Registered as G-AMHT in March 1951 and transferred to the RAF as XA274 in March 1952. Underwent various trials during military service and returned to F.G. Miles Ltd at Shoreham as G-AMHT in December 1958. One of four ex RAF Marathons purchased by Miles and delivered to Shoreham, G-AMHT was the only one to be overhauled and flown. Its last flight, in April 1962, was the last Marathon flight ever made and the aircraft was scrapped at Shoreham in May 1964.

The first Farnborough show. The second Marathon prototype did not have a central tailfin initially. The Hastings on the left should be TG527 according to a spotter log. Second row, Short Sealand G-AIVX, Bristol Brigand RH809 and Bristol Freighter G-AIFO. Behind the Brigand, Firebrand EK844 and Lincoln RE292. Behind that, Viscount prototype G-AHRF and Nene Viking G-AJPH. Other aircraft include a Lancaster with a Dart turboprop up its nose, a Lincoln with Theseus outer engines, and a Lancastrian with Avon jet outer engines, VM732. Behind the Lancastrian is a Cierva Air Horse helicopter. Photo from: Nationaal Archief (Netherlands)

The second prototype of the Marathon initially flew without the central tailfin which was added in 1948 or 1949. To RAF in 1952 as VX229.

The first prototype Miles Marathon, first flown on 19 May 1946 wearing Miles test registration U-10. The aircraft was already registered as G-AGPD almost a year earlier on 5 June 1945; a peculiar British habit. This registration was not applied until July or August 1946. Photo from: Imperial War Museums

Built in 1950. Registered to Derby Aviation in 1955 and cancelled as destroyed in February 1964. It has 'DA' plus the registration last two letters 'GW' on the nose in the style of BEA.

The second prototype of the Miles Marathon over The Needles, off the Isle of Wight. Formerly G-AILH. Continuing as the Handley Page Marathon, the 20-passenger airliner type was unsuccessful and used mostly by the RAF as a navigation trainer.