Hydrofoil creates thrust

[JonathanCole]

http://www.newscientist.com/article.ns?id=dn7414

[Raggi_Thor]

Kind of cool, but it looks exausting and you can't stop (or you drop!)

[JonathanCole]

Originally Posted by Raggi_Thor

Kind of cool, but it looks exausting and you can't stop (or you drop!)

Hi Raggi_Thor,

All human powered hydrofoils are exhausting. It is not the particular human powered device that caught my interest. It is the fact that a foil with a 7 degree up and down movement propels the rider to 16 knots. No rotary motion. It's a high tech fin flapping. I am interested in wider applications.

Jonathan

[Raggi_Thor]

I see. I remember seeing larger boats with simmilar devices to create forward thrust from wave movement.

[tom kane]

Moving things (foils) a small distance but at the correct frequency can have interesting results.Plug in your orbital sander with the ON switch locked ON,place on a flat surface, switch ON and see it scoot across the floor.