Yabbut - Helicopters are _different_. (And the Navy, of course has to
be different, too, so Navy Helicopters are _very_ different)

Different, as in similar but not quite the same, or Different as in NQR?

In Helicopters you're either piling up the rotor wash faster than it can
run away,

That's the current theory.

or the Earth is vastry increasing its repulsion of the noisy
beast in a last-ditch effort to keep it from marring the ground.

That's the only current competing theory.
Having seen more than my share of between-the-wars European bomber designs, I
KNOW UGLY. Hell, if the earth repelled ugly designs, Brequet would hold all of
the endurance flight records.

Helicopters do not marr the ground with their visual presence - they are simply
generators for localized disruptions of the normal laws of physics.

v/r
Gordon