On May 6, 9:13 am, WingFlaps wrote:

If those engineers didn't take this

stuff into account the airplane simply wouldn't get certified and you
would never get a chance to fly it.

This has nothing to do with certification.

Oh, it doesn't? Then, tell me, what items DO have to do with
certification, if elevator effectiveness at any trim tab position
isn't one of them? Find and quote the references to support your
claim.

Dan