This might be a good idea, or a load of garbage, so bear with me.
As a child growing up in the fifties, I found out that if I bent the
outer edges of paper plane wings up, it gave more lift, to the point
that it forced them to lop, rather than allowing level flight.
So, I was interested to see that, a few years ago, aircaft designers had
finally caught up with my technology.
There are now little vertical fins sticking up at the ends of airplane
wings.
Now, say this was used on a prop.
The prop gets designed with a very high aspect ratio, so that it pushes
water back efficiently, rather than creating a water 'cylinder' that is
rotating.
The pitch is minimal for the same reason.
The water motion is created more by the airfoil (waterfoil, aquafoil?)
section of the prop, than an angled pitch.
And at the ends of the prop are little fins facing forwards.
Now, take the same thinking, and apply it to regen, and the pitch used
is then at 90 degrees to the previous idea.
The fins then point 'sideways'.
The idea is, it has minimal drag through the water, yet turns OK using
aerodynamic lift as the means, rather than pitch.
Remember, you read about it here first!
John
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http://www.fastmail.fm - Does exactly what it says on the tin
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