Originally Posted by
harry the cod
KD
I agree with a lot in that well written and common sense post but one genuine question. Why would selecting meters be frowned upon? Perhaps I'm missing something but I always have it set when operating through Chinese airspace. Charts are the first referral, meters selection is a reminder to verbalise my RT in meters, not Flight level and as a gross error check.
Harry
Possibly you've not been to DME before but I guess this is where the crew could have been caught out.
Ouch.