On a quiet sunny afternoon at Dublin Airport in Ireland, a bored air traffic controller watched as two aircraft taxied out to line up for take off. One was an Aer Lingus Boeing 747 and the other a student pilot on board a Cessna 152. Both were cleared to line up and hold, the 747 on Runway 24 and the Cessna on Runway 35.
Firstly turning his attention to the Cessna the tower radioed: "Echo India Bravo Golf Lima, cleared to take off, Runway 35 with a left turnout to ‘the North West sector." The Cessna took off and put-putted its way into the sky.
Then turning his attention to the 747, the controller said: "Aer Lingus 105 cleared takeoff Runway 24, right turnout direct track to Shannon……….. Caution wake turbulence from a departing Cessna off Runway 35."