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).
Decision on the material selection for Wraith crankshafts.
| Identifier | ExFiles\Box 8\5\ 05-page17 | |
| Date | 30th December 1937 | |
| Files SWDC - 617 To: Hy{Tom Haldenby - Plant Engineer}'s. Cr.{Mr Cra???ster / Mr Chichester}Ho. Cr.{Mr Cra???ster / Mr Chichester}RIC. C.RM.{William Robotham - Chief Engineer} ROY.{Sir Henry Royce}8/B. 30.12.37. WRAITH CRANKSHAFTS. It is noted from Ry.5/G.29.12.37 that it is not possible to standardise the use of Carbon Steel in the early Wraith Chassis, as suggested in our memo' Roy.{Sir Henry Royce}23/B.23.12.37, and we are accordingly proceeding with the purchase of the first 100 Crankshafts in V.C.M. (Nitrided) Steel as hitherto. Such Dies will be running shortly and we shall then stamp the two Crankshafts requisitioned by the Experimental Shop in Carbon Steel without Nickel. ROY.{Sir Henry Royce} | ||