 On 23 March 1948, John Cunningham, flying a modified Vampire Mk I, which had been furnished with extended wing tips, powered by the Ghost engine, achieved a new world altitude record, having attained a maximum altitude of 59,446 ft (18,119 m).On 14 July 1948, six Vampire F.3s of No.54 Squadron RAF became the first jet aircraft to fly across the Atlantic Ocean when they arrived in Goose Bay, Labrador.