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http://www.awgnet.com/shownews/03paris/hard3_02.htm

Rafael is unveiling the latest generation of its Python air-to-air missile, considered to be the most advanced of its kind. Python 5 is currently undergoing flight tests and is expected to become operational with the Israeli Air Force in 18 months.

The new missile follows-on from the 12-year-old Python 4 and offers dramatic performance improvements. The imaging sensor seeker utilizes a new 320 x 240 dual-band detector matrix, and is positioned in a redesigned nosecone that enables over 100° off-boresight coverage. Signal processing is provided in real-time by an array of high-speed signal processors that effectively detect and track 'pixel-size' targets, with low false alarm rates. The seeker can detect beyond visual range low-signature targets including aircraft, helicopters and UAVs, in adverse background and countermeasures environments. The use of dual band detectors and dual processing channels provide excellent infrared-counter-countermeasures (IRCCM) capability, which makes Python 5 practically immune to flares.

Another addition is the integration of a fiber-optic gyro-based inertial navigation system (INS), which provides high pointing accuracy and midcourse control, especially in lock-on-after-launch (LOAL) engagements. Python 5 retains Python 4's dual-pulse rocket, warhead and aerodynamic configuration. Rafael considered the benefits of thrust vectoring, but decided that the current configuration is superior, as it has more energy and maneuverability in the end-game phase, where thrust vectoring systems loose energy due to rocket burnout.

On engagements of targets beyond visual range (BVR), Python 5 can position itself accurately to detect targets at extended ranges. By compensating for the aircraft wing twist, the missile's seeker can be positioned in the direction of the target, while the wide field of view enables effective coverage to ensure that even maneuvering targets are detected. On BVR launches the missile uses trajectory shaping to optimize range and performance. In the initial phase of the trajectory, the missile climbs to a high altitude until a point where the target can be acquired. Descending from that peak, it can maintain high speed and maneuverability throughout the chase and end-game, even after rocket burnout.

Compared to all current air/air missiles, Python 5 offers a full-sphere launch and engagement envelope with extended maximum range, Its capabilities are easily combined with other radar-guided BVR missiles, which are employed in situations where clouds and other limitations deny the use of IR missiles. The Python 5 can practically engage at the front, sides and rear of the aircraft, as it is cued by targeting information available to the pilot from local or remote sources.

By Tamir Eshel


"Retreat, hell! We just got here!"-Captain Lloyd Williams, 2nd Marine Division, Belleau Wood, France, WWI