There's also the issue that if following the river, a minor miss of the corner in the fog would put you in crane interaction territory. Also the 30ft between crane and 800ft minimum can easily be negated by a 1mb discrepancy in altimeter settings.
@NurseHolliday started
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There's also the issue that if following the river, a minor miss of the corner in the fog would put you in crane interaction territory. Also the 30ft between crane and 800ft minimum can easily be negated by a 1mb discrepancy in altimeter settings.