"Bertie the Bunyip" wrote in message
...
"Robert M. Gary" wrote in news:fe88d496-d08f-4a7f-8a0a-
:

On Jun 3, 3:13 pm, Tina wrote:
I understand how positive dihedral helps dynamic stability in
airplanes, but some big ones, like the Russian An 124 Condor, has a
pronounced negative dihedral -- the wings have a noticeable downward
slope.

Q1: Do those airplanes need active fly by wire controls to maintain
stability, or is something else at play that keeps them right side up?

Q2: Does anyone have a design rationalization for such a
configuration, as opposed to just zero dihedral? I can appreciate why
fighters have it -- they exploit lack of aerodynamic stability for
rapid maneuvers -- but transports that spend their whole life being
straight and level are another issue.

Negative dihedral provides a place to hang bombs ala the USNavy's A-7
Corsair II.



Uh. OK



Bertie

Relevance?
More compulsive behavior.
You reply even when you have no relevant answer.