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#141
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Altimeter Question
Euan Kilgour wrote in
: On Apr 18, 4:56 am, Bertie the Bunyip wrote: Andy Hawkins wrote : Hi, In article , Bertie the wrote: They don't use any of the Q codes in the US. QNH is one of the few still in use around the rest of the world, the rest are pretty much archaich. You stil occasionally hear QFE in the UK, but no airlines I know of are using it anymore since modern airplanes aren't designed around their use (QFE settings on the altimeter **** up the computers since the computer is anticipating a QHN setting to run a bunch of other devices in the airplane, of which pressurisation is the most relevant) Very occasionally you hear QSY which is "see you, I'm going to talk to someone else" and QDM almost never nowadays, but it used to be relatively common and it's Mag direction to a station. And even less used QDR which is the Mag radial from a station. I think the Maritime world might use a lot more of them still, though. The UK PPL syllabus still teaches QNH, QFE (the military use it here, and some civil airfields will give it in the initial response). QDM, QDR and QTE (true bearing) are also taught. QDM is on the R/T 'practical' test generally. But, like sticking to imperial measurements, I think you stand alone. Britain is still clinging to a number of archaic aviation terms (you still gotta know which direction to go whatever you choose to call it!) One of my favorites is the "Pan" call. Nobody uses that anymore except you guys. I had an entertaining few minutes in Germany listening to some Nigel making one of these a few years back. It went something like this. The Nigel Skipper is played Terry Thomas and the German controller by Hardy Kruger in this re-creation. Boffo Air 2234 "Rhine, Boffo 2234, PAN PAN PAN" ATC "Station calling?" BA 2234 "Rhine this is Boffo 2234, PAN PAN PAN" ATC. "Boffo 2234, pass your message" BA 2234 "Rhine, this is Boffo 2234, PAN PAN PAN" ATC, "Boffo 2234, say again?" BA2234 "Rhine, this is a PAN call from Boffo 2234" (at this point you can almost hear the Boffo skiper thinking "bloody foreigners" ATC, "Boffo 2234, are you declaring an emergency?" BA2234 "Negative Rhine, Boffo 2234 is making a PAN call" ATC, -silence- BA 2234, Rhine, we have a pasenger having a heart attack, we're mkaing a PAN call" ATC, "Boffo 2234, do you wish to declare an emergency?" BA 2234 "Nega- Oh, yes, yes, we're declaring an emergency, we'd like to divert to Frankfurt immediatly. " ATC, roger 2234, fly heading 330 and descend now to FL 150" No ****, this really happened. I think it actually took longer than this. The Brit captain just wouldn't let go.... I'm not sure but I think it was Thomas Cook. Bertie Nice. It reminds me of this funny commercial: http://www.youtube.com/watch?v=gmOTpIVxji8 Co-incidentaqlly, they showed that very commercial at my CRM refresher last week! Bertie |
#142
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Altimeter Question
Tauno Voipio schrieb:
ICAO Annex 10, Volume 2, part 5.2, Distress Communications. The rules come from ITU Radio Regulations. It's part 5.3. And the phrase "mayday relay" is *not* defined there. It's always dangerous to cite a source without having actually read it. There are several differences between maritime and aviation radio procedures. One is that the expression "mayday ralay" is not used in aviation. Another example is that in aviation you say "stop transmitting" rather than the maritime "silence". Let alone the maritime procedure to get a clearance for climbing to FL200... |
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