Appendix Babbreviations And Terms - Beechcraft C-12C Operator And Technical Reference Manual

For the purpose of this manual, the following
abbreviations and terms apply.
technical manuals for additional terms and limits:
B-1. AIRSPEED TERMINOLOGY
CAS Calibrated airspeed is indicated
airspeed corrected for position and
instrument error.
GS Ground speed is the speed of the
aircraft relative to the ground
IAS Indicated airspeed is the speed as
shown on the airspeed indicator and
assumes no instrument error
KTS Knots
M Mach number.
airspeed to the speed of sound.
M Maximum operating Mach number.
mo
M varies with altitude.
mo
TAS True airspeed is calibrated airspeed
corrected for altitude, temperature,
pressure, and compressibility effects
V Takeoff
1
maximum speed below which the
pilot must initiate the first action
(brake application) to discontinue
the takeoff. Above V
must be continued.
V Takeoff Safety Speed.
2
attained at 35 feet above the runway
and is the speed to be maintained
during climb to clear an obstacle
V Maneuvering speed is the maximum
a
speed at which application of full
available aerodynamic control will
not overstress the aircraft.
V One engine inoperative enroute
enr
climb speed with the remaining
engine
power setting for the condition,
landing gear and flaps retracted.
V Design flap speed is the highest
f
speed permissible at which wing
flaps may be actuated.
V Maximum flap extended speed is
fe
the highest speed permissible with
APPENDIX B
ABBREVIATIONS AND TERMS
See appropriate
The ratio of true
decision speed.
, the takeoff
1
Must be
at maximum continuous
V
le
V
lo
V
mca
The
V
mcg
V mo
V
ne
V
r
V
ref
V
s
TM 1-1510-218-10
wing flaps in a prescribed extended
position.
Maximum landing gear extended
speed is the maximum speed at
which an aircraft can be safely flown
with the landing gear extended.
Maximum landing gear operating
speed is the maximum speed at
which the landing gear can be safely
extended or retracted.
The minimum flight speed at which
the aircraft is
controllable as determined
accordance with Federal Aviation
Regulations. Aircraft Certification
conditions include
becoming inoperative and propeller
windmilling; up to a 5q bank toward
the operative engine; takeoff power
on operative engine; landing gear
up; flaps up; and most rearward CG.
This speed has been demonstrated
to provide satisfactory control above
power off stall speed (which varied
with weight, configuration, and flight
attitude).
Ground minimum control speed.
Maximum operating limit speed.
Not deliberately exceeded in any
phase of flight (climb,
descent) unless a higher speed is
specifically authorized for flight test
or pilot training.
Never exceed speed.
Rotation speed. The speed at
which aircraft rotation is initiated.
Varies with weight, altitude, and
temperature.
The indicated airspeed that the
aircraft should be at when 50 feet
above the runway in the landing
configuration.
Power off stalling speed or the
minimum steady flight speed at
which the aircraft is controllable.
directionally
in
one engine
cruise,
B-1