"Matt Barrow" wrote

Wouldn't your MPG be better at altitude?

Considering the great reduction of induced drag while in ground effect, it
would depend on the engine, I would think.

RPM's would have to be reduced until the power output of the engine is down
below 55% or thereabouts, and it would have to be leaned aggressively.

Why don't we get someone to do an extended run along the surface of the
ocean, and then do the same test at altitude, and report back.

It would be interesting, I think! g
--
Jim in NC