Why still no dive acceleration difference?

[mayshine]

Originally Posted by JtD

In terms of physics:

dive acceleration = earth gravitational constant + excess thrust / mass

It is easy to see that as long as excess thrust is larger than zero, mass will reduce the planes acceleration. Excess thrust will be less than zero when the plane is above level speed for that power setting. Also, in typical flying conditions, earth gravitational constant >> excess thrust / mass, so excess thrust / mass doesn't really matter.

If you don't care about physics, at least search for the TAIC test FC99 mentioned, read it, and adjust your expectations. That time would be a lot better spend than making another dozen posts on the issue here.

Good , finnally I found some one who pose the formular

but I want to correct u in some point

G actually the advantage to heavy planes

see my formular posed previously.

F= ma, a=(m*g - back force)/m

when the backward force become larger and larger

the mass * G will become more and more helpful to speed up the plane.

that means the plane will bigger mass and less back force will be faster

and the back force is complicate,

it is regarded to the strenght of the plane, air wave darg force, pro pitch
propeller tip speed, the shape of the wing, wing load and so on

I dare not to simplify all this in to a univeral A = 8.7m/s as I calculated
previously

Do you still think I do not know physics?