PIPER
AIRCRAFT CORPORATION
PA-28-161,
WARRIOR
II
SECTION 6
WEIGHT AND BALANCE
SAMPLE
PROBLEM
A sample problem will demonstrate the use
of
the weight and balance
plotter.
Assume a basic weight
and
C.G.location
of
1300
pounds
at
85.00 inches
respectively.
We
wish to carry a pilot and 3 passengers. Two men weighing
180
and
200 pounds will occupy the front seats, and two children weighing
80
and
100
pounds
will
ride in the rear. Two suitcases weighing
25
pounds
and
20
pounds respectively, will be carried in the rear compartment.
We
wish to carry 48 gallons
of
fuel. Will
we
be within the safe envelope?
(a) Place a dot on the plotter grid
at
1300
pounds and 85.00 inches to
represent the basic airplane. (See illustration.)
(b) Slide the slotted plastic into position so that the dot
is
under the slot
for the forward seats,
at
zero weight. .
(c) Draw a line up the slot
to
the
380
pound position (180 + 200)
and
put
a dot.
(d) Continue moving the plastic
and
plotting points to account for
weight in the rear seats (80 +
100},
baggage compartment (45),
and
fuel tanks (288).
(e)
As
can
be
seen from the illustration, the final dot shows the total
weight to
be
2193 pounds with the C.G.
at
89.44. This
is
well
within
the envelope.
As
fuel
is
burned off, the weight and C.
G.
will
follow down the fuel line
and
stay within the envelope for landing.
ISSUED: AUGUST 13,
1982
REPORT:
VB-1180
6-17
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