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Aviation History
1924
1924 - 0754.PDF
of aero engines, aero instruments, spares, aerial cameras, etc., etc. As regards the engines, these will comprise three very well-known and successful British types, namely, the 240"h.p. Armstrong-Siddeley " Puma," the 200 h.p. " B.R.2 " rotary, and the 210 h.p. Wolseley " Viper " water-cooled V (Hispano-Suiza type). The following brief specifications of each of these three engines may be of interest :— 230 h.p. Armstrong-Siddcley " Puma."—Six-cylinder verti cal water-cooled. Bore, 5-71 ins. (14S mm.) ; stroke, 7-48 ins. (190 mm.) ; compression ratio, 4-9 to 1 ; normal b.h.p., 246 at 1,400 r.p.m. ; maximum b.h.p. at 1,500 r.p.m. ; weight dry, 641 lbs. (290-3 kgs.) ; weight per h.p., 2-6 lbs. (1-17 kgs.); petrol consumption, 0-446 pint (0-252 litre) per h.p.-hour; oil consumption, 0-038 pint (0-021 litre) per h.p.-hour ; direct drive. DECEMBER 4, 1924 200 h.p. " B.R.2."—Nine-cvlinder rotary air-cooled radial. Bore, 5-51 ins. (140 mm.); stroke, 7-09 ins. (180 mm.) ; compression ratio, 5-26 to 1 ; normal b.h.p 230 at 1,300 r.p.m.; maximum b.h.p., 234 at 1 350 r p m -' weight dry, 500 lbs. (226-5 kgs.) ; weight per h.p., 2-17 lbs! (0-983 kgs.) ; petrol consumption, 0-69 pint (0-391 litre) per h.p. hour; oil consumption, 0-09 pint (0-051 litre) per h.p.-hour ; direct drive. 210 h.p. Wolseley " Viper."—Eight-cvlinder water-cooled V. (90 deg.).—Bore, 4-72 ins. (120 mm.) ; stroke, 5-12 ins. (130 mm.) ; compression ratio, 5-3 to 1 ; normal b.h.p., 210 at 2,000 r.p.m. ; maximum b.h,p., 220 at 2 100 r p m : weight dry, 508 lbs. (230-2 kgs.) ; weight per h.p., 2-54 lbs'. (1-15 kgs.); petrol consumption, 0-52 pint (0-294 litre) per h.p.-hour ; oil consumption, 0-028 pint (0-015 litre) per h.p.-hour ; direct drive. ARMSTRONG-SIDDELEY MOTORS, LTD., COVENTRY THIS firm, which is allied with Sir W. G. Armstrong, Whitworth and Co., Ltd., and is responsible for the aero-engine branch of this famous house, is exhibiting two of its products at this year's Paris Aero Show. These will be the successful Armstrong-Siddeley " Jaguar " and " Lynx " aero engine*. A SUCCESSFUL BRITISH AERO ENGINE AT THE PARIS SHOW: A front view of the Armstrong- Siddeley "Jaguar " radial air-cooled engine. The rear end of the " Jaguar," showing magneto, carburettor and conical mounting plate. ARMSTRONG-SIDDELEY " LYNX " AT PARIS : On the left a rear view of the engine, showing the conical mounting plate, and on the right a three-quarter front view. 754
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