Originally Posted by
Centaurus
Anecdotal evidence reveals the New Zealand CAA tolerance in their particular manual for a DME arc, is plus or minus 2.5 nm. That seems reasonable. Yet in flight tests, some Examiners/ ATO's fail a candidate if he is outside plus or minus 1.5 NM which is ridiculous. If true, each Examiner seems to have his own ideas..
The FAA instrument rating standard for a DME arc is plus or minus 1.0 n.m.