Piper PA 28-181 User Manual

SECTION
6
Wf,IGHT AND BALANCE
PIPER
AIRCRAFT
CORPORATION
PA-28-t61,
aRcHf,R
II
The basic empty
weight and C.c. location
are recorded
in rhe Weishl
and Balance Data lorm
(Figure
ö-5r dnd rhe weight
and
Balance Rec;rd
(Figur€
6-7).
Th€
current values should
always b€
used. Whenever
new
equipmenr is added
or any nodificarion
work is done,
the mechanic
responsible for
the
work is
required to compute
a new
basic empty
weigh!
and C.G.
position
and to write these in
rhe Aircraft
Log Book
and the
Weight and Balance Record. The
own€r should
make sure that
it is done.
A weight and balance calculation is
n€cessary ind€termining
howmuch
fuel or baggage can
be boarded so as to keep
wirhin allowable
limirs.
Check
calculalions
prior
10 adding fuel to insure
against improper
Ioading.
The following
pages
are forms
used in weighing
an
airplane in
production
and in computing basic empry
weighr,
C.c.
posilion,
and useful
load. Note
that
the
useful
load
includes
usable fuel,
baggage,
cargo and
passengers.
Following this
is
the method for
compuring
takeoflweight
and
c.c.
6,3 AIRPLANf, WEIGHING
PROCf,DURE
A! the tim€ of licensing, Pip€r
Aircraft Corporarion provides
each
airplane
with the
basic
cmpty weighr and
cenrer of
grävily
locarion. This
data i! supplied by Figure 6-5.
The removal or addition of equipment
or airplane
modilLcations
can
affect the
bas;c
€mply
weight and cenler
of
graviiy.
The following is a
weighing
procedure
to
determine this
basic empty weight
and cenrer of
gavity
locarlon:
(a)
Preparation
(
l) Be certa in
r
hat
all items checked
in rhe airptane
equipme nr
list are installed
in the
proper
location
in rhe äirplane
(2)
Remove excessive
dirr,
grease,
moist ure,
foreign ilems
s uc h
as rags and tools lrom the
airplane before
weighing.
(3)
Defuel airplane.
Then open all luel
drains unril
al remain-
ing fu€l is drained.
Operat€ engine
on each tank
untit alt
undrainable Iuel is
used and engine
slops. Then
add rhe
unusable fu€l
(2.0
gallons
rotal.
1.0
gallons
each wing).
REPORT: VB-l120
6-2
ISSUf,D:
JULY 2. 1979
REVISED:
JUNE 29, 1984

Piper PA 28-181 Specifications

General

Manufacturer	Piper Aircraft
Engine	Lycoming O-360-A4M
Horsepower	180 hp
Wingspan	35 ft 6 in (10.82 m)
Height	7 ft 3 in (2.21 m)
Maximum Takeoff Weight	2, 550 lb (1, 157 kg)
Seating	4
Service Ceiling	14, 100 ft
Fuel Capacity	50 US gal (190 L)
Propeller	Fixed Pitch