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 report detailing specifications and modifications for various engine units and their components.
| Identifier | ExFiles\Box 161a\1\ scan0019 | |
| Date | 19th July 1939 | |
| -6- Remarks. HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}7/BA.19.7.39. Conventional 8 No.1 Unit - continued. 5. EB.4540 Rocker Cover. 6. EB.4506 Induction pipe. 7. EB.4713/4 Exhaust Manifolds. 8. EB.4599 Camshaft. 9. Rm.{William Robotham - Chief Engineer}576 Flywheel. 8 Cylinder High Power Alum Engine. New Unit, new pattern for top half and Cylinder Head. To have preferential treatment over the Conventional Unit. . EB.5079 Crankcase and Cylinder. EB.5100 Cylinder Head. EB.5109 Exhaust Valves. EB.5107/8 Inner and outer Valve Springs. B.60. Cast Iron Units. No.1 On Test fitted with Chain Driven Camshaft. No.2. Fitted in 1.B.50 Chassis. No.3 On test for Development running. No.4. Fitted in 3.B.50 Chassis. To be modified by incorporating Wraith type of Spring Drive necessitating mod. to the following in which pattern work in involved. Lower Half, new W'Case, Water Pump Adaptor, Water Outlet, Nose Bearing. All details are instructed under code BC.1/3 to be fitted in connection with 30,000 miles trials. Castings are anticipated before the holidays. No.5. New Unit in accordance with specification, HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}1/BA.5.4.39. The main items being, 1. EB.4910 Crankcase T.H. and Cylinder. C'Case T.H.Casting in operation. 2. EB.4685 Crankshaft. Crankshaft Forging in operation. continued. | ||