Cessna 206H - Airplane Performance and Flight Planning Terminology

SOLOY TURBINE PAC SECTION 1
POHS CESSNA T206H/206H GENERAL
1-9
F.A.A. Approved May 23, 2003
ENGINE CONTROLS AND INSTRUMENTS (Continued)
PROPELLER
CONTROL
Cockpit control to set propeller RPM.
PROPELLER
OVERSPEED
GOVERNOR
A propeller gearbox mounted component which provides
overspeed protection in the event of a propeller
governor failure.
TACHOMETER
An instrument that indicates the speed of the gas
producer (N
1
) or the propeller (RPM).
TORQUE METER
An instrument that indicates engine torque output by
recording torque meter oil pressure in pounds per
square inch. (Torque X RPM is proportional to engine
power output delivered to the propeller gearbox.
STD
Standard temperature as defined in meteorological
terminology.
FF
Fuel flow in pounds per hour of fuel consumed.
AIRPLANE PERFORMANCE AND FLIGHT PLANNING
TERMINOLOGY
DEMONSTRATED
CROSSWIND
VELOCITY
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.
USABLE FUEL
Usable Fuel is the fuel available for flight planning.
UNUSABLE FUEL
Unusable Fuel is the quantity of fuel that cannot be
safely used in flight.
PPH
Pounds Per Hour is the amount of fuel (in pounds)
consumed per hour.
NMPG
Nautical Miles Per Gallon is the distance (in nautical
miles) which can be expected per gallon of fuel
consumed at a specific engine power setting and/or
flight configuration.
g
g is acceleration due to gravity.
MINIMUM FUEL
Minimum Fuel is the minimum amount of fuel as shown
in Section 2 for takeoff or steep climbs at airspeeds
below V
y
.
COURSE DATUM
Course Datum is the compass reference used by the
autopilot, along with course deviation, to provide lateral
control when tracking a navigation signal.
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