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No fighter in the world comes close to matching the F/A-22. By every measure, the Raptor represents extraordinary breakthroughs in maneuverability, stealth, sensor fusion – a wealth of parameters that define a new era in fighter capability.
The F/A-22 is capable of flying and fighting against the most advanced integrated radar networks and dense surface-to-air missile environments in the world – now and in the future. A new generation of fighters is under development in several countries around the world today. The advent of these new fighters, as well as the continuing export of current air defense and adversary advanced fighter technology to the Third World, put the United States’ ability to gain and maintain air superiority, much less air dominance, at increasing risk. The F/A-22 will retain the competitive edge through innovations and technologies no one can match.
"In 1980, the USAF initiated the Pave Pillar program. The Pave Pillar program had the goal of developing an advanced avionics architecture that could be built out of standard modules containing next generation digital integrated circuits. This approach would allow navigation, communications, sensors, weapons systems and management subsystems to interact with each other over a local area network (LAN). This would allow processed information to be presented to the crew upon request. Instead of managing complex sensors which can overload the pilot with data, the pilot could concentrate on flying the plane and achieving the mission. Pilot workload can be dramatically reduced in this fashion. Luckily, the F-22 will be the first aircraft to benefit from the Pave Pillar program and increase computer processing power in leaps and bounds. In fact, the F-22's common internal CIP's (Common Internal processors) will be as much as 100 times faster than the most modern avionics suite on the F-15 E Strike Eagle.
Amazingly, the F-22 will come equipped with two Hughes CIP's, with additional space for a third if necessary. Accommodating the CIP's will be an increased data bus bandwidth. The DBB will be able to transfer 50MB per second, in comparison to the meager 1MB max transfer rate on the F-15 Strike Eagle. Unlike previous generations of fighter aircraft radar, the F-22's APG-77 radar is not a stand alone system. The radar antenna will be one of many sensor arrays, including the threat warning system and the electronic warfare equipment. The information from these sensors will be processed by the CIP's, and relayed to the pilot via fused, flat, color LCD Multi Function displays. The F-22 will contain no less than six of the color LCD's, with only 3 backup analog displays for emergencies. The color MFD's will give the pilot a "God's eye" view of the battle situation unlike any modern fighter jet.
Mentioned in the above paragraph, the APG-77 radar is unlike any other fighter radar in the skies. It cannot be rivaled. The radar antenna is a elliptical, fixed active array which contains 1,500 transmit & receive (TR) modules. A individual TR module is essentially a mini radar in its own right. In comparison to an object, each TR module is about the size of an adult finger. A remarkable feature of the APG-77 radar is that it contains no mechanical linkages. Anotherwards, the actual antenna does not move. This does not have any effect on the performance be warned! It is able to sweep 120 degrees of airspace maximum, at 6 bar levels (change in altitude) instantaneously! In comparison to the F-15 Strike Eagle's APG-70 radar, it takes 14 seconds to scan that amount of airspace. The APG-77 is capable of performing this feat by forming multiple radar beams to rapidly search the airspace.
The Low Probability of Intercept (LPI) capability is without a doubt the most impressive feature of the APG-77 radar. With conventional RWR/ESM systems, it is extremely difficult to detect LPI pulses. This translates into a advantage for the F-22. The F-22 will be capable of performing an active radar search on equipped RWR/ESM equipped fighter aircraft without the target knowing he is being illuminated. The APG-77 does not emit high energy pulses in a narrow frequency band like conventional radars. Instead, it emits low energy pulses over a wide frequency band. This is called spread spectrum transmission. The way it works is, when multiple echoes are sent back to the radar, the radar's signal processor converts the signals together instead of individual pulses. The amount of energy reflected back to the target is about the same as a HPI radar, but because each LPI pulse has considerably less amount of energy and does not necessarily fit the normal frequency pattern, the target will have a difficult time detecting the F-22. This becomes more evident in a BVR engagement. In fact, the F-22 can launch an AMRAAM missile without even establishing a lock-on. The unfortunate target won't even receive a missile inbound warning until the missile has activated its own radar and is on final intercept. By this period, it is almost impossible to evade the missile. The pilot will have no other choice but to eject.
The F-22 and its APG-77 radar will also be able to employ better Non-Cooperative Target Recognition (NCTR). This is accomplished by forming incredibly fine beams and by generating a high resolution image of the target by using Inverse Synthetic Aperture radar (ISAR) processing. ISAR uses Doppler shifts caused by rotational changes in the targets position to create a 3D map of the target. The target provides the Doppler shift and not the aircraft illuminating the target. SAR is when the aircraft provides the Doppler shift. Thus, the pilot can compare the target with an actual picture radar image stored in the F-22's data base. This ingenuitive process is possible courtesy of the F22's CIP's.
And just when you thought it couldn't get any better, listen up. The F-22 will have the first integrated avionics suite ever flown on a combat aircraft. The Northrop/Grumman-Texas Instruments APG-77 radar, Lockheed Martin electronic warfare suite and the TRW communications/navigation/IFF subsystems are all included. Over one million lines of computer code will comprise the system. The electronics will be liquid cooled, an much lighter than the old electronics found in fighter a/c such as the F-14, F-15 & F-16. The F-22's CIP's will process 700 million operations per second, which is roughly equivalent to four Cray supercomputers. An integrated countermeasures set will be controlled by the CIP's. Rapid systems programming and upgradeability are available in the time of a crisis. The onboard jammer, communication, navigation, & IFF antennas, in addition to the RWR is contained on smart skins on the wings.
Included in the Communications/Navigation/Identification system is an Inter/Intra-Flight Data Link (IFDL) that allows all F-22s in a flight to share target and system data automatically and without radio calls. One of the original objectives for the F-22 was to increase the percentage of fighter pilots who make 'kills'.With the IFDL, each pilot is free to operate more autonomously because, for example, the leader can tell at a glance what his wing man's fuel state is, his weapons remaining, and even the enemy aircraft has targeted. Classical tactics based on visual 'tally' (visual identification) and violent formation maneuvers that reduce the wing man to 'hanging on' may have to be rethought in light of such capabilities. This link also allows additional F-22 flights to be added to the net for multi-flight coordinated attack."
The Langley projects are on track, an Air Force spokeswoman said, even despite a report last month from the General Accounting Office that said the military can now afford only 218 of the F/A-22 planes within a $36.8 billion spending cap.
The Air Force originally planned to buy 750 but since has reduced the number to 277.
The first combat-ready planes are supposed to hit the skies next year, and the military is supposed to decide by December whether to continue with full production of the plane. The GAO report called on the Pentagon to submit to Congress a detailed justification of the program before that decision.
The plane has had problems with its tail fins, canopy and computer software, the report noted. Its avionics computer processors are obsolete, and changing to new ones necessary for the plane's expanded role will take years and cost hundreds of millions of dollars, the report said.
Originally posted by American Mad Man
everytime I think the raptor posts have played themselves out, a new one pops up
Originally posted by Stealth Spy
Well and truly the F-23 was beaten by the 22 and the latter was chosen as the replacement for the F-15 after careful evaluation. That is self explanatory in settling which is better.
The Su-27 and variants although somewhat better than the F-15 stands no chance against the raptor.It may be more menuverable but the raptor's stealth provides the decisive advantage.
BTW : Its almost foolery comparing the Su-27 with the raptor. comparision with the F-15 is more justified
Originally posted by Humpy
Don't forget the Harrier.
It may be slow, but it is the most manouverable fighter currently in use.