The F.9/40 prototype, DG202/G, was used in deck trials on the HMS Pretoria Castle.
Eight F.9/40 prototypes were built with three different test engines.
DG206/G was powered by two Halford H.1s and first flew on March 5, 1943 / March 1943. There was some instability and modifications were made in the tail.
The Meteor F.Mk I first flew on January 12, 1944. It was traded to the United States for a Airacoment. Twelve of these equipped the No. 616 Squadron in July 1944.
Note: The G suffix in the serial number indicated that the aircraft was to have an armed guard at all times while on the ground.