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).
Request to fit up the 12-G-4 crankshaft damper with stronger driving springs and reduced damping friction.
| Identifier | ExFiles\Box 25\3\ Scan354 | |
| Date | 20th August 1928 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X634 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}10/LG20.8.28. 12-G-4 CRANKSHAFT DAMPER. X5010 Flywheel damper. Will you please fit up the damper on 12-G-4 with the stronger driving springs specified in Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG19.7.28. and reduce the damping friction to a load of 7 6/11 lbs. at 17¼" rad. or 10 lbs/ft. friction. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||