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).
Specifying the flywheel and clutch assembly for R.80 Units No. 9 & 10.
| Identifier | ExFiles\Box 124\1\ scan0244 | |
| Date | 19th August 1939 | |
| 1044d spec To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c. to By/NS.{Norman Scott} c. to Rm{William Robotham - Chief Engineer}/wdl. Rm{William Robotham - Chief Engineer}/WRC.4/JH.19.8.39. R.80 Units No.9 & 10. In reply to Rm{William Robotham - Chief Engineer}/wdl.21/JH.11.8.39. the flywheel and clutch should be as follows :- 11" Long Clutch, Red springs. GB.5292 flexible disc. GB.5291 friction plate. GB.5290 flywheel for R.R. starter. GB.5303 flywheel for Lucas starter. Please prepare flywheels for Lucas starters for the above units, but it would be advisable to insure that one wheel for the R.R. starter is available in case there is a holdup in delivery of the Lucas motors. | ||