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DECATHLON 

                                                                                        

Instruction Manual

16

VERTICAL STABILIZER

INSTALLATION

7)

After the epoxy has fully cured, re-

move the masking tape or T-pins used to hold
the stabilizer in place.  Carefully inspect the
glue joints.  Use more epoxy to fill in any gaps
that may exist that were not filled previously
and clean up the excess using a paper towel
and rubbing alcohol.

6) When you are sure that everything is

aligned correctly, mix up a generous amount
of Flash 30 Minute Epoxy.  Apply a thin layer
to the top and bottom of the stabilizer mount-
ing area and to the stabilizer mounting plat-
form sides in the fuselage.  Slide the stabi-
lizer in place and realign.  Double check all of
your measurements once more before the ep-
oxy cures. Hold the stabilizer in place with T-
pins or masking tape and remove any excess
epoxy using a paper towel and rubbing alco-
hol.

3) With the stabilizer held firmly in place,

use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet.  Do this
on both the right and left sides and top and
bottom of the stabilizer.

4) Remove the stabilizer.  Using the lines

you just drew as a guide, carefully remove the
covering from between them using a model-
ing knife.

Pen.

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.

move the covering that overlaps the stabilizer
mounting platform sides in the fuselage.  Re-
move the covering from both the top and the
bottom of the platform sides.

5) Using a modeling knife, carefully re-

1) Using a modeling knife, remove the

covering from over the precut hinge slot cut
into the lower rear portion of the fuselage.  This
slot accepts the lower rudder hinge.

Hinge.

Remove covering.

Hinge slot.

Summary of Contents for DECATHLON

Page 1: ...ctory installed enginemount Comprehensivehardwarepackincludingwheels tank spats undercarriage spinner Photo illustratedstep by stepAssemblyManual SPECIFICATIONS WING SPAN 172CM 67 75 in WINGAREA 49 17Sq dm 762Sq in WEIGHT 3 17 3 62KG 7 8lbs ENGINE SIZE 40 46 cu in 2 stroke 50 72 cu in 4 stroke RECOMMENDED R C 4 CHANNEL MINIMUM WITH 6 SERVOS FLYING SKILL LEVEL ADVANCED INTERMEDIATE LENGTH 127CM 50i...

Page 2: ...TY 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 safety regulations that may apply ADDITIONAL ITEMS REQUIRED 40 46 2 strok...

Page 3: ...y fit and are aligned properly before gluing This will ensure proper as sembly as the DECATHLON is made from natural materials and minor adjustments 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...

Page 4: ...e aileron until the T pin is snug against the aileron This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the wing panel HINGING THE AILERONS Note The hinge is constructed of a special material that allows the CA to wick or penetrate and distribute throughout the hinge securely bonding it to the wood structure of the wing panel and aile...

Page 5: ...l HINGING THE ELEVATORS 3 Slide the elevator on the horizontal stabilizer panel until there is only a slight gap The hinge is now centered on the horizontal stabilizer panel and elevator Remove the T pins and snug the elevator against the horizontal stabilizer panel A gap of 1 64 or less should be maintained between the horizontal stabilizer panel and elevator 4 Deflect the elevator and completely...

Page 6: ...to the vertical stabilizer 3 Slide the rudder on the vertical stabilizer panel until there is only a slight gap The hinge is now centered on the vertical stabilizer panel and rudder Remove the T pins and snug the rudder against the vertical stabilizer panel A gap of 1 64 or less should be maintained between the vertical stabilizer panel and rudder 4 Deflect the rudder and completely saturate each ...

Page 7: ... box up to the centreline With paper towels and rubbing alcohol wipe off any excess epoxy that may have squeezed out of the joint Next pour some epoxy into the dihedral box in the other wing panel Apply epoxytotheexposedportionthebrace and to the wing root of both wings Carefully slide the two wing halves together and firmly press them together allowing the excess epoxy to run out There should not...

Page 8: ...ervo lead Use masking tape to secure the leads to the wing and prevent them from falling back into the wing 2 Install the rubber grommets and brass collets onto the aileron servo Test fit the servo into the aileron servo mount Masking tape Small weight Thread Thread Small weight Thread Servo 2pcs 2pcs of 12 extension servos Because the size of servos differ you may need to adjust the size of the p...

Page 9: ...cedure for the other wing half INSTALLING THEAILERON LINKAGE 1 Using a ruler pen to draw a straight line as below picture 2 Locate nylon control horns nylon con trol horn backplates and 2 control horns bolts come with 2 nuts 2MM x 20MM Thread Servo electric wire Plastic tape Servo arm Servo arm Line ...

Page 10: ...rough the aileron halves 6 Thread one clevis control horn onto each aileron torque rod Thread the clevis on until they are flush with the ends of the torque rods Control Horn Mounting Screws Mounting Plate 5 Mount the control horns by inserting the bolts through the control horn bases and aileron halves then into the mounting backplates Thread 2 nuts onto the bolt Do not overtighten the nut may cr...

Page 11: ...Nylon Fuel Tank 1 Preassembled StopperAssembly 1 Metal Weighted Pick Up 1 Silicon tube 5 With the stopper assembly in place the weighted pickup should rest away from the rear of the tank and move freely inside the tank The top of the vent tube should rest just below the top of the tank It should not touch the top of the tank 6 When satisfied with the alignment of the stopper assembly tighten the 3...

Page 12: ... C A glue on the bolt threads will help prevent loosening in flight 5 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 WHEEL AND WHEEL PANTS PARTS REQUIRED Engine mount 4MMx30MM Blow through one of the lines to ensure th...

Page 13: ... on the wheel collar screws will help keep them from coming lose during operation Repeat the process for the other wheel Landing gear 3 You have to trim each axle using a toll cutting and cut off wheel Wheel Collar Axle Wheel Nut Wheel Pant Landing Gear Nut 2 Washer 10 mm 2 Wheel Collar Axle Wheel Nut Nut 2 Washer 53mm Caution when cutting the axles and wear protective goggles ...

Page 14: ... place using pieces of masking tape Because of the diameter of the cowl it may be necessary to use a needle valve extension for the high speed needle valve Make this out of sufficient length 1 5mm wire and install it into the end of the needle valve Secure the wire in place by tightening the set screw in the side of the needle valve 3mm X 12mm 3 Using the hardware provided mount the main landing g...

Page 15: ...el filler valve 3 Slide the cowl back over the engine and secure it in place using four wood screws See picture below 5 It is recommended to install a Muffler extension this item is not include INSTALLING THE SPINNER 1 Install the spinner backplate propeller and spinner cone The spinner cone is held in place using two 3mm x 12mm wood screws The propeller should not touch any part of the spinner co...

Page 16: ...remove any excess epoxy using a paper towel and rubbing alco hol 3 With the stabilizer held firmly in place use a pen and draw lines onto the stabilizer where it and the fuselage sides meet Do this on both the right and left sides and top and bottom of the stabilizer 4 Remove the stabilizer Using the lines you just drew as a guide carefully remove the covering from between them using a model ing k...

Page 17: ...g 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 90º Vertical Stabilizer Horizontal Stabilizer 2 Slide the vertical stabilizer into the slot in the top of the fuselage The rear edge of the stabilizer should be flush with the rear edge of the fuselage and the lower rudder hinge should engage the...

Page 18: ...ntrol Horn Mounting Screws Mounting Plate Elevator control horn Rudder control horn Elevator pushrod Rudder pushrod 4 Mount the control horns by inserting the bolts through the control horn bases and eleva tor halves then into the mounting backplates Do Not overtighten the nuts may crush the wood 5 Position the rudder control horn on the left side of the airplane Mount the control horn parallel wi...

Page 19: ...the switch into the precut hole in the servo tray in the fuselage from the bot tom Use the two screws provided with the switch to secure it in place Drill two 3 32 holes through the tray for the screws to pass through 3 While holding the clasp firmly in place use a pen and outline the clasp onto the rud der 4 Remove the clasp and using a mod eling knife remove the covering from inside the lines yo...

Page 20: ...m C A glue attached 1 Plug the five servo leads and the switch lead into the receiver Plug the battery pack lead into the switch also 2 Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration INSTALLING THE RECEIVERAND BATTERY 3 Position the battery pack in the fuel tank compartment and the receiver just be hind the fuel tank Use extra foam pieces to hold th...

Page 21: ...DECATHLON INSTRUCTION MANUAL 21 WING STRUT INSTALLATION Parts requirement See picture below 4 pcs 2 pcs Installing alumium plate follow picture below Alumium plate Alumium plate ...

Page 22: ... airplane should sit level or slightly nose down when you lift it up with your fingers BALANCING CONTROL THROWS 1 We highly recommend setting up the DECATHLON using the control throws listed at right We have listed control throws for both initial test sport flying and aerobatic flying INITIAL FLYING SPORT FLYING Ailerons low rate 3 8 up 3 8 down Ailerons high rate 7 8 up 7 8 down Elevators low rat...

Page 23: ...the control surfaces All should move in the correct direction and not bind in any way 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 rate settings 7 Check the receiver antenna It should be fully extended and not coi...

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