Originally posted by peck420
Given time, IRST will be good out to the same range as X band radar (what stealth is meant to defeat). As soon as that happens stealth is gone.
There is no known way to hide a planes heat signature, you can reduce it, but not eliminate it.
Uhm, you do realise that "stealth" doesn't eliminate radar return either, it reduces it? So what you suggest is the future for IRST is already the
situation for stealth features.
There has never, ever, in the history of combat been an all-winning, all-powerful, undefeatable technology that has survived the march of time. Speed
and altitude didnt do it, and they were the holy grail of the 1950s. Manoeuvrability didn't do it, and that was the holy grail of the 1970s and
1980s. Stealth won't do it, being the current holy grail. And infrared scan and track technologies won't do it either.
Having said that, IRST is at a disadvantage next to radar - there are no known natural sources of electromagnetic waves that give a constant,
undefinable interference in the radar system, while with IRST there are millions of them in the environment that have to be handled as junk and
searched through.
Its also quite possible to do a "stealth" on IR sources - you reduce them, as you suggest, and IR becomes much harder to track over greater
distances anyway. So you take your hot engine exhaust and you manipulate it by spreading out its heat signature over many frequencies - there are
plenty of existing, known ways of doing that at the moment.
Military technology developers are not looking for something to be the be-all end-all everlasting solution, they are looking for technologies that
will give them a temporary boost over their rivals - they know their technologies are on borrowed time from the moment they are developed, and they
work with that knowledge.
Its also worth noting that even with stealth technologies, the biggest thing that comes into play is tactics - even the B-2 couldn't just fly into
Soviet airspace and drop its weapons undetected, it used tactics to employ its stealth capabilities to the best effect. Knowing that the B-2s stealth
capabilities are not the ultimate protection, planners had to create specific routes for the aircraft which took advantage of the fact that the
stealth abilities reduced the enemies radar coverage, BUT DID NOT ELIMINATE IT! They had to fly through the newly created dead zones of radar
coverage where radar sites effective range was decreased.
And guess what - they had to update this planning constantly as the Soviets moved radar sites around, switched bands and upgraded equipment. Stealth
was not the silver bullet, but it did improve matters.
And the same will be true of IRST and the technology after that.