background image

PC-9                       Item code: BH151

.                                      

Instruction Manual

17

BALANCING

105mm

CG

 

1) 

It is critical that your airplane be balanced cor

rectly. Improper balance will cause your plane to lose 

control and crash.

THE CENTER OF GRAVITY IS LOCATED

105 MM

 BACK FROM THE LEADING EDGE OF THE 

WING.

 

2)

 Mount the wing to the fuselage. Using a couple 

of pieces of masking tape, place them on the top side 

of the wing

 105 mm

 back from the leading edge, at the 

fuselage sides.

 

3) 

 Turn the airplane upside down. Place your fingers 

on the masking tape and carefully lift the plane.

Accurately  mark  the  balance  point  on  the  top  of  the 

wing on both sides of the fuselage. The balance point 

is located 

105mm

 back from the leading edge. This is 

the balance point at which your model should balance 

for your first flights. Later, you may wish to experiment 

by shifting the balance up to 10mm forward or back to 

change the flying characteristics. Moving the balance 

forward may improve the smoothness and arrow- like 

tracking, but it may  then require more speed for take 

off  and make it more difficult to slow down for landing. 

Moving the balance aft makes the model more agile 

with a lighter and snappier ”feel”. In any case, please 

start at the location we recommend.

With the wing attached to the fuselage, all parts of the 

model  installed  (ready  to  fly),  and  empty  fuel  tanks, 

hold the model at the  marked balance point with the 

stabilizer level.

Lift the model. If the tail drops when you lift, the model 

is “tail heavy” and you must add weigh* to the nose. If 

the nose drops, it is “nose heavy” and you must add 

weight* to the tail to balance. 

*If  possible,  first  attempt  to  balance  the  model  by  

changing  the  position  of  the  receiver  battery  and   

receiver. If you are unable to obtain good balance by 

doing  so,  then  it  will  be  necessary  to  add  weight  to 

the nose or tail to achieve the proper balance point.

 

1)

 Completely charge your transmitter and receiver 

batteries  before your first day of flying.

 

2) 

 Check every bolt and every glue joint in  your 

plane to ensure that everything is tight and well bonded.

 

3) 

 Double check the balance of the airplane.

 

4)

 Check the control surface.

 

5)

 Check the receiver antenna . It should be fully 

extended and not coiled up inside the fuselage.

 

6)

 Properly balance the propeller.

We wish you many safe and enjoyable flights 

with your PC-9.

PRE-FLIGHT CHECK

CONTROL THROWS

10mm
10mm

15mm

10mm
10mm

25mm
25mm

Flap control

Aileron control

Elevator control

Rudder control

 

1)

 We highly recommend setting up a plane using 

the control throws listed.

 

2) 

The control throws should be measured at the 

widest point of each control surface.

 

3) 

Check to be sure the control surfaces move in 

the correct directions.

 

Ailerons : 10 mm up 10 mm down

 

Flap : 15 mm

 

Elevator : 10 mm up 10 mm down

 

Rudder : 25 mm right 25 mm left

Summary of Contents for PILATUS PC-9

Page 1: ...2 015mm 79 33in Weight 7 8 kg 17 16 lbs Wing area 64 4dm2 Wing loading 121g dm2 Wing type NACA airfoils Spinner 90mm Gear type Air retract gear CNC Suspension Metal Struts included SPECIFICATION Parts listing required Not included Engine O S GT 33 cc Gas Radio 08 channels Servo 07 servos size 40 x 20 x 38 mm 3 servos size 32x16x33 mm elevator rudder Standard high torque servos ...

Page 2: ...ilizer with pre installed rud der 1 Horizontal stabilizer with pre installed elevator halves To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbench with an old towel or brown paper both to protect the aircraft and to protect the table Keep a couple of jars or bowls handy to hold the small parts after you open the bag SUGGESTION NOTE P...

Page 3: ...and rub down with a soft cloth Wing warp Hold the panel twisted gently in the opposite direction to the warp and apply warm air to remove the creases from the covering Caution do not heat the film more than is absolutely necessary If the air or the iron is too hot the film may melt and holes may be formed This model is highly pre fabricated and can be built in a very short time However the work wh...

Page 4: ...Aluminium tube horizontal stabilizer F Pilot K Cowling G Decal sheet M Cockpit top hatch N Canopy clear B1 C2 B2 E1 E2 F K D C1 A G M N 1 Air retracts main gear 2 Air retract nose gear 3 Push pull cable nose gear 4 Air tank 5 4 ways connector 6 3 way connector 7 Air line sets 8 Valve control 9 Valve one way 8 1 9 2 11 12 13 3 4 5 6 7 11a 11b 10 10 10 Wheels 11 Fuel tank 12 Connector 13 Spinner ...

Page 5: ...using mask ing tape tape the servo lead to the end of the thread carefully pull the thread out When you have pulled the servo lead out remove the masking tape and the servo lead from the thread 4 Place the servo into the servo tray Center the servo within the tray and drill 1 5mm pilot holes through the block of wood for each of the four mount ing screws provided with the servo Drill a hole 1 5mm ...

Page 6: ...pposite wing half After both linkages are completed connect both of the aileron servo loads using a Y harness you have purchased 3 INSTALLING THE AILERON LINKAGES 3 Repeat the procedure to install the control horn on the opposite aileron Installing the aileron linkages as pictures below 55mm M2 lock nut 3x10mm Aileron control horn 1 A B Epoxy glue 2 Push in Aileron control horn Air retract ...

Page 7: ...ion Secure the air retract to the wing Install and secure the wheel Push in Secure 3 x 15mm Drill a hole 2mm diameter Air tube Install the tube to the air retract Repeat the procedure to install the opposite wing Bottom side IV INSTALLING THE ENGINE MOUNT 5 x 35 mm Secure Collar Drill a hole 6 2mm diameter Secure 5x70mm ...

Page 8: ...nk 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 of it falls into the tank 6 When satisfied with the alignment of the stopper assembly tighten the 3mmx20mm machine screw until the rubber stopper expands and seals the tank opening Do not over tighten the assembly as this could cause the tank to split 7 Using a...

Page 9: ...owl opening Hold the cowl firmly in place using pieces of masking tape 3 Slide the cowl back over the engine and secure it in place using four wood screws See picture below 4 Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance Connect the fuel and pressure lines to the carburetor muffler and fuel filler valve 1 Slide the fiberglass cowl o...

Page 10: ...he control horn on the opposite elevator Repeat step 1 on the part I page 5 to install the elevator servo 2 ELEVATOR CONTROL HORN INSTALLATION Elevator control horn install as same as the way of aileron control horn Please see pictures below 1 A B Epoxy glue 2 Push in Control horn Repeat the procedure to install the elevator pushrod on the opposite elevator Elevator pushrod install as same as the ...

Page 11: ...1 Push in 2 Push in Secure Bottom side Rudder control horn Rudder pushrod See pictures below IX RUDDER INSTALLATION 2 Push in Rudder servo and control horn install as same as the way of aileron Rudder pushrod install as same as the way of elevator pushrod Please see pictures below RUDDER CONTROL HORN INSTALLATION Cut Aluminium 1 Push in ...

Page 12: ...control servo Air supply Air tank Left main gear wing Nose gear Right main gear wing Secure Zip tie Install the servo to the fuselage Please see pictures below XI INSTALLING SERVO USING FOR VALVE CONTROL Please see pictures below X INSTALLING THE AIR TANK Air tank Tie wrap A B Epoxy glue Attach the valve control to servo Connector ...

Page 13: ... GEAR Nose air retractable landing gear install as same as the way of air retractable landing gear on the part III see page 6 7 Push pull cable nose gear INSTALLING NOSE GEAR SERVO Nose gear servo Throttle servo Valve control servo Please see pictures below Push pull cable nose gear Push pull cable nose gear ...

Page 14: ...PC 9 Item code BH151 Instruction Manual 14 Item code BH151 ...

Page 15: ...e receiver and battery until after balancing the model 4 Using a 2mm drill bit drill a hole through the side of the fuselage near the receiver for the antenna to exit XIV INSTALLING THE RECEIVER AND BATTERY Switch of receiver 1 Cut out the switch hole using a modeling knife Use a 2mm drill bit and drill out the two mounting holes through the fuselage side 2 Secure the switch in place using the two...

Page 16: ...poxy glue C A glue C A glue Top side Close and Open Position the canopy so the rear frame on the canopy is aligned with the rear edge of the cockpit opening Use canopy glue to secure the canopy to the canopy hatch Use low tack tape to hold the canopy in position until the glue fully cures Wrap the tape completely around the canopy hatch as the tape does not stick well to the covering We used balsa...

Page 17: ...nstalled ready to fly and empty fuel tanks hold the model at the marked balance point with the stabilizer level Lift the model If the tail drops when you lift the model is tail heavy and you must add weigh to the nose If the nose drops it is nose heavy and you must add weight to the tail to balance If possible first attempt to balance the model by changing the position of the receiver battery and ...

Page 18: ... to an explosion Keep all onlookers especially small children and animals well back from the area of operation This is a flying aircraft which will cause serious injury in case of impact with a person or animal NEVER fly near power lines aerials or other dangerous areas including airports motorways etc ALWAYS adjust the engine from behind the propeller and do not allow any part of your body to be ...

Reviews: