SECfiON 6 PIPER AIRCRAfT
CORPORATION
WEIGHT AND BALANCE PA.28.I8I,
ARCHER
II
SAMPLE PROBLEM
A
sanple
problem
will
demonstralc thc use of the weight and bälance
plo!1er
Assume
a basic weighr änd C.G. location
of
1300
pounds
al85.00
inches
respectively.
We wish to carry a
pilot
and
3
passengers.
Two mcn
wcighing
180
and 200
pounds will
occupy the fronr
sea1s, and lwo children
weighing
80 and
100
pounds
will
ridc in the rcär. Two suitcases weighing 25
pounds
and 20
pounds
respeclively, will
be canicd in the reäJ comparfinent- We
wish
!o carry:18
gällons
of fuel. Wi[ we
be
wirhin
üe safc cnvelope?
r
(ä)
Place
a
dot on
the
plotrcr grid
ar 1300
pounds
and 85.00 inches
to
I
represent
the basic airpiane.
(See
illustrarion Figure
6-17.)
(b)
Slidc üe slotted
plastic
into
posidon
so that üe dot is under rhe slor
for Lhe forwärd seäts,
at
zero weigh!.
(c)
Draw
a
line
up lhe slot to the 380
pound posirion (180
+
2m) aid
pu!
a do!.
(d)
Conlinuc
moving
the
plastic
and
plolling poinrs
to account for
weight in
lhc
rcar
seaß
(80
+ i00),
baggage comparrmenr
(15),
and
fuel
lanks
(288).
(e)
As
can bc scen
from
rhe illustrarion,
lhc l-rnal dor shows the roral
weighr 1o
be
2193
pounds
wirh
rhe
C.c. a! 89.4,1. This is weil wirhin
oe envclope.
As fuel
is bumed off,lhe weigh!
and C.c. will follow
down the fuel line
and stay wilhin
the covclope for landing.
REPORT: VB-1120
6-l2b
ISSUED; MAY
29, 1980
REVISED: t'EBRUARY
2, 1990