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).
Performance graph comparing horsepower (HP) against RPM for various engine configurations.
| Identifier | ExFiles\Box 5a\5\ 05-page194 | |
| Date | 24th December 1931 guessed | |
| LORD CHOLMONDELEY GFT 43 NO 448 H.P. R.P.M 20.5 M.P.H 41.03 M.P.H. 61 1/2 M.P.H. 71.75 M.P.H G.F.T. 43 AS BELOW WITH STANDARD VALVE SPRINGS G.F.T. 43 AS BELOW BUT WITH H2 CAMSHAFT & EXP COIL G.F.T. 43 WITH SPECIAL EXHAUST SYSTEM, HIGH COMP PISTONS, STRONGER VALVE SPRINGS & STD CAMSHAFT AVERAGE OF 10 1ST HALF T SERIES CHASSIS G.L.N. 60 G.F.T. 43 WITH SMALL PLATE REMOVED FROM END OF REAR SILENCER IE. EQUIVALENT TO CUT OPEN | ||