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).
Technical notes and decision points for various chassis and engine components for EAC models 1, 2, 4 and 5.
| Identifier | ExFiles\Box 72\4\ scan0115 | |
| Date | 2nd February 1924 | |
| NOTES. EAC. Except where otherwise stated, these notes refer to EAC.1, 2, 4 and 5. Chassis. Description. Decision to be made by Crankcase & Bearings. We have definitely instructed oil supply to all bearings. To be confirmed by Exptl: Dept: What Torque Reaction Dampers have been instructed. Will these clear undershields? "E" Dept: Cylinder Bolts with forced on collars instead of pinned and Brazed. E.71217/8/9. Exptl:Dept: EAC.4. only. Bottom Half information incomplete. Brake equaliser passing thro'. Dal/M.2.2.24. m/c as req'd.{John DeLooze - Company Secretary} 100 castings Top Half instructed. No production Bottom Half Crankcases are instructed. Shall we instruct for EAC.4.? Mr Bailey. Exptl:Dept: require further design for oil pump Delivery Pipe. West WitteringHenry Royce's home town Spring Drive. We are instructing the Spring Cage in 5 layers of sheet. Exptl:Dept: and Tool Office Piston. Which compression, 4, 4 1/4, 4 1/2, 4 3/4 to 1. Exptl:Dept: Is Gudgeon Pin locking satisfactory in view of 40/50 experiments? Exptl:Dept: Cylinder. Front Cyl:Head cover different for EAC.1 & 2 or 4 & 5. "E" D.O. Shall we instruct Valve Guides with Extension Pieces. E.71298/9/300 (Similar to 20 HP). Exptl:Dept: Small dia: monel metal tubes E.71127 instructed. Shall we instruct monel for parallel tubes. These being tried by Exptl:Dept: Exptl:Dept: and By.{R.W. Bailey - Chief Engineer} H.R. 63 (50 T) (S.D.) 40B. 26-4-17 (Bm.) 2/158/14. | ||