Subject: [harryproa] rocker of not , rock & roll.......or is that pitch
From: "tsstproa" <tsstproa@yahoo.com>
Date: 5/8/2012, 2:30 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Did a new model with rockered 36'' hull 36' in real life and a 24'' both have identical rocker curve and are 4'' or 4' tall at center. If you were to place each hull next to one another on a flat surface the windward hull follows the rocker contour of the leeward giving the windward hull, the shorter hull, taller stems. Both hulls are connected to were they sit level on with both keels touching flat table top.

This gives roughly a 1'' lift in keel bows on leeward hull and a 1/2'' lift in keel bows of windward hull.

Hull Designed to sit on a 8 - 12'' waterline on leeward hull and 6-10'' waterline leeward. Scale model would be 3/4 -1'' and 1/2 -3/4 inch roughly.

So far I'm not convinced that this set up is the best. It seems that the windward hull is pushing more water. Seeing the bow wave is higher and more predominate than the leeward hull when sailing.

Comparing to what I have in existing tests of rock no rocker hulls the no rocker seems to be better in someways, not all mind you, but better in what I'm looking for.

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