TM 1-1510-224-10
RPM
Revolutions Per Minute.
ential pressure from the out-
lets.
SHP
Shaft horsepower. The horse-
power imparted to the propel-
Turbine Gas Temperature
Two gages on the instrument
ler shaft.
(TGT)
panel indicate the temperature
Static Power
The power which must be
between the compressor and
The power which must be
available for takeoff without
exceeding engine limitations.
B-5. GRAPH AND TABULAR TERMINOLOGY.
Takeoff Power
The maximum power avail-
AGL
Above ground level.
able from an engine for take-
off, limited to periods of five
Best Angle of Climb
The best angle-of-climb speed
minutes duration.
is the airspeed which delivers
the greatest gain of altitude in
B-4. CONTROL AND INSTRUMENT
the shortest possible horizontal
TERMINOLOGY.
distance with gear and
Condition Lever (Fuel
The fuel shut-off lever actuates
flaps up.
Shut-off Lever)
a valve in the fuel control
Best Rate of Climb
The best rate-of-climb speed
unit which controls the flow
is the airspeed which delivers
of fuel at the fuel control out-
the greatest gain of altitude in
let and regulates the idle
the shortest possible time
range from LOW to HIGH.
with gear and flaps up.
Nl Tachometer (Gas Gen- The tachometer registers the
Clean Configuration
Gear and flaps up.
erator RPM)
RPM of the gas generator
with 100% representing a gas
Demonstrated Crosswind
The maximum 90° crosswind
generator speed of 37,500
component for which
RPM.
adequate control of the air-
craft during takeoff and land-
Power Lever (Gas Gen- This lever serves to modulate
ing was actually demonstrated
erator N1 RPM)
engine power from full
during certification tests.
reverse thrust to takeoff. The
position for idle represents
Gradient
The ratio of the change in
the lowest recommended
height to the horizontal distance,
level of power for flight
usually expressed in
operation.
percent.
Propeller Control Lever This lever requests the control
Landing Weight
The weight of the aircraft at
(N2 RPM)
to maintain RPM at a selected
landing touchdown.
value and, in the maximum
Maximum Zero Fuel
Any weight above the value
decrease RPM position, feathers
Weight
given must be loaded as fuel.
the propeller.
MEA
Minimum Enroute Altitude.
Propeller Governor
This Governor will maintain
the selected propeller speed
Ramp Weight
The gross weight of the air-
requested by the propeller
craft before engine start.
control lever.
Included is the takeoff weight
plus a fuel allowance for start,
Torquemeter
The torquemeter system
taxi, run-up and take-off
determines the shaft output
ground roll to lift-off.
torque. Torque values are
obtained by tapping into two
Route Segment
A part of a route. Each end of
outlets on the reduction gear
that part is identified by a
case and recording the differ-
geographic location or a point
at which a definite radio fix
B-3
