One of a series of training films to aid the recognition of airborne aircraft when viewed from the ground.
Film opens with Comet Mk 3 parked on the hardstanding. The Comet Mk 4 has been tested to destruction and will soon be introduced to commercial service. Comets Mk's 2 to 4 are basically similar, and for the purposes of this film, the Comet Mk 2 is covered since it is ready for use with RAF Transport Command on inter-continental travel.
Silhouettes are used first of all to establish the aircraft's primary views: the fuselage, fin and rudder, tailplane, wings, and engines set close to the fuselage. As the commentator describes the elements of the aircraft, they are added to the animated silhouettes in parallel with camera images depicting plan and side views. The differences between the Mk 2 and Mk 3 are described. Cut to aerial views of both types in flight as the commentator identifies the same salient features when viewed on the ground.
At the Farnborough 1954 airshow the Comet Mk 2 was followed down the runway by the Comet Mk 3 as they took off for a display. The Comet Mk 4 has the same appearance at the Comet Mk 3, both having external fuel tanks and a longer fuselage, distinguishing them from the Comet Mk 2.
Film ends with an acknowledgement of de Havilland as pioneers, having introduced high speed travel to the commercial world.