Soviet jet-powered hydrofoil, page 1
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reply posted on 22-7-2005 @ 02:19 PM by LCKob
Facinating technology ... with definite commercial applications ... but there are limitations, especially when considered for military appications.l

After scanning the aerodynamic theory behind this "ground effect" phenomena ( per
www.se-technology.com... )

It seems that for maximum effeciency these hybrid craft have to be really big ... and even then, they will have problems with deep sea swells beyond a certain height which is based in part on the rule below

" ...From this theory it follows that induced drag reduces to approximately 50% at a ground clearance of 10% of the wingspan (or equivalent lift surface)."

So, the single biggest limitation would be wave height clearance in deep sea or rough weather .

It seems that for lakes and coastal applications such a craft could find an operational niche ... or perhaps a very controlled scenario for millitary exploitation.

LCKob
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