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POPPET VALVE ENGINES

FEDDEN AND SOME OF THE 31 MEMBERS OF THE COSMOS TEAM WHO MOVED TO PATCHWAY IN JULY 1920. POPPET VALVE ENGINES. JUPITER 290 - 595 hp 1920 - 35 CHERUB 18 - 36 hp 1920 - 29

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POPPET VALVE ENGINES

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  1. FEDDEN AND SOME OF THE 31 MEMBERS OF THE COSMOS TEAM WHO MOVED TO PATCHWAY IN JULY 1920

  2. POPPET VALVE ENGINES JUPITER 290 - 595 hp 1920 - 35 CHERUB 18 - 36 hp 1920 - 29 LUCIFER 118 – 140 hp 1923 - 30 MERCURY 400 – 1065 hp 1927 - 40 ORION 485 hp 1926 - 30 TITAN 200 - 240 hp 1928 - 30 NEPTUNE 300 hp 1929 - 31 PEGASUS 570 – 1030 hp 1931 - 44 PHOENIX 485 hp 1932 - 34 DRACO 590 hp 1932 - 35 HYDRA 750 hp 1934 - 35

  3. CHERUB T. O. POWER 18 – 36 hp BORE 3.35 in STROKE 3.80 in SWEPT VOLUME 67 cu in COMPRESSION RATIO 6.0 : 1 NATURALLY ASPIRATED DIRECT DRIVE FIRST RUN 1924 No. BUILT 82 2 CYLINDER HORIZONTALLY OPPOSED AIR COOLED

  4. CHERUB APPLICATIONS JOHNSON 60 - DAYTON OHIO BRISTOL BROWNIE 1924 WILLI MESSERSCHMIDTT WITH HIS 1928 M 17 Ello

  5. LUCIFER 3 CYLINDER SINGLE ROW AIR COOLED T. O. POWER 118 - 140 hp BORE 5.75 in STROKE 6.25 in SWEPT VOLUME 487 cu in NATURALLY ASPIRATED COMPRESSION RATIO 5.3 : 1 DRIVE - DIRECT Design 1919 – 1923 USED JUPITER CYLINDERS No BUILT 114

  6. LUCIFER APPLICATIONS THE SECOND INSTALLATION IN THE BRISTOL M.1D. SPORTS MACHINE BY 1925, THE LUCIFER HAD BEEN SOLD IN HOLLAND, SPAIN, RUSSIA, CHILE, NORWAY, JAPAN AND, ABOVE ALL, IN GERMANY.

  7. MERCURY (SECOND USE OF NAME) • CYLINDER • SINGLE ROW • AIR COOLED RADIAL T.O. POWER 645 / 840 hp BORE 5.75 in STROKE 6.50 in SWEPT VOLUME 1520 cu in COMPRESSION RATIO SUPERCHARGED DRIVE - GEARED DESIGN 1925 No. BUILT (1939 – 45) - 20,700

  8. SOME MERCURY APPLICATIONS SHORT CRUSADER - 1927 GLOSTER GLADIATOR - 1934 TYPE 142 – ‘BRITAIN FIRST’ - 1935 BRISTOL BLENHEIM IV - 1939

  9. THE TITAN 5-CYLINDER SINGLE ROW AIR COOLED RADIAL T.O. POWER 200 / 240 BORE 5.75 in STROKE 6.5 in SWEPT VOLUME 844 cu in COMPRESSION RATIO 5.0 : 1 NATURALLY ASPIRATED DRIVE - DIRECT DESIGN 1927 USED MERCURY SIZE CYLINDERS FLOWN IN THE BRISTOL 83E (JULY 1928) MANY MADE BY GNOME RHONE

  10. EXPERIMENTAL INSTALLATION THE BRISTOL 83E WITH THE TITAN 1 - IN 1928

  11. NEPTUNE 7 CYLINDER SINGLE ROW AIR - COOLED RADIAL T.O. POWER 300 / 315 hp BORE 5.75 in STROKE 6.5 in SWEPT VOLUME 1166 cu in COMPRESSION RATIO 5 : 1 NORMALLY ASPIRATED DIRECT DRIVE DESIGN 1929 No. MADE 2 USED MERCURY SIZE CYLINDERS

  12. APPLICATIONS - NEPTUNE NEPTUNE WAS MADE UNDER LICENCE, IN SIGNIFICANT NUMBERS, BY GNOME – RHONE FOR USE IN EUROPEAN AIRCRAFT. THERE WAS LITTLE UK DEMAND FOR THIS POWER LEVEL BRISTOL 110 A JAN. 1930

  13. SHORT-STROKE MERCURY T.O. POWER 400 hp BORE 5.75 in STROKE 5.0 in SWEPT VOLUME 1169 cu in COMPRESSION RATIO 5.3 : 1 SUPERCHARGED ‘S’ GEAR 7.6 : 1 DRIVE – GEARED 0.656 : 1 DESIGN 1930 ENGINE DIAMETER REDUCED TO 47 in WITH THE AIM TO REDUCE DRAG FLOWN IN BRISTOL BULLPUP JUNE 1931 1 ENGINE MADE 9 – CYLINDER SINGLE ROW RADIAL

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