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Steve Taranovich

Aircraft: Angle of Attack (A0A) Sensor design

Steve Taranovich
emma8374
emma8374
5/17/2019 5:04:43 PM
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Re: Maybe what would be best is redundant dissimilar AOA sensing methods for each sensor
nice work

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steve.taranovich
steve.taranovich
5/15/2019 10:50:07 PM
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Re: Maybe what would be best is redundant dissimilar AOA sensing methods for each sensor
@BillWM---that's an idea---we need to have more possibilities discussed like that and then test and choose from there

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BillWM
BillWM
5/15/2019 8:50:14 PM
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Maybe what would be best is redundant dissimilar AOA sensing methods for each sensor
Maybe what would be best is redundant dissimilar AOA sensing methods for each sensor  -- Perhaps one the Vane and Shaft like there is now, and the other perhaps vector based pressure ports on a fixed metal protrusion or some other non-blade and shaft method.

 

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steve.taranovich
steve.taranovich
5/15/2019 8:42:37 PM
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Re: AOA sensors have to have part of the sensor out in the elements
@BillWM---You're right. DO-160 tests salt, fungus, fluids, sand, dust....not bird strikes or mechanical damage in docking and undocking the aircraft. I just think we need to be more innovative in our design approach to ruggedize the sensor by minimalizing mechanical aspects of the product where we can. From what I gather, it's not an electronic failure, but more of a physical/mechanical/movement error from bird 'gunk' or physical damage failure to the AOA from docking and gate departures.

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BillWM
BillWM
5/15/2019 7:00:22 PM
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AOA sensors have to have part of the sensor out in the elements
AOA Sensors have to have part of the sensor out in the elements -- This means they are subject to bird strikes(the Ethiopian case), Paint, Masking Tape, DeIcer, Ice, Hail, runway debris, and other effects -- I am pretty sure that RTCA DO-160 does not address bird strikes, debris, de-icer, and hail -- This leaves these into the TSO for the sensor which is RTCA/FAA/CAA/ICAO  -- The real key is having the complete and correct requirements for the AOA sensor design team.

 

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