Meteor F.8 WA820 was adapted during 1948 to take two Armstrong Siddeley Sapphire turbojets, and from Moreton Valence, on August 31, 1951, established a time-to-height climb record. The pilot was Flt Lt Tom Prickett, of Armstrong Siddeley. A height of 9,843 ft was reached in 1 min 16 sec, 19,685 ft in 1 min 50 sec, 29,500 ft in 2 min 29 sec, and 39,370 ft in 3 min 7 sec. Air Service Training Ltd were responsible for the conversion.