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| Aspen Avionics AOA system. Photo: Aspen Avionics |
[Avionics Today 04-13-2015] Aspen Avionics is now offering an integrated Angle of Attack (AOA) indicator through a software upgrade for their Evolution displays, which the company believes will address one of the FAA’s key issues for general aviation safety.
Aspen’s AOA calculates angle of attack from the flight envelope data received from the air data computer and Attitude Heading Reference System (AHRS), and integrates the technology directly into both its Primary Flight Display (PFD) and Multi-Function Displays (MFD).
“The FAA is aggressively promoting the use of AOA-based systems to reduce general aviation accidents caused by loss of control,” said Perri Coyne, director of marketing operations at Aspen. “We are offering a software-based derived angle of attack function that provides real-time stall margin awareness without hardware, cabling or aircraft modifications. The aircraft modification consists of a simple software upgrade to the Aspen primary and multi-function flight displays and requires a short calibration flight as part of the return to service.”