User Manual
40
Step 1
Completely read the instructions included with your
engine and follow the recommended break-in procedure.
Step 2
At the field, adjust the engine to a slightly rich setting at
full throttle and adjust the idle and low-speed needle so
that a consistent idle is achieved.
Step 3
Before you fly, be sure that your engine idles reliably,
transitions and runs at all throttle settings. Only
when this is achieved should any plane be considered
ready for flight.
The following control throws offer a good place to start
with your first flights. We recommend only one rate
setting for the P-51D. As you become more familiar
with the handling of your model, you may wish to add
a second rate setting.
Once the control throws for the ailerons and flaps have
been set, tighten the 4-40 nuts against the clevises to
prevent them from loosening during flight. It is also
highly suggested to use threadlocking compound.
Recommended Control Throws
Low rate High rate
Aileron 1/2" (14°) up 3/4" (18°) up
1/2" (14°) down 3/4" (18°) down
Elevator 5/8" (12°) up 3/4" (15°) up
5/8" (12°) down 3/4" (15°) down
Rudder 1
7
/
8
" (20°) left 2
1
/
2
" (30°) left
1
7
/
8
" (20°) right 2
1
/
2
" (30°) right
Flaps 1
1
/
8
" (15°) down 2
1
/
2
" (38°) down
An important part of preparing the aircraft for flight is
properly balancing the model. This is especially important
when various engines are mounted.
Caution: Do not inadvertently skip this step!
The recommended Center of Gravity (C.G.) location for
the P-51D 1.50 is 6
3
/
8
" behind the leading edge of
the wing measured at the fuselage sides. If necessary,
move the battery pack or add weight to either the nose
or the tail until the correct balance is achieved. Stick-on
weights are available at your local hobby shop and work
well for this purpose.
Adjusting the Engine
Recommended CG
Control Throws