Cessna R182 - Page 8

SECTION
T
GENERAL
CESSNA
MODEL
R182
NMPG
Nautical
Milea Per
Gellon
is
t&e dista'nce
(in
nautical
miles)
which ctn
be
expected
per gallon
of
fuel consumed
at
a specific
engine
power
setting
and/or
flight configura-
'^
tion.
g
g
is acceleration
due
to
gravitY.
WEIGHT
AND..BALANCE
TERMINOLOGY
Reference
Reference
DEhrm
is an
imaginar5l
vertical
plane
from
Datum
which all
horizontal
dista,nces
&re
meaaured
for balance
Purposes.
station
stetion
is a
location
along
the
airplane
fuselage
given
in
terns
of tJre distance
from
the reference
datum.
Ar:m
AlE
is tJre
horizontal
distance
from
the reference
datum to
the center
of
gravity
(C.G.)
of
an
item.
Moment
Monent
is tJre
product of tJoe
qeight
of
an
item
multipliid
by
its arm.
(Moment
divided
by tJre
constant
1fiD
is used in
this
bandbook
to simplify.balance
calculations
by reduc-
,--.
ing
the number of
digits.)
Center
of
Center
of Gravit5r
is tJre
point
at
which
nn
airplane, or
Grq,yity
equipment,
would bala'nge
if.Suspqnded.
Ils distance
from
(C.G.)
the
reference
datum
is
foundby
dividingtJretotalmoment
--
by
the total
wdight
of the
airplane.
C.G.
Center
of Gravidl
Arm
is tJre
ann
obtained
by
adding
tJre
Arm
airplane's
individual
moments
a,nd
dividing
tJre sum by
the total
weight.
C.G.
Gente:
of Gravity
r.rrnrts
are
tJle extrome
center
of
gqlvity
Limits
locations
within-which
tJre
airplane
must be
operated at a
given
weight.
Standard
Standard
EmPty Weight
is
t'Ire
weight of
a standard air-
Empty
pla,ne,
includiag
unusable
fuel, full
operating
fluids
and
Weight
fullrengine oil.
Basic Empt5r
Basic Empty lteight
is tJre standard
empt5r
weight
plus
tJle
Weight
weight
of optional equipment.
Useful
Usefirt
Loed is the difference
between
ra,mp
weight andthe
Load
basic empty
weight.
1-8