Aerodynamic question for you engineers

On Jan 26, 4:12 pm, Stealth Pilot
wrote:
On Fri, 25 Jan 2008 19:15:13 -0800 (PST), D Ramapriya

wrote:

Since the CL can be altered by the wing configuration - deployment/
retraction of flaps for a given pitch, e.g., I'm not sure that the CG
and CL need to necessarily coincide for stable flight. Also, for a
body such as an aircraft, I think the CG would theoretically be
somewhere within it while the CL is a point on the fuselage, so their
coincidence may even be an impossibility.

Ramapriya

totally wrong.

Stealth Pilot


While the CG is unchanging - ignoring CG travel due to fuel burn and
pax moving around - the CP (CL) changes with the AoA. I think it keeps
moving forward as the AoA increases. Thus, so long as the CP (CL) is
close to the CG, stable flight should be possible and their
coincidence isn't a sine qua non.

Still all wrong?

Ramapriya