Also I'm confused by the animation. Is your prop moving fixed size blades away from the hub to increase diameter? What's the efficiency cost of...
So you need an outboard manufacturer to be fishing for this idea and buy your idea then. Mercury demoed a hydraulic pitch control drive back in...
How much money do you want to spend on something that washes off frequently. I'd rather put money into a better prop or engine tweaks that last years.
The inflatable keel is an air chamber between a wood insert floor and the fabric bottom. It makes it more rigid and gives it a small v shape so it...
I went through 10 cans of DEET already this summer. It makes me cough when I spray it and the can says wash treated clothes before wearing again...
http://www.evolva.com/products/nootkatone/ is working on selling it - maybe 2 more years to go.
BBC Costa Concordia salvage Time lapse on youtube _91A9FzxQ78