In article ,
"Brian" wrote:

Missiles like the SA-12/20 and SM-2 have incredibly high speeds and
altitudes.....the SR-71 is not in a favorable position being up in the sky
with no clutter around. If it could reach M3.2 on the deck, there would be
more problems with targeting.

You have to remember that the SAM-20 tops out at about 4600 MPH, about a
third faster than the SR-71, which makes it a *lot* easier to spoof the
missile's radar, and doesn't give it enough of a speed advantage to make
a strong chance of catching a Mach-3+ aircraft from behind.

They *do* have a much better chance to hitting one nowadays, which is
part of the reason you wouldn't see many SR-71-type planes anywhere near
the big SAM sites. Or why there's that persistent rumor about an SR-71
followup out there...

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.