I don't know the designer and author of that site, but it's interesting...
And here's the schematic for the later version described on this site: http://www.oceanblueone.com/art.htm
I've been curious about whether this really works for a while - this was the first one I remember seeing:
A drawing from the site above:
I came across this site today: http://www.geocities.com/walkertongdee "The Ruranit is lightweight, able to go in shallow rivers, and it handles...
And from behind... Again from the http://www.ihpva.org/ site (International Human Powered Vehicle Association)
This one looks like a lot of fun! For more see http://www.ihpva.org/ (International Human Powered Vehicle Association)
Here's another neat site featuring human powered boats: http://www.geocities.com/rcgilmore3/HPBs.htm
One more unbelievable picture from the www.humanpoweredboats.com web site - there are tons more interesting "inventions" there too!
Wow - if anyone hasn't seen the http://humanpoweredboats.com/ web site take a look. I discovered it from a post in the forums and have been...
The angelfire popups are annoying - it would be good if you could ditch them. How about showing a profile drawing? And it would be nice if...
What drawing? Did you mean to post an attachment?
What will you guys be showing at ibex? (if you can say yet)