Where the hell is the poster of the original question?
Has he left town after all this scientific
and not so scientific commotion?

I expect that "Mark" ) is sitting back enjoying the show.
BTW, of those who attempted to answer his question, yours was the best
IMHO -- it was concise, to the point, and included reasonably
sufficient conditions (identical props, test stand).

David O -- http://www.AriplaneZone.com
++++++++++++++++++++++++++++++++++

WoW....
Coming from you, this is quite a compliment.
Thank you.

FWIW....
I considered "insufficient data" immediately,
but that seemed a bit too cut and dried at
the time for my mental picture of "Mark"...
considering the way he framed his question..

It is my fondest hope that the various
replies have enriched him much more
than he might have expected. g


Barnyard BOb -- Merry Christmas to all