During 1929 D.H.60 Moth G-EBTD was fitted with a sealed Gipsy I engine and flown for 600hr, covering a distance of 51,000 miles. The engine received only routine maintenance and at the end of the reliability test the cost of replacement parts was a little more than £7.

Tiger Moth G-BFHH, owned jointly by Peter Harrison and Martin Campbell. The photograph was taken by GORDON BAIN near Redhill on August 23, 1982.

A view of the 525 h.p. de Havilland Gipsy Twelve engine of a D.H.91 Albatross.

Comet Racer CS-AAJ was powered by two de Havilland Gipsy Six R engines

The T.K.4 immediately after completion, at Hatfield in 1937. It first flew on October 30 with the Class B markings E-4.
The T.K.4 was designed around the 140 h.p. de Havilland Gipsy Major II engine.