Thursday, December 24, 2009

What's that boat in my mouth?

Had an idea for a big boat (well bigger than a moth). It's a variation of someone elses idea for a small sports boat which used a straight horizontal board that could be shifted sideways to produce lift on the leeward side of the hull. This would increase righting moment and provide a little vertical lift. The problem I see with that idea is that it is very close to the surface when the boat is flat and produces a negative side force when heeled. My idea puts the foils deeper in the water and allows it to be rotated to nearly horizontal no matter the heel angle.



The case mechanism could be a little tricky if the board isn't circular, but some carefully placed hinges, guides and flexible water barriers should do the trick.

Someone else has probably had this idea too, but thought I'd share it anyway.

The hull is one I prepared earlier.

http://www.youtube.com/watch?v=CG3gQ_I1L3E
http://www.youtube.com/watch?v=886H3CXYR5o
It's the future...maybe...

Hopefully this brings us back in line with our usual standard of posts after marklas last couple of (really) weird ones.

3 comments:

  1. Basically hinged lee boards, get rid of the through hull slot. lifting foil hinges up to horizontal to a "stop" at 90 degrees when boat speed is sufficient. If leeboards sweep aft (lifted up) it un hinges back in line with the vertical.

    ReplyDelete
  2. who dares speaketh that name here?!

    ReplyDelete