The de Havilland DH.108 "Swallow" was a British experimental aircraft designed by John Carver Meadows Frost in October 1945. It was a flying wing designed to evaluate swept-wing handling characteristics at low and high subsonic speeds for the proposed early tailless design of what would later become the Comet airliner. Three examples of the DH.108 were built, to the Air Ministry specifications E.1/45 and E.11/45.
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´t it the prototype of the first DH.106 Comet ?