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).
Comparing the weights of EAC and 40/50 engine parts.
| Identifier | ExFiles\Box 3\2\ 02-page101 | |
| Date | 1st February 1924 | |
| R.R. 493A (HP 27) (CL 12 19-8-22) J.R.S. EXPERIMENTAL REPORT To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. RG.{Mr Rowledge} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to BY; PN.{Mr Northey} c. to WCR X200 200 Expl. No. 9930 REF: HS{Lord Ernest Hives - Chair}2/LGS.2.24 WEIGHTS OF EAC. AND 40/50 ENGINE. Attached herewith are weight XX of 40/50 and EAC. engine parts compared. The parts have been weighed in sections and it includes all parts given in the L.O.P. sheets. It will be seen that the EAC. is definitely more heavy in flywheel and clutch and crankcase and bearings. The flywheel diameters are - 40/50 17.125" - EAC. 15.9". Hs.{Lord Ernest Hives - Chair} | ||