Starcraft 2005 - Hitch-to-Weight Ratio and Load Calculations

Net Carrying Capacity (NCC) - Means the maximum.
weight
of
all
personal
belongings:
food,
fresh
water,
LP
gas,
tools,
dealer
installed
accessories,
ete.,
that
can
be
carried
by
the
trailer,
NCC
is
equal
to
or
less
than
GVWR
minus UVW Tongue or Hitch Weight.
Following
are
a
couple
simple
formulas
to
express
the
above
Hitch-to-Weight Ratio
To
assure
proper
and
safe
handling
of
your
camper
behind
your
tow
vehicle,
cargo
should
be
distributed
so
that
9
to
12
Percent
of
the
total
weight
is
on
the
hitch
ball.
Total
weight
is
ioaded,
ready
to
travei
weight,
which
couid
be
iess
than
GVWh,
but
never
more
than
GVWR.
Also,
when
distributing
load,
be
careful
not
to
exceed
GAWR,
NOTE:
The
total
tire
capacity
(e.g.
5.30-12C
©1045
each
x
2
=
2090)
is
not
required
to
equal
GVWR
since
9
to
12
percent
will
be
on
the
hitch
ball.
For
example,
a
camper
could
have
a
GWA
of
2,340
pounds,
which,
at
first
glance,
would
appear
to
overload
a
pair
of
12"
load
range
C
tires
with
a
total
combined
capacity
of
2,090
pounds.
In
fact
they
are
not
overloaded
as
2,340
-
281
(12%
of
2340)
equals
2,059,
31
pounds
under
the
‘combined
tire
capacity
of
2,090,
Table
1:
Load
Calculations
Calculation
The Gross Vehicle Weight Rating (GVWR)
Minus the total weight of the empty trailer
Equals the net CARRYING CAPACITY
‘The weight of the left wheel (with load)
Plus
the
weight
of
the
right
wheel
(with
load)
Equals the AXLE WEIGHT (AW)*
The Gross Axle Weight Rating (GAWR)
Minus the AW of the loaded camper
Tells if the GAWR has been exceeded
The actual hitch weight (with load)
Plus the Axle Weight (with load)
Equals
the
TOTAL
VEHICLE
WEIGHT
of
the
camper
‘The
Gross
Vehicle
Weight
Rating
(GVWR)
Tells if the GVWR has been exceeded
Minus the TOTAL WEIGHT of the loaded camper -
Desired Condition
‘The weight of the right and left wheel
should be approximately equal.
‘The AW should be less than the GAWR.
NOTE: If the tongue weight is below 9%
or
above
14%
of
the
total
weight,
make
changes in the weight distribution to bring
the tongue weight within limits.
‘The
TOTAL
WEIGHT
of
the
loaded
camper
should
be
less
than
GVWR.
*The
AW
can
be
determined
by
weighing
with
both
tires
on
th
distribution
cannot
be
determined
unless
each
side
is
weighed
s
ale at the same time, but side-to-side weight
parately.