Sounds to me like you've got that wing section (i.e. the flap) beyond the
peak of the L/D curve, while the bulk of the wing is in front of the L/D
curve. If that is the case, it is certainly something that will often happen
in real life and your solver needs to cope with it. Without looking at
On Mon, 18 Mar 2002 14:41:55 -0800
Andy Ross [EMAIL PROTECTED] wrote:
What you're seeing is the fact that, when you add flaps, you increase
the nose-down pitching moment of the wing. This happens,
qualitatively, because most of the lift you add gets
added at the back of the wing where the
I wrote:
Right now, YASim applies all of the extra lift due to flap
deflection (including control surfaces -- they're flaps too) at a
point one third of the way up from the trailing edge.
Oops, I lied. There was a bug. One third from the edge is what I
meant. One third from the *center*
On Mon, 2002-03-18 at 14:41, Andy Ross wrote:
[[Whoops, my To: line wasn't, so the first time this got sent is went
into the moderator queue. Moderators, please ignore. My
apologies]]
[This came in private mail, but it involves questions that I think the
rest of the list might
Andy,
I had the autopilot on the entire time during the test and it was
maintaining 1000' ASL the whole time. So, yes, the autopilot was
changing the trim to hold a constant altitude.
So, if I am at my max speed with 0 flaps in a straight and level
configuration, then there is *no way* that
Tony Peden wrote:
Andy Ross wrote:
You're not changing the trim settings when you do this, right?
He had the autopilot on, maintaining 1000 ft. So, yes, the trim was
changing.
Ooh, ack. You're right, I should have read more carefully. Something
is definitely wrong, adding flaps
