Thanks Alexy,

I wasn't sure what the convention was in aero work for defining
"aspect", it doesn't really matter as long as everybody agrees on the
same definition! So I just took David's definition and went from
there.

Then in his next expresion said "span^2/aero", so I figured "AERO"
meant something that he hadn't defined, but I should have implicitly
known, and figured at this point it wasn't crucial to the discussion.

But this is the reason why I was trying to discuss relationships
before we got into botched algebra. I'm seem to be continually making
those kinds of errors so I end up doing everything 2 ways just to make
sure.


alexy wrote in message . ..
Dave Hyde wrote:

I think you have a fundamental misunderstanding of the basics here.
An infinte (span) wing has an aspect ratio of INFINITY, not zero.
LARGER aspect ratio is less drag.
Dave, to be fair to Jay, you did type

:The _definition_ of aspect ratio is chord/span

Of course, you immediately contradicted that by typing

r span^2/aero (they're equivalent)

which should have clued anyone in that you had inverted the first
expression.