An older
elector mechanical device did this for a different
problem.
Given variables: speed over surface,
altitude,
gravity,
an objects drag
Problem: At what time do you release an object to hit a
predetermined spot.
Hint: it was top secret in the early 1940s.
And I would like to see an accurate simulation of one. I've seen
the real thing, but being fastened to a metal post set into a concrete
floor, it wasn't in operable condition. Not to mention that none of the
dials were labeled, undoubtedly because the functions of each were also
top secret at the time it was manufactured.
I think I've seen a photo of this, with Vannevar Bush standing over it,
looking at it.
-dq