SECfiON
l
GENERAL
PIPER
AIRCRAFT
CORPORATION
PA-28-161,
WARRIOR
II
(e)
Airplane
Performance
and Flight
Planning
Terminology
Climb
Gradient
Demonstrated
Crosswind
Velocity
Accelerate-Stop
Distance
Route
Segment
The
demonstrated ratio
of
the change
in
height
during
a
portion
of
a climb. to the
horizontal distance traversed in the same
time interval.
The
demonstrated
crosswind velocity
i~
the
velocity of the crosswind
component
for
which
adequate
control
of
the airplane
during
takeoff
and
landing was actually
demonstrated
during
certification tests.
The
distance required to accelerate
an
air-
plane to a specified speed
and,
assuming
failure of
an
engine at the instant
that
speed
is
attained.
to
bring the airplane
to
a stop.
A part of a route. Each end
of
that
part
is
identified by
(I)
a geographical location
or
(2) a
point
at
which a definite radio fix
can be established.
(f) Weight
and
Balance Terminology
Reference
Datum
Station
Arm
REPORT:
VB-1180
1-8
An
imaginary vertical plane from which all
horizontal distances
are
measured for
balance purposes.
A location along
the
airplane
fuselage
usually given in terms
of
distance from the
reference
datum.
The
horizontal distance
from
the reference
datum
to the center
of
gravity (C.G.)
of
an
item.
ISSUED: AUGUST 13,
1982
REVISED: JULY
15,
1983
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