Jabiru J230-D 2020 Pilot Operating Handbook page 11

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Meteorological Terminology
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OAT – Outside Air Temperature – the outside free air static temperature.
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Airfield Pressure Height – The height registered at the surface of an aerodrome by an
altimeter with the pressure sub-scale set to 1013 hPa (29.92 inches Hg).
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Pressure Altitude – Altitude measured from standard sea-level pressure (1013 hPa/29.92
inches Hg) by a pressure or barometric altimeter corrected for position and instrument error.
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Indicated Pressure Altitude – the altitude actually read from an altimeter when the pressure
barometric sub-scale has been set to 1013 hPa (29.92 inches Hg).
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QNH – The local pressure setting that if set on the subscale of an altimeter will cause the
altimeter to indicate local altitude above mean sea level.
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Wind – The wind velocities to be used as variables on aircraft performance are to be
understood as the headwind or tail wind components of the reported winds.
Aircraft Performance and Flight Planning Terminology
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Climb Gradient – The ratio of the change in height during a climb, to the horizontal distance
travelled.
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Demonstrated Crosswind Component – The crosswind component, during take-off and
landing, for which adequate control of aircraft was actually demonstrated during certification
tests.
JP-FM-09 Revision:
Jabiru Aircraft
Model J230-D
Operating Manoeuvring Speed: the speed that an aircraft will stall in a nose-
up pitching manoeuvre before exceeding structural limits. V
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Never Exceed Speed: the limiting airspeed that may not be exceeded at any
time.
Maximum Structural Cruising Speed: the speed that should not be exceeded
except in smooth air and then only with caution.
Stalling Speed: or the minimum steady flight speed at which the aircraft is
controllable.
Stalling Speed: or the minimum steady flight speed at which the aircraft is
controllable in the landing configuration.
Best Angle-of-Climb Speed: the airspeed which delivers the greatest gain of
altitude in the shortest possible horizontal distance.
Best Rate-of-Climb Speed: the airspeed which delivers the greatest gain in
altitude in the shortest possible time.
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Pilot Operating Handbook
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28/2/2020
cannot exceed
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