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).
Cross-sectional and inverted plan diagrams of a Cylinder Head (India IV) at a 5.1 to 1 ratio.
| Identifier | ExFiles\Box 103\4\ scan0086 | |
| Date | 15th September 1931 | |
| V555. SECTION M.M. .250RAD .5625 RAD +10/-10 1.200 +10/0 .700 +10/0 1.550 +10/0 2.250 +10 2.000 +10 ORIGINAL DIMENSION SECTION CCC SECTION AA{D. Abbot-Anderson} (CYL 4) .250RAD +10/0 1.200 +10/0 .700 +10/0 3.250 +15 3.400 +15 INVERTED PLAN (CYL 4) 1.125 RAD +25 .775 RAD +10/-10 1.700 +10/-10 CYLINDER HEAD (INDIA IV) 5.1 TO 1 REFER TO E 54853 FOR DIMENSIONS (STANDARD) 15 SEP 31 S8/29/9 | ||