a320 AP question
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Join Date: Jun 2005
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a320 AP question
Hi everybody!
I'm kinda new here, but i have a question about the a320. For as far as i know it is not possible to make an CATI auto land.
But when does the AP disconect then?. I know for example that it does at mda -50ft or 400ft agl in an non precision app but is there something similar for a CATI ils??
I found 160ft agl somewhere as a min alt for CATI AP operation, but does it then disconnect?
please help!
ps. sorry for my english... not my native language
I'm kinda new here, but i have a question about the a320. For as far as i know it is not possible to make an CATI auto land.
But when does the AP disconect then?. I know for example that it does at mda -50ft or 400ft agl in an non precision app but is there something similar for a CATI ils??
I found 160ft agl somewhere as a min alt for CATI AP operation, but does it then disconnect?
please help!
ps. sorry for my english... not my native language
If you have APPR mode selected (ie LOC and G/S) and have a valid ILS signal it will not disconnect, the aircraft will autoland as long as at least one autopilot is engaged. Don't be fooled by the CAT 1/2/3 status shown on the FMA, for instance if you had one A/P engaged and one ILS receiver inoperative the FMA would annunciate CAT 1 but the aircraft will still autoland. You are quite correct about the 160ft rule. If you have only CAT1 shown on the FMA you should not use the A/P below 160ft but it will still perform an autoland rather than disconnecting.
Join Date: Jan 2004
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Yes, you can autoland on a Cat1 runway. We have approval to do it at our two hubs, since they have no Cat2/3 approaches. The company had to do this so we could keep the aircraft current for Cat Ops