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).
Materials for the propeller shaft damper flywheels on the 25/30 HP chassis.
| Identifier | ExFiles\Box 105\2\ scan0156 | |
| Date | 20th November 1936 | |
| 537 RHC.{R. H. Coverley - Production Engineer} [struck through] c.B. [struck through] c. Rm.{William Robotham - Chief Engineer} BY/Cgh.{W Clough}11/W.20.11.36. 25/30 H.P.CHASSIS : PROPELLER SHAFTS. With reference to RHC{R. H. Coverley - Production Engineer}/GH.6/IB.16.11.36, we do not consider it would be advisable to produce the propeller shaft damper flywheels without the hardened friction surfaces, as we are of the opinion that soft surfaces would seize up on the phpsphor bronze friction plate which is fitted between the two flywheels. BY/Cgh.{W Clough} [Handwritten Annotation] Gry{Shadwell Grylls} [struck through] I suggest alum & cast iron. Rm{William Robotham - Chief Engineer} | ||