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).
Test report on different types of fabric couplings, detailing their performance under specific conditions.
| Identifier | ExFiles\Box 47\2\ Scan448 | |
| Date | 19th December 1930 guessed | |
| FABRIC COUPLING TESTS. FLYWHEEL R.P.M. 285. STROKE 6" FLYWHEEL WT. 48 LBS. All couplings rivetted and carried on spigoted spider. Type. Total time Reversals. No. Remarks. Hrs. Mins. Standard. 17 30. 597,060 103 Finished. " 9. 31. 325,380 96 " " 55. 8. 1,891,780 103 " "A" 6. 53 236,060 106 " "A" 60. 0 2,059,160 106 O.K. "A" 60. 0 2,061,090 106 O.K. Hermetic 12. 23 424,280 1 Finished. + " 61. 0 2,093,060 2 O.K. + " 61. 0 2,094,900 3 O.K. +Bushed between plates. Actual average R.P.M. 286. At present we stop the test if the coupling has not failed after 60 hours. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||