QFIs' Crew Room, "X" Sqn, RAF Church Fenton, c.1979. Squawk box goes - "Duty Stude here Sirs, just thought you might like to know that a 747 is on short finals." Appropriate scything sarcastic comments made by steely-eyed instructors...
Twenty secs later, the whole hangar shook as 747 breezed on by!! Apparently, studes had chatted up an airline trg captain at local event, and he duly appeared a week later with company jet. Spent 10 mins putting his machine through low-level manoeuvres that we never thought we'd see!!