Safe
Loading — Subpart C
Category Two: Outboard Boats
Example of Calculations for Maximum Weight
Capacity and Persons Capacity
Let’s assume that the maximum persons
capacity above in Step 3 came to 545 lb. According to the
regulation, the boat must be subjected to the dry stability
test. Let’s also assume that during the test, and after
locating the dry weights of the engine, controls, battery
and fuel tank, we added a total of 500 lb. on one side of
the boat, and then on the other side, to obtain maximum inclination
(or list) before water ingress. You now must compute as per
the regulation:
Persons capacity in pounds = 500 / .60
Persons capacity in pounds = 833 lb.
The law states that we must use the lesser of
the two values found:
- Persons capacity (lb.) in Step 3: (as
assumed above) 545 lb. or
- Persons capacity (lb.) in dry stability test:
833 lb.
Using 545 lb., because it is the lesser of the
two figures, we may then calculate the persons capacity in
whole numbers as above:
| Persons capacity (no.) = |
32 + persons capacity (lb.) in test |
| |
141 |
| Persons capacity (no.) = |
32 + 550 lb. |
| |
141 |
Persons capacity (no.) = 4.12, rounded down
to 4 persons.
The manufacturer now has the information to
certify the boat, and the label may read:
11 persons or 1,513 lb.
2,063 lb. persons, motor, gear
100 horsepower motor
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