Performance graph of a 3.9 Litre, 6-cylinder engine, showing B.HP and B.M.E.P. against R.P.M.
| Identifier | Morton\M19\ img283 | |
| Date | 7th February 1930 | |
| 85 x 115 M {Mr Moon / Mr Moore} /M 6 CYLS. 3.9 LITRES SINGLE CYL. ENGINE 48 H.K. ZENITH CARB R 39 CHOKE C.R. 5.5/1 B.M.E.P. (SINGLE CYL.) B.M.E.P. (6 CYL.) B.H.P. B.H.P. 120 100 80 60 ON 7/FEB/30 EN BEATEN R.P.M. 24 28 3000 34 38 4000 | ||
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).