Boat Speed Calculator

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Hull Type Hull Speed Displacement, Gerr Power Required
 

Vessel Hull Type

Select a boat hull type to determine what formula is more applicable.
David Gerr’s displacement speed formula, Wyman’s speed formula
and/or Crouch’s planing speed formula.


Boat Hull Type

Displacement Deep V, Sail boat, Kayak, Ship etc.
Semi-Displacement Flat V, Power Boat
Planing Flat bottom, go fast power boat