Richard wrote:
Beryl,

One last try and then I'll go away and leave you alone.

Bye!

Forget "nose heavy".

Think "pitch", aka deck angle, or preferably, angle of attack.


Within limits of course, angle of attack directly controls the amount of
lift generated by the wing. Yes, other parameters are also involved
but this angle is what the pilot has control of via the stick.

For straight and level unaccelerated flight, lift equals weight.

Wrong. Lift equals weight PLUS tail downforce. You can't "forget nose
heavy" as you suggest.

(thrust equals drag too, but that's another story)

As speed increases _so will lift_, unless something is done to keep that
from happening. THAT trick is simply pushing the nose down.

Wrong. That trick is lessening the tail surfaces' angle of attack, and
letting increased airspeed assume the task. There must be downforce at
the tail, always. You only think you're "pushing the nose down" because
you're fighting the stabilizer angle of attack, which, at 500 mph, is
far overdoing its job of holding the nose up.
Maybe you need to think Stabilator to make the light bulb come on.

(Airliners often pump fuel forward(!) but that's a bit over the top for
light aircraft)

By lowering the nose, the angle of attack is decreased, thereby
decreasing the coefficient of lift, and, if done right, maintaining
a constant altitude (the level part of straight and level)

Ok?

That's the whole of it.


So...

Quote
Of course trim needs chsnge. Richard apparently believes that
some nose-down is ALWAYS needed, and only the /amount/ of nose-down
changes as speed changes.

So for the discussion of a racer at 500 MPH, Yeah, True, Si, Da...

When landing, no.