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).
Engine mileage and maintenance requirements for 'Higher Power' units.
| Identifier | ExFiles\Box 111\3\ scan0162 | |
| Date | 16th February 1942 | |
| To: Sg.{Arthur F. Sidgreaves - MD} from Rm.{William Robotham - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} - 2 - Rm.{William Robotham - Chief Engineer} 1/h.{Arthur M. Hanbury - Head Complaints} 16.2.42. The mileage run by the remainder of these engines is as follows : 9 B. V ... ... ... 29,000 miles. Lorry ... ... ... 43,000 " In no case has it been necessary to re-grind a valve, re-bore a cylinder or replace a bearing on a "Higher Power" unit. Rm.{William Robotham - Chief Engineer} Enclosure. | ||