Black Horse Model Mustang P51 Instruction Manual Book Download Page 33

33

MUSTANG P51 - 

Item code: BH33

 .                                        

Instruction Manual

Accurately mark the balance point on the top
of the wing on both sides of the fuselage. The
balance point is located 

135mm

 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 smooth-
ness 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 .

Secure the
canopy frame

.





1) It is critical that your airplane be bal-

anced correctly. Improper balance will cause
your plane to lose control and crash.

    THE CENTER OF GRAVITY IS LOCATED

135MM

 BACK FROM THE LEADING EDGE

OF THE WING, AT THE FUSELAGE.

BALANCING.





2) Mount the wing to the fuselage. Using a

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

135 mm

 back from

the leading edge, at the fuselage sides.





3.  Turn the airplane upside down. Place

your fingers on the masking tape and care-
fully lift the plane .



 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 bat-
tery and  receiver. If you are unable to obtain
good balance by doing so, then it will be nec-
essary to add weight to the nose or tail to
achieve the proper balance point.

135mm

Summary of Contents for Mustang P51

Page 1: ...60 mm 61 42 in Length 1 360 mm 53 54 in Weight 3 2 kg 7 04 Lbs Radio 06 channels Servo 07 Servos 2 servos Retract HITEC HS 75BB Engine 61 Cu in 2 Stroke 91 Cu in 4 Stroke Instruction Manual book Made...

Page 2: ...read lock Paper towels Some more parts HARDWAREPACK COWLING Landing gear To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbench with an...

Page 3: ...ion as simple as possible without making any compromises in the area of safety Note regarding the film covering Minor creases or bubbles may develop in the film covering due to major fluctuations in w...

Page 4: ...the thread out When you have pulled the servo lead out re move the masking tape and the servo lead from the thread Bottom of wing 2 Using a modeling knife remove the cov ering at possition show below...

Page 5: ...5 MUSTANG P51 Item code BH33 Instruction Manual Thread Servo wire Aileron servo tray Removecovering Aileron Control horn INSTALLING THE AILERON CONTROL HORN Nilon control clasp M3 lock nut 3mm x 40mm...

Page 6: ...leron linkage for now thread one clevis onto one of the threaded wires 2 Attach the clevis to the outer hole in the control horn 3 Plug the aileron servo into the receiver and center the servo Install...

Page 7: ...the masking tape from the aileron 4 Locate one nylon servo arm and using wire cutters remove all but one of the arms Using a 2mm drill bit enlarge the third hole out from the center of the arm to acc...

Page 8: ...8 MUSTANG P51 Item code BH33 Instruction Manual INSTALLING THE FLAP CONTROL HORN Flap servo INSTALLING THE FLAP SERVOS Remove covering C A glue Flap control horn...

Page 9: ...9 MUSTANG P51 Item code BH33 Instruction Manual Top of wing Aileron Flap Aileron servo Flap servo Bottom of wing INSTALLING RETRACTABLE LANDING GEAR 5x35mm 3x15mm 3x15mm 3x6mm 3x4mm 3x6mm 3x4mm...

Page 10: ...10 MUSTANG P51 Item code BH33 Instruction Manual Mark point and Drill a hole 2mm secure Secure 5x35mm...

Page 11: ...11 MUSTANG P51 Item code BH33 Instruction Manual Drillahole3mm Drillahole3mm Secure Secure Secure 3x6mm 3x8mm...

Page 12: ...12 MUSTANG P51 Item code BH33 Instruction Manual Secure...

Page 13: ...13 MUSTANG P51 Item code BH33 Instruction Manual Secure 3x12mm Cut C A glue...

Page 14: ...egree angle using a cigarette lighter This tube will be vent tube to the fueling valve INSTALLING THE STOPPER ASSEMBLY 1 The stopper has been pre assembled at the factory 2 Using a modeling knife cut...

Page 15: ...tank should just about touch the back of the firewall 7 Using a modeling knife cut 3 lengths of fuel line 150mm long Connect 2 lines to the 2 vent tubes and 1 line to the fuel pickup tube in the stopp...

Page 16: ...r the throttle pushrod One end of the wire has been pre bend in to a Z bend at the factory This Z bend should be inserted into the throttle arm of the engine when the engine is fitted onto the engine...

Page 17: ...t side Left side 1 Slide the fiberglass cowl over the en gine and line up the back edge of the cowl with the marks you made on the fuselage COWLING Right side Trim and cut Bottom side Trim and cut Rig...

Page 18: ...filler valve 2 While keeping the back edge of the cowl flush with the marks align the front of the cowl with the crankshaft of the engine The front of the cowl should be positioned so the crankshaft i...

Page 19: ...Recever HORIZONTAL STABILIZER INSTALLATION Cut the covering away from the slot Temporary pin to keep hinge centered Assemble then apply drops of thin C A to center of hinge on both sides 1 Using a mo...

Page 20: ...ve it cut with only enough pressure to only cut through the covering it s self Cutting into the balsa structure may weaken it This could lead to possible failure during flight 2 Draw a center line ont...

Page 21: ...per towel and rubbing alcohol and hold the stabi lizer in place with T pins or masking tape 6 After the epoxy has fully cured re move the masking tape or T pins used to hold the stabilizer in place an...

Page 22: ...CIA glue Top side CIA glue Bottom side E l e v a t o r cotrol horn E l e v a t o r cotrol horn Elevator pushrod install as same as the way of aileron pushrod ELEVATOR PUSHROD INSTALLATION E l e v a t...

Page 23: ...and cut after Elevator pushrod S n a p k e e p e r 1 Put the rudder into the fuselage as same as picture below 2 Mark the shape of the vertical on the left and right sides of the rudder using a left...

Page 24: ...the marked lines and remove the film of the rud der Just as you did with the horizontal stabi lizer make sure you only press hard enough to cut the film not the balsa rudder Also carefully remove the...

Page 25: ...hen apply drops of thin C A to center of hinge on both sides Epoxy glue C A glue 6 When you are sure that everything is a aligned correctly mix up a generous amount of 30 minute epoxy Apply a thin lay...

Page 26: ...ode BH33 Instruction Manual Rudder control horn install as same as the way of aileron control horn Please see pic tures below CONTROL HORN PUSHROD IN STALLATION Nilon control clasp M3 lock nut 3 x 50m...

Page 27: ...27 MUSTANG P51 Item code BH33 Instruction Manual Remove covering Slot of the rudder pushrod 3 x 12mm Bottom of fuselage Rudder pushrod Rudder pushrod Push down...

Page 28: ...28 MUSTANG P51 Item code BH33 Instruction Manual Rudder pushrod Bend and cut after Rudder control horn M3 lock nut M2 clevis Secure Rudder pusrod...

Page 29: ...USTANG P51 Item code BH33 Instruction Manual Snap keeper Elevator servo Rudder servo Elevator pushrod Elevator pushrod Rudder pushrod Secure Rudder pushrod Elevator pushrod Elevator pushrod Push C A g...

Page 30: ...This will prevent the connector from loosening during flight PUSHROD THROTTLE SERVO INSTALLATION Throttle servo Throttle pushrod Secure Cut 1 Cut out the switch hole using a modeling knife Use a 2mm d...

Page 31: ...ng the wing Plug the battery pack lead into the switch 2 Wrap the receiver and battery pack in the protective foam to protect them from vi bration Use a rubber band or masking tape to hold the foam in...

Page 32: ...32 MUSTANG P51 Item code BH33 Instruction Manual Left wing Right wing Wing bolt Installing the canopy as same as picture below Wing bolt See picture wing attach to fuselage WING ATTACHMENT...

Page 33: ...plane to lose control and crash THE CENTER OF GRAVITY IS LOCATED 135MM BACK FROM THE LEADING EDGE OF THE WING AT THE FUSELAGE BALANCING 2 Mount the wing to the fuselage Using a couple of pieces of mas...

Page 34: ...very 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 s...

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