Overrun vibration on the E.A.C. engine, concerning fitting Hawk connecting rods.
| Identifier | WestWitteringFiles\L\Jan1924-March1924\ Scan164 | |
| Date | 10th March 1924 | |
| R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. {John DeLooze - Company Secretary} EXPERIMENTAL REPORT. ORIGINAL Expl. No. 9550 / 634 H-N REF: Hs {Lord Ernest Hives - Chair} :/T/C10.3.24. To R; from Hs {Lord Ernest Hives - Chair} ; c; to CJ. NG. c; to E. {Mr Elliott - Chief Engineer} DA. {Bernard Day - Chassis Design} c; to HY. {Tom Haldenby - Plant 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/crank ratio as the 40/50 HP. and the Hispano (4.26). 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).