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Robert Allison

wrote:
OK, just read about supercavitating torpedoes where a gas bubble is
formed behind the nose of the torpedo in which the drag is much less
than if he torpedo was immersed in water. Sometimes the gas bubble is
formed by compressed gas.
So.........
Put millions of tiny holes in your hull through which you force
compressed air to radically reduce your drag. This sounded great till
I realized that then there would be a lot less bouyancy

Back when I was still surfing (The seventies), we tried an approach to
speed up the surfboard. Here is the formula;

Grind up about a thousand AlkaSeltzer tablets. Mix it with a clear
water soluble solution. We used water based polyeurethane. Paint
multiple coats on the bottom of the board.

Wait for a day when the conditions are such that you can walk or bob all
the way out to the breakers. Carry your board over your head all the
way out. Stand out there like a fool with your board over your head
until the perfect wave comes along. Slam the board down onto the water,
paddle like hell and catch the wave.

Result: Board moves too fast, slips out from under you and you have to
start all over. Board has awful coating of pockmarked poly on the bottom.

And we tried this multiple times.

--
Robert Allison
Rimshot, Inc.
Georgetown, TX