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From the past...stealth systems- ( stealth technology )







RF stealth is not new. the British were proposing RCS reduction techniques in 1941. The first complete modern demonstration of an LO platform was the DARPA/USAF/Lockheed Have Blue aircraft.So much has been written about Have Blue that no discussion is necessary here.  The first modern demonstration of LPI techniques was the Navy/Westinghouse Sneaker program. The first complete LPI system program was teh LPIR started in the mid-1970s by DARPA,  the U.S. Air Force and Navy, Hughes Aircraft Company as prime contractor. That program resulted in the conclusive demonstration that LPI techniques could be employed and still provide a complete airborne radar weapon system. The performance, modes, and accomplishments are summarized later when I'm free. Flight tests of the first airborne LPIR system were completed in 1979 and 1980. The system was tested against an AN/ALR-62-equipped F-111 from the 57th Test Wing at McClellan Air Force Base. the ALR-62 is a radar homing and warning ( RHAW ) receiver that has full 360 degree coverage over a wide range of frequencies. it has a potential equivalent sensivity of -65 dBm. The ALR-62 used in these test was especially programmed to detected and identify LPIR waveforms. All avaiable parameters of the LPIR system were provided to the programmers of the RHAW receiver so that an adequate algorithm could be incorporated to detect an LPI system...