Slide the pushrod wires following picture bellow before installing the screws This will prevent the wood from splitting 6 With both the aileron servo and the ailerons centered 3 With the aileron servo centered install the serv...

Страница 6: ...qual distance from the inside and outside ends of the wire 4 Using the two landing gear straps as a guide mark the locations of the four 3mm x 12mm mounting screws onto the fuselage surface 5 Remove the two straps and the gear wire Drill four 3 32 pilot holes into the wing for the wood screws INSTALLING THE MAIN GEAR WHEELS 8 Slide one wheel collar with 3mm x 6mm set screw onto each axle Push the ...

Страница 7: ...LLATION PARTS REQUIRED q 1 Nose gear q 1 Steering arm q 1 Connector q 1 Wheel TOOLS REQUIRED Installing steering arm as follow Adjust the nose gear steering arm until the arm is parallel with the fire wall Slide one 60mm diameter wheel onto each axle and push them up against the wheel collars Slide the remaining wheel collars with 3mm x 6mm set screws onto the axles Push them up against the wheels...

Страница 8: ...ube When the stopper assembly is installed in the tank the top of the vent tube should 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...

Страница 9: ... 2 Feed both lines through the fuel tank compartment and through the predrilled hole in the firewall Pull the lines out from behind the engine while guiding the fuel tank into place Push the fuel tank until the front of the tank touches the firewall Blow through one of the lines to ensure the fuel lines have not become kinked inside the fuel tank compartment Air should flow through easily silicon ...

Страница 10: ...hey can be moved if needed 9 Attach the Z Bend in the pushrod wire to the throttle arm on the carburetor You will need to remove the throttle arm from the car buretor to be able to attach the Z bend When complete reattach the throttle arm to the car buretor 10 Locate the fuel tank assembly you built earlier Connect two lengths of fuel line not in cluded to the tubes coming out of the tank Keep tra...

Страница 11: ...the side of the fuselage through the hole you drilled Switch Some switches come with a hole drilled through the switch tab for this very purpose If your switch does not remove the switch and drill a 3 32 hole through the middle of the switch tab INSTALLING THE FUSELAGE SERVOS 4 Install the rubber grommets and brass collets onto the elevator rudder and throttle servos Test fit the servos into the p...

Страница 12: ...en that is aligned hold the stabilizer in that position using T pins or masking tape Align the horizontal stabilizer with the wing When viewed from the rear the horizontal stabilizer should be level with the wing If it is not level use sandpaper and sand down the high side of the stabilizer mounting platform until the proper alignment is achieved The tips of the stabilizer should also be equal dis...

Страница 13: ...he rear edge of the stabilizer should be flush with the rear edge of the fuselage and the lower rudder hinge should engage the precut hinge slot in the lower fuselage The bottom edge of the stabilizer should also be firmly pushed against the top of the horizontal stabilizer 3 While holding the vertical stabilizer firmly in place use a pen and draw a line on each side of the vertical stabilizer whe...

Страница 14: ...orns three nylon control horn backplates and six 2 x 15mm machine screws 2 Position the two elevator horns on the bottom side of each elevator 1 1 8 out from the sides of the fuselage The clevis attach ment holes should be positioned over the hinge line Control Horn Mounting Screws Mounting Plate 3 Using a modeling knife remove the cov ering from over the two precut pushrod slots one on left side ...

Страница 15: ...tor and rudder servo arms should be perpendicular to the servos 7 One at a time hold the pushrods in po sition over the respective servos to check for proper servo direction If any servo turns in the wrong direction switch your radio s reversing switches as necessary to achieve the correct direction 8 Insert the nose gear pushrod wire through the adjustable servo connector on the rudder servo arm ...

Страница 16: ...bilizer using a rubber band and a modified servo arm See picture as follow Antenna Antenna Rubber Rubber Rubber Band Modified Modified Servo Arm Servo Arm Cut Cut 1 It is critical that your airplane be balanced correctly Improper balance will cause your plane to lose control and crash The center of gravity is located 7cm back from the leading edge of the wing at the fuselage sides Balance the Jump...

Страница 17: ...ease the amount of throw FLIGHT PREPARATION 1 Check the operation and direction of the elevator rudder ailerons and throttle A Plug in your radio system per the manufacturer s instructions and turn everything on B Check the elevator first Pull back on the elevator stick The elevator halves should move up If it they do not flip the servo reversing switch on your transmitter to change the direction ...

Страница 18: ...ying 2 Check every bolt and every glue joint in the PC 9 to ensure that everything is tight and well bonded We wish you many safe and enjoyable flights with your Jumper 25 8 Properly balance the propeller An out of balance propeller will cause excessive vibration which could lead to engine and or airframe failure 3 Double check the balance of the airplane Do this with the fuel tank empty 4 Check t...

Страница 19: ...cu ins 2 stroke _____________________________0 52 cu ins 4 stroke Recommended R C_____________ 4 channel minimum Flying skill level __________________ Low wing Trainer Kit features Ready made minimal assembly finishing required Ready covered including decals trim covering Factory installed pushrod Factory installed metal engine mount Factory pinned glued control surface hinges for ultimate safety ...

Страница 20: ...______ 4 channel minimum Flying skill level ______________Intermediate advanced Kit features Ready made minimal assembly finishing required Ready covered including decals trim covering Factory installed pushrods Factory installed metal engine mount Factory pinned glued control surface hinges for ultimate safety Comprehensivehardwarepackincludingwheels tank spats undercarriage spinner Photo illustr...

Страница 21: ... 4240cm2 Recommended engine size ________ 0 46 0 61 cu ins 2 stroke Recommended R C __________________ 4 channel minimum Flying skill level __________________ Intermediate advanced Kit features Ready made minimal assembly finishing required Ready covered including decals trim covering Factory installed pushrods Factory installed metal engine mount Factory pinned glued control surface hinges for ul...

Страница 22: ...___________________ 91 120 cu ins 4 stroke Recommended R C_____________ 4 channel minimum Flying skill level ______________Intermediate advanced Kit features Ready made minimal assembly finishing required Ready covered including decals trim covering Factory installed pushrods Factory installed metal engine mount Factory pinned glued control surface hinges for ultimate safety Comprehensivehardwarep...

Страница 23: ... the photographs If yes please explain o Yes o No Were any of the kit parts o Damaged o Wrong Size o Missing o Wrong Shape If you checked any of the boxes above did you contact our Customer Service Department to resolve the problem o Yes o No Was any of the assembly difficult for you If yes please explain What did you like most about this kit o Assembly Manual o Parts Fit o Hardware Supplied o Pri...

Страница 24: ...thout proper postage Please return this sheet to Europe J Perkins Distribution Limited 90 96 Greenwich High Road London SE10 8JG England Fax 0044 208 692 2469 Please return this sheet to Australia Model Engines 44 Downing Street Oakleigh Melbourne 3166 Australia Fax 03 9569 0930 ...

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