writes:

This has never been an accepted definition of angle of attack and
your creation of it has no credibility.

Ho-hum. Acceptable to whom? Credible to whom?

Decide for yourself what you will accept or believe. Don't rely on others to
do it for you. Arguments can stand or fall on their own merit; do not rely on
hearsay and peer pressure to do your thinking for you.

You just create even more confusion in your mind and in the minds
of innocent truth-seekers here.

Compelling people to think for themselves will not confuse them, as long as
they are not unusually stupid. Most people don't like to think for
themselves, but they can do it if they have to.

So you don't believe NASA or NACA or anyone else that finds
lift at negative AOAs on some airfoils?

When I read what NASA says, it always seems to be different from what people
claim that NASA says.