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Doc. No. 7.01.05-E Rev. 5 15-Nov-2007 Page 1 - 7
vNO: Maximum Structural Cruising Speed. This speed may be exceeded only in smooth air, and then only with caution.
vS: Stalling Speed, or the minimum continuous speed at which the airplane is still controllable in the given configuration.
vS0: Stalling Speed, or the minimum continuous speed at which the airplane is still controllable in the landing configuration.
vS1: Stalling Speed, or the minimum continuous speed at which the airplane is still controllable with flaps and landing gear retracted.
vSSE: Minimum Control Speed for Schooling. Minimum speed necessary in case of one engine intentionally inoperative / idle (training purposes).
vx: Best Angle-of-Climb Speed.
vy: Best Rate-of-Climb Speed.
vYSE: Best Rate of-Climb Speed for one engine inoperative.
(b) Meteorological terms
ISA: International Standard Atmosphere. Conditions at which air is identified as an ideal dry gas. The temperature at mean sea level is 15 °C (59 °F), air pressure at MSL is 1,013.25 hPa (29.92 inHg); the temperature gradient up to the altitude at which the temperature reaches -56.5 °C (-69.7 °F) is -0.0065 °C/m (-0.00357 °F/ft), and above this 0 °C/m (0 °F/ft).
MSL: Mean Sea Level.
OAT: Outside Air Temperature.
QNH: Theoretical atmospheric pressure at MSL, calculated from the elevation of the measuring point above MSL and the actual atmospheric pressure at the measuring point.
Density Altitude: Altitude in ISA conditions at which the air density is equal to the current air density.
Indicated Pressure Altitude:
Altitude reading with altimeter set to 1,013.25 hPa (29.92 inHg).
Pressure Altitude: Altitude indicated by a barometric altimeter, which is set to 1,013.25 hPa
(29.92 inHg). The Pressure Altitude is the Indicated Pressure Altitude corrected for installation and instrument errors.
In this Airplane Flight Manual altimeter instrument errors are regarded as zero.
Wind: The wind speeds which are shown as variables in the diagrams in this manual should be regarded as headwind or tailwind components of the measured wind.
(c) Flight performance and flight planning
' AGL: Above Ground Level.
Demonstrated Crosswind Component: The speed of the crosswind component at which adequate maneuverabil-ity for take-off and landing has been demonstrated during type certification.
Doc. No. 7.01.05-E Rev. 5 15-Nov-2007 Page 1 - 9
MET: Weather, weather advice.
NAV: Navigation, route planning.
RoC: Rate of Climb.
(d) Mass and balance
CG: Center of Gravity, also called 'center of mass'. Imaginary point in which the airplane mass is assumed to be concentrated for mass and balance calculations. Its distance from the Datum Plane is equal to the Center of Gravity Moment Arm.
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