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).
Recommendation to modify cylinder core vents for the Wraith, Bentley, and 25/30 HP cylinder blocks.
| Identifier | ExFiles\Box 8\6\ 06-page09 | |
| Date | 25th September 1937 | |
| Handwritten: Swde - Which exactly of all the things that you've been tried, is this mod. To BY.{R.W. Bailey - Chief Engineer} & Rm.{William Robotham - Chief Engineer} From RHO/Vs.{J. Vickers} c. to Hs.{Lord Ernest Hives - Chair} c. to Da.{Bernard Day - Chassis Design} c. to HPS.{Horace Percy Smith - Experimental Factory Mgr} Handwritten: 619 RHO/Vs.{J. Vickers}2/MJ.25.9.37. Re. WRAITH MODIFIED CYLINDER CORE VENTS. R.CD.90. Referring to DA.{Bernard Day - Chassis Design}7/G.18.9.37, apart from the advantage to Machine Shops, the proposed modification would be a decided improvement in the Foundry. We would also recommend this modification for incorporation on Bentley and 25/30 HP. Cylinder Blocks as early as possible. RHO/J.{Mr Johnson W.M.} Vickers. Signature: RHC{R. H. Coverley - Production Engineer} | ||