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Old 04-03-2021, 06:22 AM   #16 (permalink)
kach22i
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Quote:
Originally Posted by freebeard View Post
Two conjoined flying boats?

What do you make of the fences under the leading edge?
I think Aerohead nailed it.

Perhaps the reason we have not seen these strake/fences on catamarans, trimarans and tunnel hull hydroplanes (be they sail or powered) is the speed they are intended to operate at and also the pressurization and compression of air under the craft squeezes the air to the surfaces (I'm making this last part up but will attempt to support later).

I have seen a side to side negative camber between the floats/sponsons/pontoons before where the bottom of the bridging element arcs up to prevent being splashed by larger waves presumably. See Concave Tie-Up below in diagram.


https://www.pinterest.com/pin/275845545915827585/


The above diagram is to illustrate a side to side concaveness, and recall the original craft (Advanced Aerodynamic Vessels, SAS) has a longitudinal concaveness.

Advanced Aerodynamic Vessels, SAS
https://www.aavessels.com/
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Last edited by kach22i; 04-03-2021 at 06:30 AM..
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