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Thursday, October 11, 2012

Simple, Single Step Hydroplane.

 
























There are only few small aluminum boats featuring single step hulls. The concept is making in-roads with fiberglass construction being more amenable to be molded in quantity. Nevertheless I wanted to see a CFD'study for a 24' simple, single step hull. Numeca International, already mentioned in a previous post, provided the results.  sales@numeca.be
Being a hydroplane she presents 2 angles of attack with 2 planing areas. The image below shows her riding on points amidships and aft to get a moment of equilibrium. Speed as shown is 34.5 knots.







Recent interest, May 2014 led to preliminaries for a 28' version. This longer boat might end up having 
another step built-in.