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SECTION 1
GENERAL
1.19 SyMBOLS, ABBREVIATIONS AND TERMINOLOGy (continued)
V
sse
V
x
V
y
(b) Meteorological Terminology
IMC
ISA
OAT
Indicated
Pressure Altitude
REPORT: VB-2307
1-10
Intentional One Engine Inoperative Speed
is a minimum speed selected by the manu-
facturer for intentionally rendering one
engine inoperative in flight for pilot training.
Best Angle-of-Climb Speed is the airspeed
which delivers the greatest gain of altitude in
the shortest possible horizontal distance.
Best Rate-of-Climb Speed is the airspeed
which delivers the greatest gain in altitude in
the shortest possible time.
Instrument Meterological Conditions.
International Standard Atmosphere in
which:
(1) The air is a dry perfect gas;
(2) The temperature at sea level is 15°
Centigrade (59° Fahrenheit);
(3) The pressure at sea level is 29.92
inches Hg (1013.2 mb)
(4) The temperature gradient from sea
level to the altitude at which the
temperature is -56.5°C (-69.7°F) is
-0.00198°C (-0.003564°F) per foot
and zero above that altitude.
Outside Air Temperature is the free air static
temperature obtained either from inflight
temperature indications or ground meteoro-
logical sources, adjusted for instrument error
and compressibility effects.
The number actually read from an altimeter
when the barometric subscale has been set to
29.92 inches of mercury (1013.2 millibars).
PA-44-180, SEMINOLE
ISSUED: June 5, 2013
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