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Old 23rd Jun 2009, 16:55
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Hyperveloce
 
Join Date: Jun 2009
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Estimating the aerodynamical efficiency of the control surfaces

Hi there
There are multiple projects of airborne laser anemometers, some are used by Airbus on a plane to study the turbulences in the wake of its airliners, so, provided it can be certified for commercial usage and proven reliable, maybe a different technology like laser velocimetry can be goog for the overall navigation chain of airliners.
Speaking about the anemometry, I have a question for those who knows in flight mechanics/control and navigation: if the autopilot has the slightest doubt about the reliability of the airspeed measurements or AoA, would it be possible for the autopilot to add to the normal law/orders, very small predefined orders on the control surfaces (the goal is not to induce an upset) to see how they translate into load factors (linear/rotational accelerations via the IRUs) and estimate in another way via a numerical model of the flight mechanics of the aircraft, these suspicious air parameters (airspeed, AoA,...) ?
Jeff
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