Can a conventional catamaran achieve speed in excess of 60 mph?

Question:
Would lighter than air gas compressed and ensconced in bows tend to produce positive bouyancy thereby resisting submarining?

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Would such a positive bouyancy advantage increase speed of catamaran as opposed to stock catamaran provided all else being equal?

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Why do sail manufacturers use a mast? And would a superior mastless foil generate faster hull speeds?

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And, should not a catamaran have flexible struts connecting the hull because a certain amount of flex would enable the hulls to remain in the water longer?

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Could a tornado be used as platform to use experimental foil configuration superior to anything that exists today?

Answers:

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Yes, a conventional catamaran can achieve hull speed in excess of 60 mph provided it is tweaked. Overall, there would be a hull speed increase, nominal, by increasing the positive buoyancy of the bows and removing the rigidity of the struts would also increase hull speed.

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But the real factor would be the foil. A mast-less foil is innovative and superior to a mast. What is a mast: A dead stick stuck up in the air to hang some animal hide or canvas upon, PRIMITIVE by any standard.

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So the foil would be the key to generate speed in excess of 60mph, and instead of a Tornado perhaps a C-Class would be a better platform?

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no unless you go to and ice lake

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When you compress a gas, it gets heavier...

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And buoyancy is about displacement, which involves volume, not mass. If you put it in a pressure vessel, which tend to have to be stronger which equals heavier, you're adding to the weight of the vessel...
For the the kind of volumes you're talking about, the difference is insignificant, whether you use air, helium or styrofoam. You'll get little or no "lift" from the gas itself, and no difference in displacement.

Propeller shaft?

The point of air-filled buoyancy pockets or bags is to displace water, without adding weight.. not to create lift.

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That's why balloons have to be so big, to get enough lift to be worthwhile. displacement..

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