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).
Log sheet detailing component failures, maintenance activities, and replacements against total run hours.
| Identifier | ExFiles\Box 80\2\ scan0199 | |
| Date | 26th August 1920 | |
| Contd. -2- Date. Total hrs. run. Remarks. 20.8.20 | 3 hrs. 45 mins. | New spring fitted N.S. F.391. 2356 lbs. O.K. 23.8.20 | 7 " 25 " | Torque rod broken N.S. - replaced by new one. 24.8.20 | 11 " 10 " | Bolt broken on centre main bearing brkt. O.S. front. K.419. 62 hrs. 25 mins. 25.8.20 | 22 " 35 " | O.K. 26.8.20 | 24 " 0 " | Rear cross member supporting spring bearing - bracket broken. O.S. and N.S. F.2729. 364 hrs. 25 mins. | ||