Alrcrnn Publications
Pipcr Comanchc
250
(Early Model)
Section
-
1
General
SYMBOLS. ABBREVIATIONS AND TERMINOLOGY
1.)
Alert Notations:
**
NOTE
**
An operating procedure or practice which it is essential to emphasize.
**
CAUTION
**
An
operating procedure or practice which if not strictly observed will result in
damage to equipment.
**
WARNMG
**
An
operating procedure or practice which if not carefblly followed will result in
personal injury or loss of life.
2.)
Glossary:
The following is an alphabetical listing of terminology used in this Handbook and other Piper
literature for the Comanche. It includes precise definitions of terms used in: meteorology,
engine and power plant operation, weight and balance computations, aircraft performance and
flight planning, and terms of general aviation usage.
Absolute Altitude The actual height of
an
aircraft above the surface of the ground, as read by a
radar altimeter.
Absolute Ceiling The highest altitude an aircraft can obtain. Vx and Vymeet at the absolute
ceiling, and any airspeed above or below this speed will result in a loss of altitude.
Accelerate-Go Distance The distance required to accelerate a multi-engine aircraft to a specified
speed and, assuming engine failure at the instant that speed is attained, feather the propeller
on the inoperative engine and continue the takeoff to a height of
50
feet
AGL.
Accelerate-Stop Distance The distance required to accelerate an aircraft to lift-off velocity and,
assuming engine failure at the instant that speed is attained, to bring the aircraft to a
complete stop in the shortest possible distance on the runway.
AD Airworthiness Directive
-
A
notice issued by the
FAA
for the purpose of amending the
certification of an aircraft.
A&P
Mechanic Airframe and Powerplant Mechanic
-
An
aircraft mechanic who is certified by
the
FAA
to perform certain maintenance and inspections.
Arm
The horizontal distance from the reference datum to the center of gravity of
an
item.
Basic
Empty
Weight The standard empty weight of the aircraft plus the weight of unusable fbel
and all optional equipment that is installed on the aircraft. Original Piper documentation
included engine oil in this figure in the twin, but not the single-engine, Comanche.
Best Glide (Endurance) The engine-out airspeed which results in the greatest time aloft in a
glide.
Copyright:
1993
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1-11
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