Safe
Loading — Subpart C
Category One: Inboard and Sterndrive Boats
Let’s look at the definitions of the terms
in the formulae.
Maximum Displacement: We have
discussed it in section 4.0, we ran through calculations in
section 4.1, and we included an example in section 4.2. We
know it means maximum displacement below the static float-plane.
It is the number in pounds from Figure 5 (Example of Displacement
Calculations).
Boat Weight: The combination
of hull weight, deck and superstructure weight, weight of
permanent appurtenances, and weight of the full permanent
fuel tank.
Machinery Weight: The combination
weight of installed engines, control equipment, drive units,
and batteries.
NOTES:
- The boat weight includes the factory’s
heaviest production tolerances. Hull and deck weights may
vary; use the heaviest ones and be conservative.
- Permanent appurtenances means any
factory-installed, non-portable, permanently attached equipment,
furniture or other feature such as canopy tops, camper tops,
coolers, cushions, etc.
- Fuel tanks must be permanently installed;
any other portable or removable tank shall not be included.
The Coast Guard, when testing a boat of this
category, will use the immersion method for finding the maximum
displacement and then use the second formula: displacement
minus boat weight, divided by seven.
We have gone through all the required calculations
to figure this weight. We will, after discussing persons capacity,
work out an example of both requirements.
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