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by nixy 1866 days ago
I think the OP is referring to ground effect above the water surface, as employed by for example eraknoplans (https://en.wikipedia.org/wiki/Lun-class_ekranoplan)
1 comments

I would speculate no, as it seems a trade off between inherently stable and inefficient (standard v shaped hull) and inherently unstable, but more efficient (inverted v).

Ekranoplans have wings and aerodynamic control surfaces.

I also wonder (this may be the primary reason) if the speeds a hydroplane achieves are sufficient to generate much lift in air from something the size of a boat hull.