Marham, early 80s, maxeval, silent procedures. 617 Sqn GR1 lines-up rwy 24, green from caravan, rolls, nav looks back over his shoulder and sees what looks like a red, screams Abort! Pilot aborts and rolls to a halt as 27 Sqn GR1 emerges from over the 'bump' getting airborne on rwy 06. They would have rotated into each other.
Junior pilot from 27 Sqn was late for a departed 4-ship and had been given the brief that the ultimate cut-short in "wartime conditions" was to get airborne off the nearest runway. He was posted to Germany as combat ready, "oh no you're not" said R**** G******. He went to C130s as I recall.
I never did find out why ATC didn't break radio silence.