Airbus 320/321 Flare Mode/LAW
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Airbus 320/321 Flare Mode/LAW
During a CAT 1 approach/manual landing with the FDs ON, the FMA shows Flare- is the FD vertical guidance still valid? Since, during an Autoland the aircraft flares and the pitch is in sync with the FD orders for the flare .
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It will work fine most likely if you followed it, but obviously it’s incredibly stupid to do so. ILS protected area will not be protected and therefore can give erroneous G/S / LOC commands and FD commands, following will very quickly get the plane written off. That flare is a visual manoeuvre only, don’t over complicate it and ever ever use the FDs!
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What do you mean valid?
It will work fine most likely if you followed it, but obviously it’s incredibly stupid to do so. ILS protected area will not be protected and therefore can give erroneous G/S / LOC commands and FD commands, following will very quickly get the plane written off. That flare is a visual manoeuvre only, don’t over complicate it and ever ever use the FDs!
It will work fine most likely if you followed it, but obviously it’s incredibly stupid to do so. ILS protected area will not be protected and therefore can give erroneous G/S / LOC commands and FD commands, following will very quickly get the plane written off. That flare is a visual manoeuvre only, don’t over complicate it and ever ever use the FDs!
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I'm not talking about following it during a manual landing. its more of a tech question. i.e. say you perform a practice Autoland at a CAT I ILS (non protected) the aircraft does the same right?- follow the FDs at FLARE . So during a manual landing, a correct flare (pitch) as judge by you with reference to the outside visual cue should also match the FDs?
More importantly, during an auto land, you’d expect to see the FDs pretty perfectly followed.
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There have been serious incidents in the past caused by people following FD during the flare, so I'd say that it's dodgy guidance. While I think it's plausible that the FD pitch bars will show a bias upwards during the flare, I doubt it's following it - I've seen some very unusual auto land behaviour on marginal runways and if you watch some of the flight test videos produced by Airbus Training, it's a lot more complicated than "pitch up a bit at 50ft".
