Pilot's Operating Handbook
Section 1
General
Edition 0 - October 31, 2013
Rev. 4
Page 1.4.2
V
LO
: MaximumLandingGearOperatingSpeed isthemaximum speedat
which the landing gear can be safely extended or retracted.
V
MO
: Maximum Operating Speed is the speed limit that may not be
deliberately exceeded in normal flight operations.
V
R
: Rotation Speed is the speed at which rotation is initiated during
takeoff to achieve takeoff safety speed at screen height.
V
SO
: Stalling Speed or the minimum steady flight speed at which the
airplane is controllable in the landing configuration.
V
S1
: Stalling Speed or the minimum steady flight speed obtained in a
specific configuration.
V
x
: Best Angle of Climb Speed is the airspeed which delivers the
greatest gain of altitude in the shortest possible horizontal distance.
V
Y
: Best Rate of Climb Speed is the airspeed which delivers the
greatest gain in altitude in the shortest possible time.
Power terminology
Recovery altitude :
Maximumaltitudeat which it is possible, in standardtemperature, to
maintain a specified power.
Overheated start :
Engine start or attempt to start which causes the interturbine
temperature to be higher than the maximum value permissible
during start.
Flame out : Involuntary loss ofthe combustion chamber flame duringoperation.
GPU : Ground power unit.
Feathering : Actionwhich reducesthe dragof a propellerbypositioning bladesat
the pitch angle allowing minimal drag.
Maximum Cruise Power :
Power developed corresponding to outside flight level and
temperature conditions - refer to chapter 5 Performance.
Ng : Gas generator RPM.
Np : Propeller rotation speed.
Reverse : Drag produced when the propeller blade setting is negative.
RPM : Revolutions per minute.
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