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).
Progress report on cast iron engine units, detailing specifications, modifications, and component parts.
| Identifier | ExFiles\Box 161a\1\ scan0038 | |
| Date | 28th August 1939 | |
| -6- HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}2/BA.28.8.39. B.60.Cast Iron Units - continued 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 is 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. Anticipate having unit ready for test 29.8.39. No.5 New Unit in accordance with revised specification, HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}1/BA.25.8.39. The main items being, 1. EB.4919 Crankcase T.H. and Cylinder. 2. EB.4685 Crankshaft. 3. PD.429-439 Crankshaft Damper. Wraith type. 4. EW.1967 Aerolite pistons. 5. EB.3844 Cylinder Head. 6. EB.5051 Rocker Cover ED.{J. L. Edwards}430 Oil Filler incorporated. 7. Ex.33420 Exhaust Valves - solid stem. 8. Ex.33974 Camshaft. 9. EB.5008 Wheelcase. 10. EB.3813/4 Exhaust Manifolds. 11. EB.5020 Breather Connection. 12. GB.5303 Flywheel. C'Case T.H.Casting in operation. Crankshaft Forging in operation. We anticipate completing this unit by the end of Sept. No.6 New Unit in accordance with specification issued in HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}1/BA.5.4.39 and HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}8/BA.26.5.39. 1. EB.4918 Crankcase T.H. and Cylinder to suit Wilcox Rich Tappets. 2. EB.4685 Crankshaft. 3. EB.4913 Camshaft. 4. EB.4992 Tappet Body. 5. EB.4923 Exhaust Valves. continued. | ||