TM 9-1550-416-14&P
NOTE
NOTE
Most engines with a K & B carburetor will idle
properly without adjustment to the idle fuel ad-
dicate in the green area. `If not, the internal bat-
justment screw. If adjustment is necessary turn
tery requires charging before operation. (For
the screw in very small increments. Once idle
mixture is adusted, it will remain at that setting
b. On the receiver and servo/battery group, set
and only the high speed needle valve will need to
be adjusted for future flights.
switch as required.
p. Final adjustments are made with the high
speed needle for flight. Adjust the needle valve so
c. Check operation of ailerons by operating roll
that the fuel mixture is slightly rich since it will
portion of control stock and observing action as
lean out when in flight. Turning the needle valve
in a clockwise direction will cause the engine to
operation of elevators by operating pitch portion
lean out and counter clockwise will cause the en-
of control stock and observing action as indicated
gine to become richer in fuel mixture.
q. Operate the control throttle on transmitter
d. Check operation of throttle by operating the
from just above low limit to upper limit. Engine
throttle control.
should run smoothly from idle to maximum RPM.
If engine coughs or dies, mixture is too rich. Re-
2-16. LAUNCHING TECHNIQUES.
peat procedures above.
WARNING
WARNING
Be sure that no personnel other than
The last procedure prior to launching
operators are in the immediate area
the aircraft consists of verifying that
the receiver and servo/battery group is
the area adjacent to each side of the
turned on and that the control link be-
propeller is a danger zone when the
tween the transmitter and aircraft is
engine is running. Keep all personnel
operating. If the aircraft is launched
without control, a crash will result
clothing does not become tangled in
that may endanger personnel.
the propeller.
It is extremely hazardous to attempt to
a. The person launching the target will stand to
launch or fly the aircraft when winds
the left and beneath the aircraft. (For visual re-
are in excess of 25 knots.
b. Grasp the bottom of the fuselage with left,
tended to the proper length prior to
hand slightly ahead of the center in the molded-in
grip and grasp the rear of the fuselage with right
hand.
2-15. CONTROL LINK Check.
a. On the transmitter, position controls as fol-
WARNING
lows:
Never launch or fly the aircraft in the
POWER SWITCH
ON
direction of other personnel or toward
THROTTLE
MAXIMUM
buildings, structures, or vehicles.
PITCH-TRIM
MID-RANGE
c. Hold the aircraft, upward at a 10 to 20 de-
ROLL-TRIM
MID-RANGE
gree angle and point it in the direction of the
BAND SELECTOR
launch area. Launch into the wind.
SWITCH
AS REQUIRED
CHANNEL SWITCH
AS REQUIRED
d. Look at target controller and obtain positive
RF SWITCH
AS REQUIRED
indication for release of target.
2-18