Power Terminology; Airplane Performance And Flight Planning Terminology; Weight And Balance Terminology - Daher-Socata TBM 900 Pilot's Information Manual

SECTION 1
GENERAL
V : Best Angle of Climb Speed is the airspeed which delivers the greatest gain of altitude in the
x
shortest possible horizontal distance.
V : Best Rate of Climb Speed is the airspeed which delivers the greatest gain in altitude in the
Y
shortest possible time.

POWER TERMINOLOGY

Recovery altitude :
Maximum altitude at which it is possible, in standard temperature, 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 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 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.
SHP : Shaft Horsepower.
TRQ : Torque.

AIRPLANE PERFORMANCE AND FLIGHT PLANNING TERMINOLOGY

Climb gradient :
Is the ratio of the change in height during a portion of climb, to the horizontal distance traversed in
the same time interval.
Demonstrated crosswind velocity :
Is the velocity of the crosswind component for which adequate control of the airplane during takeoff
and landing was actually demonstrated during certification tests. The value shown is not
considered to be limiting.
g : Is acceleration due to gravity.
Usable fuel : Total fuel which can be effectively consumed by the engine.

WEIGHT AND BALANCE TERMINOLOGY

Reference datum :
Datum perpendicular to the longitudinal airplane centerline from which all distances are measured
for balance purpose.
Page 1.4.2
PILOT'S OPERATING HANDBOOK
Edition 0 -- October 31, 2013
Rev. 1