Overrun vibration on the E.A.C. engine and the fitting of Hawk connecting rods.
| Identifier | ExFiles\Box 25\3\ Scan120 | |
| Date | 10th March 1924 | |
| R.R. 493A (40 H) (SL 12 12-7-23). J.H., D. {John DeLooze - Company Secretary} EXPERIMENTAL REPORT. 4634 Expl. No. 9550 634 REF: Hs {Lord Ernest Hives - Chair} 3/LG10.3.24. 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. {R.W. Bailey - Chief Engineer} WOR. {Arthur Wormald - General Works Manager} S E C R E T. OVERRUN VIBRATION ON E.A.C. We find that the Hawk(Aero Engine) connecting rods are 11.5" long and the bearing is the same diameter as the E.A.C. We are therefore arranging to fit a set of hawk(Aero Engine) rods on to the EAC. engine without delay. With the 11½" rod we shall have approximately the same connecting rod crank ratio as the 40/50 H.P. and the Hispano (4.28). Hs. {Lord Ernest Hives - Chair} | ||
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).