Vessel Documentation Calculator  

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Vessel Documentation Requirement Calculator
Multi-Hull

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This calculator is to be used only as a pre-tonnage evaluator to determine if your vessel may qualify for Coast Guard documentation. Mid Atlantic Sail is in no way affiliated with the US Coast Guard.

For determination of your vessels actual tonnage documentation, you will need to use the US Coast Guard's Application for Simplified Measurement.
The following is for twin hull and tri-hull vessels that are connected only by a structure that is not part of the buoyant hull envelope, such as tubing and beams. If the connecting structure is part of the buoyant hull envelope, the vessel is treated as if it were a single hull vessel and would use the Mono-hull calculator.

Enter only the measurements for one hull of a twin hull vessel
or
Enter only the measurements for one of the outer hulls of a trimiran.

Length: ft        inches

Beam: ft        inches

Depth: ft        inches



Enter only the measurements for the center hull of a trimiran in the form below. (Do not use for Twin hull vessels)
Length: ft        inches

Beam: ft        inches

Depth: ft        inches

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  Note: To reuse! This calculator must be reset to work properly.

Tonnage:

Note:A vessel is eligible to be measured using this simplified Measurement
System if it is either: 1) under 79 feet in overall length;
or 2) a non self-propelled or recreational vessel.

Note:  Vessel's over 5 net tons are eligible to have Coast Guard Documentation.

-Note- 

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