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Aviation History
1958
1958 - 0879.PDF
27 June 1958 897 LIONESS AN inverted version of the Lion, intended to improve the pilot'sforward view. Compression ratio 5.8 : 1; geared but unsuper- charged. Normal, 470 h.p. at 2,000 r.pjn.; maximum, 500 h.p.at 2,200 r.p.m. Weight, 1,000 lb. This engine has been confused with the Lion "S," a designation which was a contraction of(e.g.) Lion VS—the "S" signifying "supercharged." A picture on page 896 proves that a supercharged Lioness was, nevertheless,built. It has been stated that a Lioness was installed in a Fairey Fawn, but there is no photographic evidence of this, though it ispositively known th^at a supercharged "upright" Lion was fitted. 'J CUB A SIXTEEN-CYLINDER water-cooled engine with the cylin-ders arranged in four banks of four. The angle between the two upper banks was very much smaller than that between the twolower banks, and the angle between the upper and lower banks on each side of the centreline was 90 deg. A rated output of1,000 h.p. at 1,800 r.p.m. was claimed, and the first version was geared. Later an ungeared type appears to have been developed.Installed in an Avro Aldershot and in two Blackburn Cubaroos. JAVELIN A SIX-CYLINDER inverted in-line air-cooled engine known bythe Napier model number E.97. Direct drive; unsupercharged. Variants—Javelin I: Presumed to have been a developmentengine. Rating believed to have been 150 h.p. at 2,000 r.p.m. and 170 h.p. at 2,300 r.p.m. Javelin I A: Series known to have existed.Javelin II: Normal power, 155 h.p. at 2,100 r.p.m.; maximum power, 170 h.p. at 2,400 r.p.m. Weight, 397 lb. Javelin III:Stroke increased from 5.25in to 5.5in. Normal power, 160 h.p. at 2,100 r.p.m.; maximum power, 172 h.p. at 2,325 r.p.m. Weight,425 lb. Javelin III A: Fitted with a Rotax generator and starter- motor. Weight, 448 lb. Installations—Great Britain: British Klemm Eagle. PercivalGull Four II and Mew Gull I. Martin-Baker MB.l. Spartan Arrow. Australia: Wackett Codock. CULVERIN A LICENCE-BUILT version of the Junkers Jumo 204, beinga two-stroke, compression-ignition engine with two opposed pistons in each of its six vertical cylinders. Two crankshafts.International rating, 720 h.p. at 1,700 r.p.m. Weight, 1,785 lb approx. (N.B.—The Jumo 205 licence was also acquired and the Left, Ropier VI. Below, Rapier II. RAPIER A SIXTEEN-CYLINDER air-cooled engine with four rows of four cylinders arranged (when viewed end-on) in the form of a letter H. Geared and supercharged. Variants—Rapier I: Development engine. Rated output 300h.p.; weight, 640 lb. Rapier II: A normal output of 305 h.p. at 3,500 r.p.m. at 10,000ft; maximum output 355 h.p. at 3,900 r.p.m.at 10,000ft. Weight, 720 lb. Rapier IV: This engine differed from the Rapier II only in supercharger gear ratio. Its normal outputwas 340 h.p. at 3,500 r.p.m. at sea level and its maximum output 385 h.p. at 3,900 r.p.m. at sea level. Rapier V: A developmentengine for the Rapier VI. Connecting rods of forked and plain- rod type instead of articulated. Strengthened crankcase, of mag-nesium alloy. Reduction-gear casing separate casting instead of integral. Oil pumps rearranged; downdraught carburettor. Auto-matic ignition timing. Rapier VI: Generally as Rapier V. Inter- national power 360 h.p. at 3,500 r.p.m. at 4,000ft; maximumpower 395 h.p. at 4,000 r.p.m. at 5,800ft. Weight, 707 lb. Installations—Great Britain: Airspeed Courier. BlackburnHST.10. Bristol Bulldog (test bed), de Havilland D.H.77. Fairey Seafox. Saunders-Roe Cloud. Short Mercury. Left, Culrer'm. Right, Javelin,
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