I THE AERO ENGINE COLLECTION AT THE

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THE AERO ENGINE COLLECTION AT THE BRISTOL BRANCH THE ERA OF THE PISTON ENGINE BRISTOL - MANUFACTURED POPPET AND SLEEVE – VALVE ENGINES WORLD WAR 1 TO 1965 ( REVISED JAN. 2010 )

AERO ENGINE MANUFACTURE IN BRISTOL BRAZIL STRAKER & Co. OF FISHPONDS, BRISTOL (WW 1) COSMOS ENGINEERING Co. (1918 RE-ORGANISATION) BOUGHT BY BRISTOL AEROPLANE Co. IN 1920 TO BECOME THE AERO-ENGINE DEPARTMENT BECAME ENGINE DIVISION OF BRISTOL AEROPLANE Co. JULY 1944 BECAME BRISTOL AERO-ENGINES Ltd JANUARY 1956 MERGED WITH ARMSTRONG SIDDELEY IN APRIL 1959 TO BECOME BRISTOL SIDDELEY ENGINES BECAME PART OF ROLLS - ROYCE IN 1966

BRASIL STRAKER AND COSMOS ENGINES CURTIS OX-5 RECONSTRUCTED 1914 / 15 R-R HAWK 1 &2 MANUFACTURE (334) WW 1 R-R FALCON Mk. 2 & 3 MANUFACTURE (1775) WW 1 RENAULT 80 hp V 8 MANUFACTURE (610) WW 1 MERCURY (2 ROW) IN-HOUSE DESIGN 1917 JUPITER IN-HOUSE DESIGN 1918 LUCIFER IN-HOUSE DESIGN 1919

CURTIS OX- 5 (RECONSTRUCTED BY BRAZIL STRAKER IN 1914) T. O. POWER BORE STROKE SWEPT VOLUME COMPRESSION RATIO NORMAL ASPIRATION DRIVE - DIRECT REDESIGN TESTED 102 hp 4. 0 in 550 cu in 5. 4 : 1 LATE 1914 JAN. 1915 No. RECONSTRUCTED 300 LIFE INCREASE - 5 hr to 100/200 hr WATER - COOLED 900 ‘ V’ UPRIGHT 8 CYLINDER

ROLLS - ROYCE FALCON -- T. O. POWER BUILT BY BRAZIL STRAKER IN WW 1 265 hp (Mk 2) 275 hp (Mk 3) BORE IN – LINE 4. 0 in STROKE 5. 75 in SWEPT VOLUME 600 ‘V’ UPRIGHT 867 cu in COMPRESSION RATIO (Mk 1) 5. 1 : 1 (Mk 3) 5. 3 : 1 NATURALLY ASPIRATED DRIVE - GEARED 12 CYLINDER 0. 589 : 1 WATER – COOLED

BRISTOL - BUILT FALCONS - APPLICATIONS No. BUILT AT BRISTOL Mk 2 Mk 3 - 400 - 1375 MAIN USE BRISTOL F 2 B FIGHTER A MAJORITY OF FALCON ENGINES WERE BUILT AT BRISTOL

THE FEDDEN / BUTLER DESIGN PARTNERSHIP THE CODE - LETTERS FB ALWAYS PRECEDED BRAZIL STRAKER PART No. s AND THIS CONTINUED UNDER THE BRISTOL AEROPLANE Co. OWNERSHIP

BRAZIL STRAKER (COSMOS) – MERCURY T. O. POWER BORE STROKE SWEPT VOLUME 347 hp 4. 375 in 5. 8125 in 1223 sq in COMPRESSION RATIO 5. 0 : 1 NATURALLY ASPIRATED DRIVE - DIRECT DESIGN FIRST RUN FIRST FLIGHT 1917 JAN 1918 4 TH SEPT 1918 3 BUILT - 200 ORDERED (ORDER CANCELLED 11 TH NOV 1918) 14 CYLINDER DOUBLE ROW AIR COOLED RADIAL

INSTALLATIONS / APPLICATIONS BRAZIL STRAKER (COSMOS) MERCURY 1918 - EXPERIMENTAL INSTALLATION IN BRISTOL 21 A (SCOUT F 1) 1919 - TESTED BY P. W. S. BULMAN AT FARNBOROUGH AND SET UNOFFICIAL RECORDS THAT STOOD FOR 7 YEARS 5. 4 min to 10, 000 ft 16. 25 min to 20, 000 ft

THE COSMOS JUPITER 1 T. O. POWER BORE STROKE SWEPT VOLUME 368 5. 75 7. 5 1753 hp in in cu in COMPRESSION RATIO 5. 0 : 1 NATURALLY ASPIRATED DRIVE – DIRECT DESIGN 1 ST RUN FIRST FLIGHT APRIL 1918 29 OCT. 1918 25 MAY 1919 No BUILT (BEFORE 1920) 5 9 CYLINDER SINGLE ROW AIR COOLED RADIAL

COSMOS JUPITER 1 - APPLICATIONS AN EARLY INSTALLATION IN THE BRISTOL BADGER (1919) SOPWITH SCHNEIDER OF 1919 CAPABLE OF 165 mph