Instructions:

• Enter your data in the form.
• Try to use accurate information, the results are only as good as the data you enter.
• Press the calculate button to display the results.
• Using the browser "back" button from the results page will allow you to change individual items without having to re-enter everything again.

  Displacement / Semi-displacement Hull Calculation

Waterline length of vessel	Feet
Beam at the waterline	Feet
Hull draft (excluding keel)	Feet
Vessel displacement weight	Pounds
Number of engines
Maximum horsepower of each engine	HP
Maximum engine R.P.M.	RPM
Gear ratio	: 1
Number of shaft bearings between the gear box and the propeller
Desired maximum speed (calculations will show maximum speed based on available HP, and required HP to attain your desired speed)	Knots 1 knot = 1.1508 mile per hour