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BEFORE FLYING THE MODEL

FIND A SUITABLE FLYING SITE
Find a flying site clear of buildings, trees, power lines and other obstructions. Until you

know how much area will be required and have mastered flying your plane in confined

spaces, choose a site which is at least the size of two to three football fields – a flying

field specifically for R/C planes is best. Never fly near people– especially children who

can wander unpredictably.

PERFORM THE RANGE CHECK OF YOUR PLANE
As a precaution, an operational ground range test should be performed before the first flight 

each time you go out. Performing a range test is a good way to detect problems that could 

cause loss of control such as low batteries, defective or damaged radio components, or 

radio interference. This usually requires an assistant and should be done at the actual flying 

site you will be using.
First turn on the transmitter, then install a fully-charged battery into the fuselage.

Connect the battery and install the hatch.
Remember, use care not to bump the throttle stick, otherwise, the propeller / fan

will turn and possibly cause damage or injury.
NOTE: Please refer to your TRANSMITTER MANUAL that came with your radio control

system to perform a ground range check. If the controls are not working correctly

or if anything seems wrong, do not fly the model until you correct the problem.

Make certain all the servo wires are securely connected to the receiver and the

transmitter batteries have a good connection.

MONITOR YOUR FLIGHT TIME
Monitor and limit your flight time using a timer (such as one on a wrist watch or in your 

transmitter if available). When the batteries are getting low you will usually notice a 

performance drop before the ESC cuts off motor power, so when the plane starts flying 

slower you should land. Often (but not always) power can be briefly restored after the motor 

cuts off by holding the throttle stick all the way down for a few seconds.
To avoid an unexpected dead-stick landing on your first flight, set your timer to a 

conservative 4 minutes. When your alarm sounds you should land right away.

Summary of Contents for P-51D OLD CROW

Page 1: ...Please read this manual carefully before operating this plane P 51DOLDCROW PNF...

Page 2: ...e product or the property of others This model is controlled by a radio signal subject to interference from many sources outside your control This interference can cause momentary loss of control so i...

Page 3: ...bilizer control servos 8 Electronics installation and set up 9 Main wing assembly set up and installation 10 12 Install the control rod 10 Test the retract and the LED set 11 Install the oil tank 11 M...

Page 4: ...ent parts for the Durafly P 51D are available using the order numbers in the Spare parts list that follows The fastest most economical service can be provided by your hobby dealer or mail order compan...

Page 5: ...nding gear With the tire 21029 Propeller 23389 X Motor base Decal sheet 23391 Motor shaft 23392 Motor board 23393 Pilot NOTE All of the parts are painted with no decal applied THE ILLUSTRATION OF THE...

Page 6: ...ch fire Never use a Ni Mh charger Failure to charge the battery with a compatible charger may cause fire resulting in personal injury and property damage Never discharge Li Po cells to below 3V Never...

Page 7: ...sure the screws are firmly grabbed into the horns 4 Install the aileron control horn on the servo side of the main wing with the horn towards the hinge line as the picture shows 2 Secure the horn from...

Page 8: ...d screws from the backplate side NOTE The longer screws for secure the horns always located on the leading side of the surface 3 4 Make sure the screws firmly into the backplate Note Do not over tight...

Page 9: ...ting Groove NOTE leave it for one minute after applying glue to the horizontal stabilizer for better gluing before inserting to tail 3 1 3 2 3 3 INSTALL THE HORIZONTAL STABILIZER Ailerons Ailerons Gea...

Page 10: ...r and flaps Refer to the diagram bellow for recommended connections Receiver connection diagram 4 Attach the receiver to the receiver chamber in front of the tail servo using double side tape or velcr...

Page 11: ...re all the control sticks on your radio are in the neutral position rudder elevator ailerons and the throttle in the OFF position Turn on the transmitter and power on the model move the elevator and t...

Page 12: ...your radio 5 The motor should rotat counterclockwise when viewing the plane from the front Or you will have to disconnect any two of the motor plugs and plug them back to each other s socket ELECTRON...

Page 13: ...root 4 Thread the folks on the linkage rod clockwise and counterclockwise to make sure the flaps are at right position when the folk closed 2 Make sure the aileron servo horns are fully vertical with...

Page 14: ...re proper function 2 Make sure the navigation light on port side L wing tip emitting red beams the starboard R is green 1 Slide the oil tank into place as the picture shows MAIN WING ASSEMBLY SET UP A...

Page 15: ...ly pull the leads from the receiver hatch before fully fit the main wing into place to avoid any tangling to prevent the wing from fully mounting 1 2 3 Check to make sure the main wing before secure i...

Page 16: ...th the brake switched off and we recommended that the P 51 be flown with the brake off However the brake could be accidentally switched on if the motor battery is connected to the ESC while the thrott...

Page 17: ...tle in the OFF position Make sure both ailerons move up and down travel the same amount This model tracks well when the left and right ailerons travel the same amount in response to the control stick...

Page 18: ...ASSEMBLY AND SET UP PROCEDURES 2 Recheck to align the control surfaces well by trim the control channel The ailerons align with the trailing edge of the wing tip 2 1 2 2 2 3 2 4 Aileron Aileron Eleva...

Page 19: ...LEVATOR 12mm up and down measured at the counterbalance leading edge RUDDER 12mm left and right measured at the counterbalance leading edge FLAPS Full 25mm 2 The dual rates and the Exponential setting...

Page 20: ...he plane Install the nut and make sure the nut is tight enough to the propeller FINAL ASSEMBLY AND SET UP PROCEDURES NOTE 1 This control throws were developed by R D department for the best performanc...

Page 21: ...the antenna mast into the pre notched slot at the rear end of the plane 2 Apply glue on the combined side of the air exhaust stack 3 Install the air exhaust stack NOTE Insert the front part of the st...

Page 22: ...88 P 51D OLD CROW 19 MAINTENANCE MARK APPLYING INSTRUCTION NOTE Please apply the maintenance mark details as the guiding illustrated pictures shows...

Page 23: ...20...

Page 24: ...ty CG location for your model is 75mm 2 95in forward from the leading edge of the main wing as shown with the battery pack installed Mark the location of the CG on top of the wing 2 When balancing you...

Page 25: ...e Connect the battery and install the hatch Remember use care not to bump the throttle stick otherwise the propeller fan will turn and possibly cause damage or injury NOTE Please refer to your TRANSMI...

Page 26: ...power If using a transmitter with a timer set the timer so you have enough flight time to make several landing approaches Recharge the battery and repair the model as needed The model s three point la...

Page 27: ...ry Replace flight battery and obey flight battery instructions Control surface does not move or is slow to respond to control inputs Control surface control horn linkage or servo damage Wire damaged o...

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