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Indian under fire

机译：印度人遭到抨击

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The Boeing Sikorsky RAH-66 Comanche has been in development for some twenty years. Threats have evolved that today cast doubts on its design philosophy. The Comanche scout/attack helicopter differs in many respects from present-day rotorcraft. Its avionics suite is optimized for operation within a network of sensors and weapon systems, in accordance with the Pentagon's 'network-centric warfare' philosophy. Its fly-by-wire control system provides unprecedented flight efficiency, agility, handling qualities, flight safety and reduction in pilot workload. The relatively light and compact design and long range give it high mobility and - hopefully - low operating cost. But the most striking feature of the helicopter is its stealth. According to its manufacturers, its radar cross-section (RCS) is 1/600th of that of the older AH-64 Apache helicopter. This should theoretically reduce tracking range by 80 percent and detection range by up to 96 percent. The exhaust air diffusion system located in the rear fuselage reduces the infrared signature considerably, and the five-bladed main rotor with swept-back tips makes the RAH-66 quieter, as does the fantail shrouded tail rotor. What operational benefits do the stealth features of the Comanche actually provide in practice? No definite answer can be given, for much information about the helicopter is still classified. But a general assessment can be made, based on unclassified information.
机译：波音西科斯基公司的RAH-66科曼奇飞机已经研发了20多年。威胁不断演变，如今，人们对其设计理念产生了怀疑。科曼奇侦察/攻击直升机在许多方面与当今的旋翼飞机有所不同。根据五角大楼的“以网络为中心的作战”理念，其航空电子套件针对传感器和武器系统网络中的操作进行了优化。它的电传操纵系统可提供空前的飞行效率，敏捷性，操纵质量，飞行安全性并减少飞行员工作量。相对轻巧，紧凑的设计和较长的飞行距离使其具有较高的机动性，并有望降低运行成本。但是直升机的最显着特征是它的隐身性。根据其制造商的说法，其雷达截面（RCS）是较旧的AH-64阿帕奇直升机的雷达截面的1/600。从理论上讲，这将使跟踪范围减少80％，检测范围减少多达96％。位于机身后部的排气扩散系统大大降低了红外信号，带有后掠式尖端的五叶式主旋翼使RAH-66变得更安静，而扇形尾翼笼罩的尾旋翼也是如此。实际上，科曼奇的隐身功能会带来哪些运营优势？无法给出确切答案，因为有关直升机的许多信息仍在分类中。但是可以基于未分类的信息进行总体评估。

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  • 来源
    《Interavia》 |2004年第675期|p.38-40|共3页
  • 作者

    HANS HEERKENS;

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  • 正文语种 eng
  • 中图分类 航空;
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