Piper ARCHER II - Sample Problem

SECTION
6
PIPER
AIRCRAFT
CORPORATION
WEIGHT
AND
BALANCE
PA-28-181,
ARCHER
II
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
Figure
6-17.)
(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.
REPORT:
VB-1120
ISSUED:
MAY
29,
1980
6-12b
:
REVISED:
FEBRUARY
2,:1990-