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).
Thickening of the flexible flywheel friction plate, updating part numbers, and requesting testing.
| Identifier | ExFiles\Box 130\3\ scan0105 | |
| Date | 9th August 1939 | |
| 1//10 To HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel} c. to By/CRL.{C. R. Lisson} Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler}7/JH.9.8.39. Friction Plate, Flexible Flywheel. The friction plate has now been thickened to reduce risk of distortion or cracking. For 10" Long clutch use GB.5293 replacing GB.4416 or 4898. For 11" " GB.5291 " Rm.{William Robotham - Chief Engineer}575 Please prepare 8 each and fit to engines in cars or on test beds whenever dismantled for any other reason, as we are anxious to prove the reliability of the thickened part. Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} | ||