Originally Posted by
binbrook
. I have a vague memory that we could go through airways at X000+500ft, but maybe that was only in emergency. Anyone out there got an old RAFAC?
I am pretty sure that was correct for a VFR transit. We used to request a procedural crossing. We used to request the airways crossing some 10 minutes in advance (30 miles in our case) and rarely we had to change level too. If we arrived early we had to orbit and if late reapply.