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有关F-117A的最新细节表明,机载电子、隐身和空气动力设计已揭开了新的篇章。尽管早期研制F-117A时所提出的许多技术问题仍然保密,但据洛克希德公司的工程师透露,研制中最困难的电子设备是红外捕获和探测系统(IRADS)。 F-117A的电子设备和武器投放系统是从最基本的准军用或进行了最小限度改进的硬件逐步演化为可用于夜间攻击的一体化高精度系统。在其发展过程中,某些基本准则一直没有改变,如尽量避免可能被探测到和抵消飞机低可观测性的辐射。当以最隐身状态飞行时,F-117将不发射超高频/甚高频无线电、雷达、敌我识别或雷达高度表信号,定位天线和红外传感器的使用也要求特别谨慎以保持小雷达散射截面。如今,
The latest details on the F-117A show that new chapters have been opened for on-board electronics, stealth and aerodynamics. Although many of the technical issues raised during the early development of the F-117A remained confidential, Lockheed engineers revealed that the most difficult electronic device in development was the Infrared Capture and Detection System (IRADS). The F-117A’s electronic equipment and weapons delivery system evolves from the most basic paramilitary or minimally modified hardware to an all-in-one high-precision system that can be used for night-time attacks. Some basic guidelines have not changed during its development, such as avoiding as much radiation as possible that may be detected and counteract the low observability of the aircraft. The F-117 will not emit UHF / VHF radio, radar, IFR or radar altimeter signals while in its most invisible state. The use of locating antennas and IR sensors also requires special precautions to maintain small radar cross sections . now,