Cessna 152 - Page 14

SECTION
1
GENERAL
Center
of
Gravity
(C.G.)
C.G.
Ann
C.G.
Limits
Standard
Empty
Weight
Basic
Empty
Weight
Useful
Load
Maximum
Ra.mp
Weight
Maximum
Takeoff
Weight
Maximum
Landing
Weight
Tare
1-8
CESSNA
MODEL
152
by
its
ann.
(Moment
divided
by
the
constant
1000
is
used
in
this
handbook
to
simplify
balance
calculations
by
reduc-
ing
the
number
of
digits.)
Center
of
Gravity
is
the
point
at
which
an
airplane,
or
equipment,
would
balance
if
suspended.
Its
distance
from
the
reference
datum
is
found
by
dividing
the
total
moment
by
the
total
weight
of
the
airplane.
Center
of
Gravity
Arm
is
the
arm
obtained
by
adding
the
airplane's
individu.al
moments
and
dividing
the
sum
by
the
total
weight.
Center
of
Gravity
Limits
are
the
extreme
center
of
gravity
locations
within
which
the
airplane
must
be
operated
at
a
given
weight.
Standard
Empty
Weight
is
the
weight
of
a
standard
air-
plane,
including
unusable
fuel,
full
operating
fluids
and
full
engine
oil.
Basic
Empty
Weight
is
the
standard
empty
weight
pl
us
the
weight
of
optional
equipment.
Useful
Load
is
the
difference
between
ramp
weight
and
the
basic
empty
weight.
Maximum
Ramp
Weight
is
the
maximum
weight
approved
for
ground
maneuver.
(It
includes
the
weight
of
start,
taxi
and
runup
fuel.)
Maximum
Takeoff
Weight
is
the
maximum
weight
ap-
proved
for
the
start
of
the
takeoff
run.
Maximum
Landing
Weight
is
the
maximum
weight
ap-
proved
for
the
landing
touchdown.
Tare
is
the
weight
of
chocks,
blocks,
stands,
etc.
used
when
weighing
an
airplane,
and
is
included
in
the
scale
read-
ings.
Tare
is
deducted
from
the
scale
reading
to
obtain
the
actual
(net)
airplane
weight.
1
July
1978