infra-red and mirrors

he

but

cruise

I guess it somewhat depends on their altitude, and their range from the missile's launch point. But an A10 would probably often be low and close, unfortunately. In Vietnam, our F-4 pilots would sometimes be able to watch the missile until it was about to hit them and then "jink", violently, perpendicular to the missile's flight path, and were sometimes able to get the missile to fly past them. Of course, the newer missile threats are usually completely different.

Your 3D Sound cueing sounds like an excellent and practical method! Very good. But I'm wondering if the real point of it is mostly to get the aircraft into the best position for the countermeasures to work, and, hopefully, also to help in trying to put a little more distance between the aircraft and the point where the missile might detonate if the countermeasures ARE effective; i.e. optimize survivability. After all, many missiles can make at least 30G turns, and travel at least ten times faster than the aircraft (even a modern fighter). So there's probably not much real hope of out-running or out-maneuvering them, in most situations, except in an incremental/marginal sense (i.e. hopefully just enough to get out of the way, if the countermeasures do work). Probably the best "simplified" tactic would be to pop countermeasures immediately and then move perpendicular to the missile's flight path, as far as possible, while still not re-attracting the missile. (Sorry. Just rambling. I'm sure that you already know all of that.)

Thanks again. Interesting stuff.

- Tom Gootee

On Mon, 06 Nov 2006 11:53:02 GMT, mark Gave us:

There are only about twenty different types of hot melt glue, and many of them are quite firm. Several are suitable, however.

No, For shock protection you either need to fix things firmly with clamps, screws e.t.c. (if the component can stand chock) and/or use shock mounts for things that can break such as CRT's and HDD's.

The lower the mass of the assembly, the better and the smaller the "leverage" the better i.e. the EFD cores are much better than the ETD shape because the former sticks out less, SMD is superior to leaded. The EFD cores would also be glued to the board b.t.w.

The best way to find weak spots is the vibration table.

Thanks. That is what I'm doing. Not convinced re SMT vs leaded. SMT parts are small, but the leaded devices have the advantage (at least compared to chip components) of a compliant lead. Guess I'll find out soon enuf

M Walter