IIRC we called them ‘Rangers’ to keep civil ATC aware of mil ac during the Cold War as our prime purpose was to test access, basing and overflight. Two stories make me 😂. Libya 2011, Tripoli does not have your flight plan to which the Tornado leader replied, ‘the reason for that will become obvious soon.’ Italy early to mid 80s where a Jag pilot sends a ‘Thank You’ post card to Auntie Liz c/o Buck Pal for the privilege of testing ABO during a splendid w/e to Nothern Italy; sadly, the HQ 1 Gp staff officers were less impressed…