呵呵，我的记忆是正确的，看来情况不妙，搞不好场地性能可能要打点折扣了。看他们留了多少余度吧。

其实从硬件水平上来看完全可以更山一层楼的，看来在ARJ２１上他们不准备上这层楼。

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Safe Flight To Provide AoA/Stall Warning on ARJ-21

SAFE FLIGHT TO PROVIDE ANGLE OF ATTACK/STALL WARNING FOR ROCKWELL COLLINS  PRO LINE 21 EQUIPPED ARJ-21

WHITE PLAINS, NY (Immediate)—Safe Flight Instrument Corporation, the industry leader for stall warning and Angle-of-Attack instrumentation, has been awarded the contract to provide their Integrated Angle-of-Attack/Stall Warning System for the ARJ-21 Rockwell Collins Pro Line 21 avionics suite.

The ARJ21: Advanced Regional Jet being built for AVIC I Commercial Aircraft Company (ACAC) will be equipped with Rockwell Collins Pro Line 21 avionics suite. Safe Flight’s new integrated sensor/ computer airflow angle system will provide accurate and reliable Stall Warning, Stick Pusher and AoA for the Part 25 transport category aircraft.

As an integrated package, the system offers significant reduction in weight, volume, installation time and maintenance costs. Combining Safe Flight’s integrated AoA sensors and the latest technology displays, the ARJ21 with Pro Line 21 avionics is a true breakthrough in flight deck efficiency and pilot workload reduction.

The 79- to 99-seat aircraft is designed to meet the demanding conditions of 21st century flight and is forecasted to produce 500 units globally. The concept, first unveiled at the 2001 Beijing Air Show is expected to yield a completed prototype equipped with Safe Flight’s Integrated
AoA system ready to fly by mid-2006.

Safe Flight Instrument Corporation, founded in 1946 and headquartered in White Plains, NY, pioneered the development of Stall Warning, Angle-of-Attack measurement, Automatic Throttles(AutoPower®), and Wind Shear Warning systems for fixed-wing aircraft. In the helicopter market, Safe Flight produces exceedance warning and power line detection systems. Safe Flight products are installed on over two-thirds of the world's aircraft in the general aviation, corporate, commercial, and military sectors.

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