Section
I
General
VNO
Vs
VSO
Vx
Vy
BeECHCRAFT
Duchess
76
Maximum Structural Cruising Speed is
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 airplane is
controllable.
Stalling Speed or the minimum steady
flight speed at which the airplane is
controllable in the landing configura-
tion.
Best Angle-of-Climb Speed is the air-
speed which delivers the greatest gain
of altitude in the shortest possible hori-
zontal distance.
Best Rate-Of-Climb Speed is the air-
speed which delivers the greatest gain
in
altitude
in
the shortest possible time.
METEOROLOGICAL TERMINOLOGY
ISA
1-14
International Standard Atmosphere
in
which:
(1)
The air is a dry pertect gas;
(2)
The temperature at sea level is 15°
Celsius (59° Fahrenheit);
(3)
The pressure at sea level is 29.92
in. Hg (1013.2 millibars);
(4)
The temperature gradient from
sea level to the altitude
at
which
the temperature is
- 56.5°C
(-69.rF)
is
-0.00198°C
(-
0.003566°F) per foot and zero
above that altitude.
January
1978
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