f-18

I'm trying to find a list of very specific McDonnell Douglas model numbers. I know there are already threads on this, but those are far from complete. For example, they don't list that the F-4EJ is specifically the Model 98MB (I think), the Phantom F.G. Mk. 1 is the Model 98FB, or the Phantom...

The F-18 flaps and flaperons... I know the flaps and elevons both droop equally at least at high settings and they seem to have a slot. What I am curious about is what you call the part of the flap in front of the slot (it pivots/droops somewhat with the flap), does anybody know what you call...