retractable rudder One solution to maintaining trailerability while extending the stern and keeping the rudder in it's current position involves...
another thought if a foiled vessel is riding a couple feet above the mean surface of the water, how does the air flowing around the vessel deform...
supersonic hydrofoil boat Fair enough. Excellent thread by the way. Much of this discussion has hinged on the definition of a boat. A...
mixed medium This discussion has made me laugh and smile more than once. Seriously though, a boat goes through air and water. While the...
The speed of sound in air at sea level is 340.29 m/s or 761 mph. I thought this would be a more appropriate measure for a supersonic boat as most...
sail fast How low can you safely fly a plane? The speed of sound at sea level is 340.29 m/s. That is about eight times faster than the...
Check out www.kiteship.com The video streams are pretty cool
twin stays Just a thought, but perhaps he meant to have twin forestays, one in front of the other. The after forestay would accomodate the 130%...
Design Contest This is great - can't wait. The contest should have a few basic categories (each with their own winner) and an overall winner...
Soren, I did not think it appropriate to use half the mizzen because on a cat schooner the sails are almost in the same place as for on...
The design spiral can sometimes spiral out of control. In designing a 46' LOA cruiser for reasonably quick single or shorthanded ocean passages,...
removing pump for servicing You may want to consider a water ballast system to keep the platform stable when removing a pump for servicing -...
Have you checked out Project Amazon? http://www.sponbergyachtdesign.com/ProjectAmazon.htm In addition there is a good section on freestanding...
I've wondered the same thing. Given that the shaft would have two turning speeds for any acceptable engine RPM range you would want to have a...
