JP-FM-06
Revision:
0
1
2
1 Dec 2008
Page 1-8
1.6.3 Meteorological Terminology
•
ISA –
International Standard Atmosphere
in which:
The air is a dry perfect gas:
The temperature at sea level is 15° C (59° F) :
The pressure at sea level is 1013 hPa (29.92 inches Hg) :
The temperature gradient from sea level to the altitude at which the
temperature is -56.5° C (-69.7° F) is 0.00198° C (0.003566° F) per foot, and
zero above that altitude.
•
OAT –
Outside Air Temperature
–
the outside free air static temperature.
•
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).
•
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.
•
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).
•
Station Pressure –
Actual atmospheric pressure at field elevation.
•
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.
•
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.
1.6.4 Power Terminology
•
Take-Off Power –
Maximum power permissible for take-off.
•
Maximum Continuous Power –
Maximum power that is allowed to be used
continuously during flight.
1.6.5 Engine Controls and Instruments
•
Throttle –
The control which the pilot uses to control the engine RPM.
•
Tachometer –
The instrument that indicates the engine RPM.
1.6.6 Aircraft Performance and Flight Planning Terminology
•
Climb Gradient
– The ratio of the change in height during a climb, to the horizontal
distance travelled.
•
Demonstrated Crosswind Component
– The crosswind component, during take-off
and landing, for which adequate control of aircraft was actually demonstrated during
certification tests.
Summary of Contents for J160-C
Page 2: ...This page intentionally left blank...
Page 3: ......
Page 5: ...This page intentionally left blank...
Page 7: ...This page intentionally left blank...
Page 9: ...This page intentionally left blank...