SECTION
6
WEIGHT
&
BALANCE
Determine
arm,
weight
and
Moment/IOO
of the crew, passengers,
baggage
and
cabinet contents
from
Figure 6-2
and
enter
them
under
Payload
Computa-
tions in Figure 6-3.
The
crew
and
passenger loading table
is
applicable
only
when
the
CG
of
the occupant is
at
the location specified. Refer to
Section 7 for additional information about loading passengers
and
cargo.
If
the seats are in
any
other position than
stated
in Figure
6-2,
the
moment
must
be
computed
by
mUltiplying occupant weight times the
arm
in
inches. A point 9 inches forward of the intersection of the
seat
bottom
and
seat
back
with
seat
cushions
compressed
can
be
assumed
to
be
the occu-
pant
CG.
For
a reference in determining the
arm,
the forward face of the
cabin
doorway
structure
is
fuselage
station
213.60.
See
Figure 6-3. Total the Payload Computations items
and
enter the
resulting
Weight
and
Moment/IOO
in item
2.
See
Figure 6-3. Total items 1 (Basic
Empty
Weight)
and
2 (Payload) to
determine appropriate
entries
for item 3 (Zero
Fuel
Weight).
See
Figure 6-3.
Item
4 (Fuel Loading),
is
determined
from
the appli-
cable
columns
of Figure 6-2.
Total items 3
and
4 to determine item 5
(Ramp
Weight).
See
Figure 6-3. Subtract item 6 (Less
Fuel
For
Taxiing)
from
item 5
(Ramp
Weight)
to determine item 7 (Takeoff Weight). Enter item 7 in Figure
6-2 to determine
if
the loading
is
within allowable
limits.
If,the
point
falls
outside
of
the envelope,
it
will
be
necessary to
redistribute
the
load.
Refer to Section 5 for estimated fuel
used
during the
flight.
After
determining the fuel used, obtain the appropriate weights
and
Moment/IOO
from
Figure 6-2. Enter the
total
of these weights
and
Moment/IOO
in item 8
(Less
Fuel
To
Destination).
Item
9 (Landing
Weight)
is
determined
by
SUbtracting item 8
from
item
7.
Enter item 9 in Figure 6-2 to determine
if
the loading
is
within allowable
limits.
1f the point
falls
within the envelope, the· loading
is
approved.
If
the point
falls
outside the envelope,
it
will
be
necessary to
redis-
tribute
the load.
WEIGHT
AND
BALANCE
RECORD
The
Weight
and
Balance Record, see Figure 6-4, provides a record to
reflect
the continuous history of changes in airplane
structure
and/or
equipment
which
will
affect
the weight
and
balance of the airplane.
The
Basic
Empty
Weight
of your airplane
is
entered
at
the appropriate
location
on
the
Weight
and
Balance
Data
sheet as delivered
from
the fac-
tory.
Changes
to the
structure
or equipment should
be
entered
on
the
Weight
and
Balance
Record
when
any
modifications are
made
t~
the
airp~ane.
It
is
the
responsibility
of the airplane
owner
to assure
th1S
record
1S
up
to date, as
all
loadings will
be
based
on
the
latest
entry.
1
November
1979
6-5
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