From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Dimensional measurements of the Spectre No. 2 engine cylinder bores with centri-cast type liners, taken without cylinder heads in position.
| Identifier | ExFiles\Box 93\4\ scan0016 | |
| Date | 11th February 1935 | |
| SPECTRECodename for Phantom III Nº 2. CYLINDER BORES — DIMENSIONS TAKEN WITHOUT CYL. HEADS IN POSITION (WITH CENTRI-CAST TYPE LINERS) NOTE:- BLUE FIGURES DENOTE DIAMETERS OF CYL. BORES WITH COLD WATER IN JACKETS RED FIGURES DENOTE DIAMETERS OF CYL. BORES WITH WATER AT 80°C. IN JACKETS + ABOVE DRG. SIZE - BELOW DRG. SIZE 3.250" NOTE:- DIMENSIONS 'AA{D. Abbot-Anderson}' ARE TAKEN PARALLEL TO CRANKSHAFT AND 'BB' AT RT.ANGLES TO IT A BLOCK DIAGRAM: Cylinders 1, 2, 3, 4, 5, 6 FRONT OF ENGINE C OF CRANKSHAFT B BLOCK DIAGRAM: Cylinders 1, 2, 3, 4, 5, 6 TABLES OF MEASUREMENTS: DIAMETERS 'AA{D. Abbot-Anderson}' ON 'A' BLOCK 1 2 3 CROWN 4 5 6 .750 -.0002 +.0002 +.0002 -.0005 +.0006 +.0003 +.002 +.003 +.0023 +.0018 +.0024 +.002 3.500" +.0005 +.0006 +.0004 +.0005 +.001 +.001 +.0025 +.002 +.002 +.002 +.0026 +.0018 5.800 -.001 -.0025 -.0023 -.0024 0 -.0006 +.0003 +.0003 +.0012 +.0005 +.0006 +.0005 6.875 0 0 -.001 +.0005 +.0007 +.0005 +.001 +.001 0 +.0013 +.0015 +.0025 SKIRT DIAMETERS 'AA{D. Abbot-Anderson}' ON 'B' BLOCK 1 2 3 CROWN 4 5 6 .750 -.0004 +.0004 -.0002 0 -.0007 -.0002 +.0015 +.0028 +.0025 +.0025 +.0027 +.0012 3.500" +.0003 +.0005 +.0005 +.0013 +.0005 +.0003 +.0013 +.0026 +.0023 +.0027 +.0025 +.002 5.800 -.0013 -.0017 -.0005 -.0005 -.0013 -.0007 0 -.001 0 -.0003 -.0008 -.0003 6.875 -.0005 -.0005 +.0005 0 0 0 +.001 0 +.0015 +.001 +.0015 +.0005 SKIRT DIAMETERS 'BB' ON 'A' BLOCK 1 2 3 CROWN 4 5 6 .750 -.0003 +.0005 +.0003 -.0002 +.0007 +.0006 +.0027 +.0027 +.0023 +.0025 +.0025 +.0023 3.500" +.0005 +.0005 +.0002 +.0003 +.001 +.0007 +.0025 +.0015 +.0017 +.0025 +.0025 +.002 5.800 -.0015 -.0005 -.002 -.0003 -.0003 -.0006 0 +.0005 -.0015 +.0008 -.0008 +.0003 6.875 -.0005 0 -.0005 +.0005 +.0007 0 +.0007 +.0007 -.001 +.0013 +.0013 +.0005 SKIRT DIAMETERS 'BB' ON 'B' BLOCK 1 2 3 CROWN 4 5 6 .750 0 +.0004 +.0005 0 +.0002 +.0002 +.0015 +.0028 +.002 +.0025 +.002 +.0025 3.500" 0 +.0005 +.0005 +.0005 +.001 +.0003 +.0023 +.0026 +.0027 +.0015 +.0026 +.002 5.800 -.0015 -.0017 -.0005 -.0005 -.0002 -.0005 -.0005 -.001 -.0003 0 +.0005 -.0008 6.875 -.0005 -.0005 +.0005 0 0 0 +.001 0 +.0015 +.001 +.001 +.0005 SKIRT STAMP: ROLLS-ROYCE, LTD. P.R. TM FEB 12 1935 DERBY | ||