Rans Inc. Section 1
Model S-7LS COURIER General Information
Revision - B May 8, 2007 1- 18
METEOROLOGICAL TERMINOLOGY
OAT Outside Air Temperature is the free air static temperature
STANDARD
TEMPERATURE Standard Temperature is 15 ° C at sea level and decreases
approximately 2° C for each 1000 ft of altitude.
PRESSURE
ALTITUDE Pressure Altitude is the altitude read from an altimeter when the
barometric scale has been set to 29.92 inches of mercury (1013
mb).
ENGINE POWER TERMINOLOGY
BHP Brake Horsepower is the power developed by the engine.
RPM Revolutions per Minute is the engine speed
STATIC RPM Static RPM is engine speed attained during a full throttle engine
run up with the airplane on the ground and stationary.
MAXIMUM
CONTINUOUS
POWER Maximum power permissible continuously during flight.
AIRPLANE PERFORMANCE AND FLIGHT PLANNING TERMINOLOGY
DEMONSTRATED
CROSSWIND
VELOCITY The 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 flight test.
USABLE FUEL Usable Fuel is the fuel available for flight planning
UNUSABLE FUEL Unusable Fuel is the quantity of fuel that can not be safely used
during flight.
GPH Gallons per Hour is the amount of fuel consumed per hour.
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