Viking Series 400 Twin Otter to Fly Safe Flight Angle of Attack

White Plains, NY – (May 19, 2014) Safe Flight Instrument Corporation,  pioneers of Stall Warning and Angle of Attack sensors for all segments of the aviation market, announced today that the Safe Flight Angle of Attack (AoA) System has been selected as standard equipment for the Viking Series 400 Twin Otter.

The fully qualified and TSO’d System is comprised of a Lift Transducer, Computer and a Speed Indexer.  The Speed Indexer provides the pilot heads-up guidance to Approach AoA.   The Computer provides ARINC outputs to drive Low Airspeed Awareness (LAA) and AoA displays on the Primary Flight Display.  Safe Flight’s Lift Transducer is a heated leading edge sensor and is Flight Into Known Icing (FIKI) capable.  Safe Flight is a leading supplier of AoA/Stall Warning systems to all segments of the aviation market.

Allowing for slower approach speeds and increased awareness of wing loading during maneuvers, the Safe Flight system provides instantaneous stall trend and AoA information with best short field approach and best climb angle aiding the pilot of utility aircraft, such as the Series 400 Twin Otter, during backcountry and unimproved runway landings.  Any factor which affects angle of attack is accounted for in the Safe Flight system, including flap and gear changes, wind gusts, ground effect and weight differences, providing an additional measure of safety in extreme operating conditions for which the Twin Otter’s performance has become renowned.

Visit Safe Flight at EBACE booth 5251 to see learn more about proven, robust Angle of Attack .

Viking is a Canadian-based first tier OEM holding Type Certificates for seven legacy de Havilland aircraft (DHC-1 through DHC-7) and the manufacturer of the Series 400 Twin Otter, the best-selling next generation turbo-prop aircraft in its class.  Viking forms part of Westerkirk Capital Inc, a Canadian private investment firm with substantial holdings in the hospitality, aviation, and real estate sectors.  For additional information, please visit

About Safe Flight:  Safe Flight Instrument Corporation, a leader in aviation safety and flight performance systems, was founded in 1946.  Headquartered in White Plains, New York, the company pioneered the development of Stall Warning and Angle of Attack, Automatic Throttle Systems, Wind Shear Warning, and many other innovations in aircraft instrumentation, flight performance, and control systems for fixed and rotary winged aircraft.  Safe Flight products are installed on over two-thirds of the world’s aircraft in the general aviation, commercial, and military sectors. To find out more, please visit