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Author Topic: Raptor Aim120 question

posted 12-07-2000 02:30 PM       Edit/Delete Post   Reply With Quote
I was just thinking , what is the point of having radar guided missles for the Raptor. As soon as you switch on your radar to find the target you blow your stealth. If the enemy such as a SU27 keeps his radar off that will negate the stealth advantage since you wont pick him up on passive sensors and you will have to close to visual range for an IR shot. Now I know the f-22 has state of the art data link capabilities , does that mean it can data link to an AWACS and have it paint the target thus allowing the raptor to link with it and have the 120 close till it goes autonomis (spelling). Wouldnt it make sense to develop a longer range passive missile?
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posted 12-07-2000 03:04 PM     Profile for Rosco   Author's Homepage     Send New Private Message   Edit/Delete Post   Reply With Quote
The pulses emitted by the Raptor's AGP-77 radar are of extremely short duration and of just enough power, it can't be detected by current RWR's as the minute signal below the threshhold of background radiation. One of the main reasons the Raptor has so much computing power is that these "stealthy" signals are so hard to process.

The F-22 also has two other ways, both zero emission, to set up AMRAAM shots. It's advanced RWR/ESM system can do the job alone without outside help and it also has an onboard PCLS {Passive Coherant Locator System} system, this operates by detecting aircraft {stealthy or not} by the tiny disturance they cause to ever present background radiation sources like radio, cell phone and T.V. signals.

Posts: 984 | From: Hazzard County | Registered: Jan 2000  |  IP: Logged
Nick Kula
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posted 12-07-2000 04:15 PM     Profile for Nick Kula     Send New Private Message   Edit/Delete Post   Reply With Quote
The F-22's AGP-77 radar is a low probability intercept system, making it hard to pick out on a RWR. Some F-15s have had their radar upgraded to support this feature, but they cant do it as well an APG-77.

Also the Raptor can fire AMRAAMs, and then lock the target after launch, with its own radar or that of another aircraft. This allows the missile to be fired at longer ranges.

Posts: 33 | From: Frankfort, IL, US | Registered: Feb 2000  |  IP: Logged

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