First of all. There is no fixed wing aircraft physics in Crysis. ASF are VTOL's with heavy forward thrust. Thats it.
Second, if you want to make a comparison, go to Sarna.net and watch the BattleTech Cartoon and watch how ASF take off and land. Yeah its a cartoon, but show me a more realistic BattleTech reference of a ASF in action. AFAIK ASF can take off and land in Dropships. Just how big is a runway in a Dropship exactly?
Also one thing I'll add. It should be no easier or harder to land a ASF then it is for a Mech to leave or enter a Mechbay. But you should have to do manually.
I'm probably one of the worst ASF around. But I can land them just fine. They are fine as they are. If we get auto land, lets get a auto thingy for entering a mechbay (sometimes that gets tricky running in on a light mech). Yeah.. how ridiculous is that?