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Viking 400 Becomes SafeFlight AoA Test Bed

Safe Flight is testing its digital AoA indicator in a Viking 400 Twin turboprop. Safe Flight
Gemini Sparkle

Key Takeaways:

  • Safe Flight Instrument Corporation is testing its new digital Angle of Attack (AoA) indicator on a Viking 400 Twin turboprop to enhance flight safety.
  • The AoA system provides pilots with critical awareness of stall margin, trend information approaching a stall, and visual guidance for best climb speed, particularly beneficial for STOL aircraft and challenging operations.
  • Comprised of a heated, Flight into Known Icing (FIKI) capable wing lift transducer, a computer, and an in-cockpit indexer, the system accounts for various factors like flaps, gear changes, wind gusts, and weight distribution.
  • It provides ARINC outputs to integrate low airspeed awareness and AoA displays into Honeywell Apex primary flight displays.
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Safe Flight Instrument Corporation has begun testing its digital angle of attack indicator using a Viking 400 Twin turboprop as the testbed. The AoA provides pilots with increased awareness of the margin above stall, as well as trend information approaching a stall, both important elements as an aircraft slows during final approach. The system also delivers an easy-to-interpret visual indication of best climb speed aiding the pilot of utility STOL aircraft, such as the Series 400 Twin Otter, during backcountry and unimproved runway operations.

Rob Mark

Rob Mark is an award-winning journalist, business jet pilot, flight instructor, and blogger.

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