wrote in message
...
I think that Google found it for me and the spelling of the author's first
name is Derek The article is
at:http://www.danlj.org/~danlj/Soaring/Clues/SDO.html

Peter-

Wow, this is excellent. Thanks!

---------------------------------

Well, I printed it out and read it and it was a great article. But, about
three quarters of the way through it, I found that it was not the originally
requested treatise, which I could only find offered in printed form. That
one appears to be: "Sub-gravity Sensations and Gliding Accidents" 1994 by
Derek Piggott, and is available from the Soaring Society of America amoung
other places.

Peter