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).
Comparative power curves for engine F.XIV-MS-27 with compression ratios of 5.3/1, 5.5/1, and 6/1.
| Identifier | WestWitteringFiles\T\2January1929-June1929\ Scan093 | |
| Date | 26th January 1929 | |
| COMPARATIVE POWER CURVES WITH COMPRESSION RATIOS 5.3/1, 5.5/1, & 6/1 ENGINE F.XIV - MS - 27 CAMSHAFTS LONG DURATION I.C. 40° A.B.D.C. FUEL 100% BENZOLE SPARKING PLUGS LODGE A40s C/B HP CORRECTED B.H.P CRANKSHAFT R.P.M. 6/1 PISTONS 5.5/1 PISTONS 5.3/1 PISTONS POWER CURVE PUBLISHED FOR CONTRACTORS (DES 729) NORMAL R.P.M. R.N.D. 26.1.29. | ||