[1] The firm quickly acquired the aircraft component construction activities that were previously being carried out by H H Martyn & Co. for the war effort in order to perform subcontracted work from Airco; the provision of additional production capacity had been a major motivating factor for Airco's involvement in founding the company.

[1] Following the Armistice of 11 November 1918 and the end of the First World War, the company suffered financial losses from the collapse of Airco, only receiving partial compensation for the cancellation of outstanding production orders.

With the move to metal construction, the Sunningend factory was soon deemed to be no longer suitable; accordingly, in 1928, Gloster purchased the aerodrome at Brockworth, including all of the adjacent hangars and neighbouring office accommodation.

[1] Frank Whittle had first met Gloster's designer and test pilots in April 1939 and an official approach from the Air Ministry followed.

[4] On 15 May 1941, the first official test flight of the Gloster E.28/39 W 4041/G with a turbo-jet engine, invented by Sir Frank Whittle took off from RAF Cranwell (earlier taxying trials, in which the E.28/39 briefly became airborne, and therefore "flew", were carried out at the company's airfield at Brockworth).

Once the E.28/39 had flown, the Air Staff told Gloster to stop work on their F.18/40 nightfighter (other aircraft could be adapted to replace it) to concentrate on the jet fighter.

In 1945, a Meteor F Mk.4 prototype, stripped of armament, achieved a World Airspeed Record of 606 mph (975 km/h) with Group Captain H. Wilson at the controls.

During early 1946, another F Mk.4 prototype was used to set a world air speed record of 616 mph (991 km/h) true airspeed with Group Captain "Teddy" Donaldson flying the highly modified Meteor, nicknamed "Yellow Peril."

In 1952, the two-seat, delta winged Gloster Javelin was developed as an all-weather fighter that could fly above 50,000 feet (15,000 m) at almost the speed of sound.

This modern aircraft proved to be too heavy to take off from the short airfield in Brockworth, and was instead fitted out to the bare minimum and given a very small fuel load.

It was then flown in a short hop to RAF Moreton Valence seven miles (11.27 km) to the south west, where the aircraft would be completed.

One blind alley was the work done (along with eight other British companies) on designing an aircraft to the same exacting Ministry specification that spawned the BAC TSR-2.

[7] In the late 1960s/early 1970s the Saunders-Roe Folly Works, by then owned by Hawker Siddeley was merged with the Gloster works to form Gloster-Saro utilising both companies' expertise in aluminium forming to produce fire appliances and tankers in the Gloster factory at Hucclecote, mostly based on Reynolds-Boughton chassis.