with regard to "turn right **degrees"
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I am upperairspace enroute in Europe. Often used 5 degrees, now we see the mode S heading, and I will give exact headings eg. 186, if I see it is the heading I want to use.
aircraft fly 186 just as easily as they do 185.
aircraft fly 186 just as easily as they do 185.
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Often we have aircraft on parallel headings, same levels ofcourse, and you see that due speed difference the track are actually slight converging. I have no problem in turning one of them 2 degrees so the actual tracks go parallel.
Pilots often come back with a "confirm 2 degrees", but why not, the computer can fly any heading you dial in.
Pilots often come back with a "confirm 2 degrees", but why not, the computer can fly any heading you dial in.
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1 KT speed adjustment? No reason why it wouldnt come in useful from time to time. Often M.005 adjustment, but that is worth around 3 to 4 knots.
It may sound rediculous to you pilots, but I am sure you would rather gain fewer miles from vectors than more miles right? So that is the reason.
It may sound rediculous to you pilots, but I am sure you would rather gain fewer miles from vectors than more miles right? So that is the reason.
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Catwalk, there is no logical issue, the 1° adjustment is useless as much as the speed example, no benefit.
Trying to turn it to an helpful participation, I do wonder how come 2 planes made parallel are going to meet because of the speed...
Trying to turn it to an helpful participation, I do wonder how come 2 planes made parallel are going to meet because of the speed...
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Trying to turn it to an helpful participation, I do wonder how come 2 planes made parallel are going to meet because of the speed...
Last edited by poldek77; 27th Oct 2011 at 12:10.
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Poldek, if one of them is that faster determining an important DA difference, I wouldn't care about because the separation issue will be solved very very shortly without urgency to move people by 1/2 degrees (overtake).
If the speed difference is not that big, the DA is not that rilevant unless they are flying parallel lifelong.
If the speed difference is not that big, the DA is not that rilevant unless they are flying parallel lifelong.
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If I have 2 AC on parallel with 6nm in between, for the next half hour and my separation tool tells that in 10 min I will have only 4nm, then I prefer the 2° turn rather than the paperwork!
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Poldek, if one of them is that faster determining an important DA difference, I wouldn't care about because the separation issue will be solved very very shortly without urgency to move people by 1/2 degrees (overtake).
If the speed difference is not that big, the DA is not that rilevant unless they are flying parallel lifelong.
If the speed difference is not that big, the DA is not that rilevant unless they are flying parallel lifelong.
) and I hope they are correct.Two airplanes: SlowJet - Ma=0.72, TAS=400 and FastJet - Ma=0.82, TAS=460, X-Wind 100kts (not everyday's but possible), no HeadWind or TailWind. So the difference in Drift Angles is just 2 degrees.
The case starts when FastJet is 10NM behind and ends when 10NM in front. With such a speed difference it takes 20minutes.
During this time the airplanes' tracks get closer by almost one NM. Of course it's not much but as fly_ebos said it may result in some paperwork...
Greetings
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Poldek, once you put two planes 5/6 miles apart on parallel heading, and this situation last for 20/30 minutes AKA 200/250 NM, you must monitor them very carefully all the time, it's difficult when you have a busy sector, you can "forget" them, or forget the others 30, both dangerous situations, and few degrees won't save your ass from paperwork despite the separation machine, the numbers game or anything else.
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I had that one on appr to paris Orly haha
I asked if she wanted the full degree or if 2 degrees was close enough.
The female controller got back with a angry voice " no I said 1 degree left"
Fine I replied.....
Shortly after I got the left turn by 30 degrees to intercept the Loc....
Well well
I asked if she wanted the full degree or if 2 degrees was close enough.
The female controller got back with a angry voice " no I said 1 degree left"
Fine I replied.....
Shortly after I got the left turn by 30 degrees to intercept the Loc....
Well well
