Mark,

I was originally going to put the turbine in a complete tunnel like the one that in the thread posted above, but I was worried about it being able to get enough air, so that's why I cut the top back so that the front of the turbine is exposed. It gets enough air to run OK statically, so I think it will be OK at low speeds and its not really built for super high speeds anyway so I intend to keep it fairly slow. I'm hoping that there won't be much, if any spray that goes over the top and gets sucked in. Its a draggy airframe anyway (thick wing, boat hull, etc.) so I doubt its going to be very fast.

Its all an experiment! I'll keep you guys posted on how it goes... [8D]

Bob