"Token" wrote...

I believe the term is "thread creep"? Usenet threads have a tendency
to wander afield from the original post, but I do not see my posting
as being very far afield.

Your earlier post "Those heat seakers don't chase high bypass engines
very well." would seem to indicate you wished to depart from the
original thread by introducing the shooting of "heat seakers" at HBPR
engines (thus broadening the field from Igla since Igla has never
fired on a commercial HBPR engine).

Possibly your only error here is inferring that Tarver wished to do anything but
confuse the issue in a discussion which has gone way over his head. If you
follow the various threads from the original posting on the subject, you'll
probably figure that out very quickly.

FWIW, I would guess the single-hit Pk is relatively low, though the Ph is very
high (~.8). Pk would depend a lot on the target -- a 747 would be much more
likely to survive than an MD-80, due to number and proximity of engines and
related plumbing.