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Old May 20th 06, 06:10 PM posted to rec.aviation.homebuilt
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Default Bubble injection behind the step on seaplanes


JP wrote:
Yep! The concept works. The basic idea is at least 100 years old.


Indeed.

The lapstrake construction of the Viking longboats carried bubbles
down from the bow under the hull.

People sailing modern replicas report a sort of 'surge' and an
associated loss of rudder authority that corresponds to reaching
a certain critical speed.

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FF