Originally Posted by
MechEngr
swh,
At 10 feet apart that would be (a+19990)^2+b^2=c^2
You started them 100 feet apart.
Apologies for being practical.
a+19990 would have them with overlapping fuselages, which would be normally classified as a collision.
Aircraft normally have these things sticking out from the sides, forget the technical term for them.