Once you request clearance to land, you have to fly within about 2000 of the Tigers Claw from the right angle. You need to approach it from the front. Basically as long as the sprite is showing the runway pointing straight at you, you are good.
I’ve been making good use of the semi lockdown here and just finished up Wing 3 tonight myself. Having a blast replaying all of these again. The Wing 4 DVD is installed and ready to go next.