When was the first transatlantic flight?
Transatlantic flight
Hawker and Mackenzie-Grieve made the first attempt on 18 May, but engine failure brought them down in the ocean where they were rescued.  Raynham and Morgan also made an attempt on 18 May but crashed on take off due to the high fuel load. The Handley Page team was in the final stages of testing its aircraft for the flight in June, but the Vickers group was ready earlier.[4][5]