V
MO
Maximum Operating Speed:
the speed limit that may not be
deliberately exceeded in normal flight operations.
V
R
Rotation Speed: the speed at which rotation is initiated during
takeoff to achieve takeoff safety speed at screen height.
V
S0
Stalling Speed: the minimum steady flight speed at which the
airplane is controllable in the landing configuration.
V
S1
Stalling Speed: the minimum steady flight speed obtained in a
specific configuration.
V
X
Best Angle of Climb Speed: the airspeed which delivers the
greatest gain of altitude in the shortest possible horizontal
distance.
V
Y
Best Rate of Climb Speed: the airspeed which delivers the
greatest gain in altitude in the shortest possible time.
Power Terminology
Recovery
altitude
Maximum altitude at which it is possible, in standard
temperature conditions, to maintain a specified power.
Hot start Engine start or attempt to start that causes the interturbine
temperature to be higher than the maximum value permissible
during start.
Flameout Involuntary loss of the combustion chamber flame during
operation.
GPU Ground Power Unit
Feathering Action which reduces the drag of a propeller by positioning
blades at the pitch angle creating minimal drag.
Maximum
Cruise Power
Power developed in relation to outside flight level and
temperature conditions.
Ng Gas generator RPM
Np Propeller rotation speed
Reverse Drag produced when the propeller blade setting is negative.
RPM Revolutions Per Minute
SHP Shaft Horsepower
TRQ Torque
Airplane Performance and Flight Planning Terminology
Climb gradient The ratio of the change in height during a portion of climb to the
horizontal distance traversed during the same time interval.
Section 1
General
Pilot's Information Manual
PIM TBM 960 - Edition 0
Rev. 00
Page 1.4.2
PIM - DO NOT USE FOR FLIGHT OPERATIONS
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