Johnny Johnson (RAF officer) London. On 22 June 2018 he was honoured by having a train named after him. Johnny Johnson (RAF officer) Squadron Leader George Leonard "Johnny" Johnson, (born 25 November 1921) is a retired Royal Air Force officer and Britain's last survivor of the original members of No. 617 Squadron RAF and of Operation Chastise, the "Dambusters" raid of 1943. George Johnson (known within the family as Leonard) was the sixth and last child born to Mary Ellen (née Henfrey) and Charles Johnson. He was born in the village of Hameringham in the East Lindsey district of Lincolnshire, England. His mother died
No. 618 Squadron RAF changed to converted Mosquito Mk.IVs. The "Highball" device was intended to bounce across the sea until it hit an enemy ship, sank and exploded. Unlike the cylindrical Upkeep weapon used by No. 617 Squadron RAF in Operation Chastise, the "Highball" was more spherical. The Mosquito selected for the conversion work to carry "Highball" was the Mk.IV series II: the work entailed removing the bomb bay doors and equipping the aircraft with specialised carriers enabling them to carry two "Highballs", each weighing 1,280 lb (580 kg), in tandem. The bombs were designed to skip across water and to provide weapon stability