What is the allowable margin of error for a DME arc?
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Joined: May 2008
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From: UK
What is the allowable margin of error for a DME arc?
What is the allowable margin of error for a DME arc?
I thought it was +/- 0.5nm, but people I've been flying with lately (who are more senior than me) think it's +/- 1.0nm, and we're all struggling to find a reference.
I thought it was +/- 0.5nm, but people I've been flying with lately (who are more senior than me) think it's +/- 1.0nm, and we're all struggling to find a reference.
Joined: Jul 2000
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From: My views - Not my employer!
Joined: Mar 2013
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From: EU
1nm for IRT anyway as said above. Have heard this was simply due to some DME's only doing whole miles, but I have never seen one myself so don't know.
FWIW I think 1nm is a massive tolerance, I am no hotshot by any means but either I have a knack for DME arcs or it's a generous allowance, because I used to be disappointed to not keep it within +-0.1 when doing my IR.
FWIW I think 1nm is a massive tolerance, I am no hotshot by any means but either I have a knack for DME arcs or it's a generous allowance, because I used to be disappointed to not keep it within +-0.1 when doing my IR.
Joined: Jun 2000
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From: Australia
In Australia the DME arc tolerance is plus or minus 2 DME and has been ever since the first DME was installed in this country. It is a common sense figure thank goodness.
