Here's a question for you guys with more experience and more smarts than me:
I know what HAT (height above touchdown) and I know what HAA (height above airport) are. But when would you see one in lieu of the other? The only thing I can come up with is an HAA is published for a circling approach where there is no TDZE for the approach. Is this correct? I can't find it published anywhere (FAR, AIM, Jepps), that is just some deductive reasoning on my part. Thanks for the help.