Date: 7/3/2008, 8:10 pm
: Hi Bill,
: No matter what the angle of attack, I think that as long as there is a flow
: differential between the two sides of a hull you are going to get lift,
: less a low speed, but water is quite dense compared to say air, so a
: smallish area at even low speed might fall under the influence of lift.
: consider that a hang glider gets lift at a wind speed of only 20 mph in
: air. The fin on a windsurfer, perhaps only 30 sq inches, generates lift at
: 10 - 15 mph or even less.
: I watch with interest.
: Et
Yes, there will be lift, if you can call a horizontal force lift, because the hull is a very skinny asymmetrical airfoil. Asymmetrical foils have a mean camber so can indeed generate a lifting force at zero angle of attack. If the force is significant at cruising speed, there will be a large splashing sound as the lateral forces pull my hulls apart, dropping me into the drink, film at eleven....
Messages In This Thread
- Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Carl Delo -- 7/1/2008, 11:36 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/3/2008, 1:30 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
Carl Delo -- 7/3/2008, 8:47 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/3/2008, 9:38 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Carl Delo -- 7/3/2008, 8:34 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/3/2008, 9:43 pm
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/2/2008, 1:31 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Etienne Muller -- 7/2/2008, 6:35 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/3/2008, 1:58 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Etienne Muller -- 7/3/2008, 9:19 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/3/2008, 8:10 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/10/2008, 3:10 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Carl Delo -- 7/10/2008, 9:04 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/11/2008, 10:04 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
Carl Delo -- 7/11/2008, 10:53 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/11/2008, 11:28 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/21/2008, 1:38 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK* *Pic*
Carl Delo -- 7/22/2008, 10:39 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/23/2008, 9:53 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/23/2008, 10:20 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/24/2008, 3:04 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/24/2008, 11:41 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/25/2008, 12:21 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/26/2008, 2:07 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Carl Delo -- 7/27/2008, 11:45 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/29/2008, 4:26 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
Carl Delo -- 7/29/2008, 4:48 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/31/2008, 9:00 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/31/2008, 9:36 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/31/2008, 6:55 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 8/4/2008, 12:53 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 8/6/2008, 3:52 pm
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/31/2008, 12:39 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
Carl Delo -- 8/1/2008, 12:40 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Pablo -- 9/26/2008, 3:14 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
Pablo -- 9/26/2008, 3:18 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 9/27/2008, 11:17 am
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 8/1/2008, 9:45 am - Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/30/2008, 1:45 am - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/28/2008, 2:37 am - Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/24/2008, 10:54 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/23/2008, 3:24 pm - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/23/2008, 8:49 am- Re: Skin-on-Frame: Sea Sled catamaran prototype *NM*
Bill Hamm -- 7/23/2008, 8:45 am - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK* *Pic*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/10/2008, 4:47 pm - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/5/2008, 1:52 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/5/2008, 6:54 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/5/2008, 7:43 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
Carl Delo -- 7/5/2008, 11:38 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/7/2008, 6:55 pm- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/8/2008, 5:57 am
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/6/2008, 2:10 am - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/5/2008, 7:39 pm - Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Etienne Muller -- 7/4/2008, 4:53 pm - Re: Skin-on-Frame: Sea Sled catamaran prototype *LINK*
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Carl Delo -- 7/2/2008, 10:05 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/2/2008, 12:22 pm
- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/2/2008, 9:34 am- Re: Skin-on-Frame: Sea Sled catamaran prototype
Bill Hamm -- 7/2/2008, 9:20 am - Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype
- Re: Skin-on-Frame: Sea Sled catamaran prototype *Pic*
- Re: Skin-on-Frame: Sea Sled catamaran prototype