Shaun,

Read the entire posting - all four pages.

It's very real.
Can you think of a better way to create a one-off screw for a man
powered boat?

The only thing that is problematicis the section described is at a
single station and may not be the best choice IMHO.

Matt Colie

imagineero wrote:

hillarious.

http://www.mission-base.com/pedal-power/pp_prop1.html

16"diameter x 24" pitch made out of laminated epoxied wood, apparently
suitbale for human propulsion! Lots of complex mathematics and
formulas wonderful for endless disputes or alternatively gaining
enlightenment through the head-spinning method.

A hoax or for real? I couldnt decide, but worth a read anyway ;-)

Shaun