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Thread: Can the FPV be used to determine AOA
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Old 17th August 2014 | 20:17
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A33Zab
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From: somewhere
Hybrid FPA
MOD 202164 (A330)
MOD 153528 (A320)

The FPV is based on the FPA.
When ADR data is not available the baro-inertial parameter (Vzbi) is missing to calculate the 'classic' FPA. (FPA = arc tan(Vzbi/GS)

After the mod, if the baro-inertial is not available, this parameter is replaced by GPIRS (a mix of Inertial and GPS pos data)
This FPA is called the hybrid FPA.

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Last edited by A33Zab; 18th August 2014 at 04:07. Reason: Added A320 mod
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