Check ur heading?
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Join Date: Dec 1999
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Check ur heading?
Vectoring 2 a/c last night onto finals. Both a/c on parallel headings but tracks were converging by at least 10 degrees. If I had been busy, I might not have noticed it resulting in a loss of separation.
Having been a PPL many years ago I remember that u always checked DI against compass for slip errors that always occur. But do u do this in modern glass cockpits? How do you check heading assigned is correct? Should I use the phrase 'Check DI against compass'.
Three a/c departed later including the 2 inbounds and it was quite clear from this which one was out, in terms of headings vs track.
SW
P.S. Both a/c were at similar levels and speed.......
Having been a PPL many years ago I remember that u always checked DI against compass for slip errors that always occur. But do u do this in modern glass cockpits? How do you check heading assigned is correct? Should I use the phrase 'Check DI against compass'.
Three a/c departed later including the 2 inbounds and it was quite clear from this which one was out, in terms of headings vs track.
SW
P.S. Both a/c were at similar levels and speed.......
Join Date: Aug 1999
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Well, you'll be lucky if a compass is accurate to better than 10 degrees anyway.
Modern glass instruments and the gubbins behind them are pretty accurate, and duplicated. A lot of types have some degree of comparator warning, e.g. a flag that appears if the two systems disagree by more than a few degrees.
CPB
Modern glass instruments and the gubbins behind them are pretty accurate, and duplicated. A lot of types have some degree of comparator warning, e.g. a flag that appears if the two systems disagree by more than a few degrees.
CPB
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I wouldn't use that phrase if you were controlling a modern jet because we don't align the DI to the compass as you do in a light aircraft. Usually if there's any doubt about headings, the controller will ask us what heading we are on and then use that 'calibration' for further vectors.
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If the height was different, there could have been a wind effect if the winds aloft were strong.
Some pilots give you their heading rounded up or down. So if you'd planned the second ones track based on the first ones "given" heading then it might have been out a couple of degrees.
Some pilots give you their heading rounded up or down. So if you'd planned the second ones track based on the first ones "given" heading then it might have been out a couple of degrees.
