User Manual

Function. . . . . . . . . . . . Servos required Elevators . . . . . . . . . . . . 2 (min. 50 oz-in torque) Rudder . . . . . . . . . . . . . 1 (min. 50 oz-in torque) Ailerons. . . . . . . . . . . . . 2 (min. 50 oz-in torque) Flaps. . . . . . . . . . . . . . . 2 Tail steering. . . . . . . . . . 1 Throttle . . . . . . . . . . . . . 1 Air control valve. . . . . . . 1 Optional Kill switch for gas engine . . . . . . . . 1 Total: . . . . . . . . . . . . . . 10-11 servos
A receiver battery with a minimum of 1,000 mAh is recommended for flying the giant Mustang. In the model shown in this instruction manual a Futaba NR4F 1,500 mAh battery pack (FUTM1285) is shown. Additionally, the battery voltage should be checked before every flight to be certain it has enough “charge.” In addition to the servos (and Synchronized Servo Reverser if used), the following items (or similar items) are also required. The order numbers shown (in parentheses) are for Futaba servos.
❏ (2) 24" [610mm] servo extension wires for the
aileron servos (FUTM2721)
❏ (1) Dual servo extension cord for aileron
servos (FUTM4130)
❏ (1) Y-harness for flap servos (HCAM2751) ❏ (4) 6" [150mm] servo extensions (battery-1,
aileron-1, elevator-2) (HCAM2701 for Futaba)
Note: The length and quantity of servo extensions and Y-connectors may vary depending on the brand of radio you are using and the radio installation.
prevent accidental starting. The switch must be operated manually (without the use of the transmitter) and accessible by the pilot and assistant. If using a spark-ignition engine, refer to Mount the kill switch
on page 32 for details and
a list of items used.
RADIO EQUIPMENT The radio equipment and number of channels required to fly the Top Flite Giant P-51 depend on the capabilities of your transmitter and how the servos will be connected. Two servos are required to operate the elevators. However, the servos must move in opposition, so linking them with a Y- connecter will not work. The elevator servos must either be electronically mixed using an additional channel, or be linked by a device such as a Futaba
®
SR-10 Synchronized Servo Reverser
(FUTM4150) that will mix the servos with the capability of reversing one of them. The rudder servo and tail steering servo have the same requirement, so they too must either be electronically mixed through an additional channel, or connected via a Futaba Synchronized Servo Reverser. The Giant P-51 requires a servo to operate the air control valve if using retracts, a throttle servo, two flap servos and two aileron servos. Servos with a minimum of 50 oz-in [3.9 kg-cm] of torque are required for operating the elevators, rudder and ailerons. Standard servos may be used everywhere else. If using a spark-ignition engine, a servo-operated electronic engine kill switch may also be used (this would be in addition to the IMAA-required, manually operated engine kill switch). A servo-operated kill switch is only really necessary for engines that do not reliably shut off by closing the carburetor, but could also serve as a backup.
This is a partial list of items required to finish this model that may require planning or decision making before starting to build. Order numbers are provided in parentheses. ENGINE RECOMMENDATIONS When considering engines for this model, refer to the engine size recommendations on the cover of the manual. Spark-ignition (“gas”) engines are most popular with large-scale warbirds such as this. One advantage of a gas engine is economy—gas engines tend to consume less fuel than glow engines. Gasoline costs less than glow fuel as well. Additionally, gas engines deposit little exhaust residue on the model. Among other engines, this model was flight-tested with a U.S. Engines
™
41cc engine. The U.S. 41 provides
adequate power and flies the P-51 in a scale-like manner, but pilots who wish to perform more aggressive maneuvers should consider engines nearer the upper end of the recommended range. Note: Instructions for mounting every possible engine cannot be incorporated into this manual. Although there are several glow engines suitable for powering the giant P-51, the U.S. Engines 41cc is featured. Modelers using another engine may refer to the instructions as a guide for mounting their engine in a similar way. If using the U.S. 41, the following items will be required:
❏ Great Planes Gasoline Engine Mount (GPMG2000) ❏ (4) 1/4-20 x 1-1/2" [38mm] hex-head bolts
and 1/4" [6mm] flat washers
❏ Prop Reamer (GPMQ5005)
Per the IMAA Safety Code, magneto spark- ignition engines must have a coil-grounding switch on the aircraft to stop the engine and
DECISIONS YOU MUST MAKE
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