Eurofighter/Typhoon Demonstrates Automatic Low-Speed Recovery


Released on Thursday, November 4, 2004
Germany
F-35A Lightning II
Typhoon
ALSR - Automatic Low-Speed Recovery
FCS - Flight Control System
The first production single-seater Typhoon multi-role aircraft, designated GS002, intended for the German Air Force, Luftwaffe, demonstrated Automatic Low-Speed Recovery (ALSR) capability at EADS Military Aircraft Flight Test Center in Manching, Germany, in late October 2004.

The Typhoon aircraft features a quadruple fly-by-wire flight control system, which provides the aircraft its outstanding maneuverability and considerably reduces workload coupled with its ease of handling characteristics. ALSR is the most important trait of its carefree handling functionalities.

ALSR as an integral element of the flight control system prevents Typhoon departing from controlled flight at very low speeds and high angles of attack. When a low-speed situation occurs ALSR raises an audible and visual low-speed warning. Thus the pilot will have enough time to recover the aircraft manually. It this doesn't happen, the ALSR can take control of the aircraft engaging the engines with the maximum dry power and returning the aircraft to a safe flight condition. In that event, depending on the altitude the ALSR can either execute a push, pull or knife-over maneuver.

During the flight test, the test pilot Karl-Heinz Mai put the aircraft at low speed with a 70-degree nose-up attitude and power idle. Then the ALSR reacted in a impressive way recovering the aircraft to a safe flight condition as expected. The ALSR in conjunction with the Flight Control System (FCS) worked flawlessly.

It has been reported that the F-35 Joint Strike Fighter will integrate a similar capability. The aircraft might fly back by its own means to the operating airfield if the F-35 pilot suffers incapacitating damage during a combat mission.

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