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Aviation History
1927
1927 - 0484.PDF
30. 1927 ENGINES AT THE DISPLAY: The water-cooled Napier " Lion," Series VIII (direct drive) model The Napier " Lion," with its now familiar " broad arrow " arrangement of cylinders, needs little reference here, for ever since it was first produced towards the end of the Great War it has gained world-wide popularity and has built up a remark- ably successful reputation. The "Lion," also has reached the Series VIII stage—which model forms the subject of our illustration. Normally, the " Lion " is a geared engine, Series V and VI being supercharged, but there are also direct drive models and an inverted model (the " Lioness "). The power developed varies from 450-600 h.p. The Rolls-Royce " Condor " is the most powerful engine employed in British aircraft as standard equipment, for it develops 650 h.p. at 1,900 r.p.m. It is produced in two models, geared and direct drive, and while primarily intended for heavy • bombing machines such as the Hawker" Horsley " and the Avro " Ava," it has also been fitted in single-seater fighters. ENGINES AT THE DISPLAY : The water-cooled 650 h.p. Rolls-Royce " Condor," Series IV model 442
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