that downwh
ORIGINAL: mithrandir
OK... There was a post earlier suggesting that the downwash was a dominating factor.....well... it isn't!! lol.. as a pitch neutral plane will fly inverted hands off.... so the wing-tail angles are zero-zero
Mithrandir, interesting stuff... i've heard others talk about how tail position effects tuck in KE based on practical experience so i'm sure your CFD tells the truth.
I'm interested in the quote above regarding downwash (the suggestion it had a part to play was mine)... I'm not sure why you say that the fact planes fly inverted without down elevator proves downwash is not a factor??? if anything i'd suggest the opposite was true. i can take a plane that has some small positive stability (according to calculation of static margin and overall flight charecteristics) and that plane may fly inverted without any down elevator (I've had this occur on my own models).. The same plane would climb when inverted ifstatic marginwas moved close to zero.
The only explanation for this that i can think ofis the effect of downwash on the stab.
Steve