100 years on the 15th June 1919 the Vickers Vimy of Alcock and Brown 'landed' in Ireland to complete the first non stop flight across the Atlantic Ocean. Landing is a loose term but as the old saying goes, 'if you can walk away from it, then it is a landing.' Since the intrepid days of Alcock and Brown, who it must be remembered had no guarantee of even surviving let alone completing the journey, progress has been rapid. Within 30 years the crossing was a commercial service, and within 40 years our Comet G-APDB had completed the first non stop jet service. Within another 20 years Concorde was making the journey at supersonic speeds.