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).
Unaccounted 8% loss of horsepower in the transmission.
| Identifier | ExFiles\Box 156\4\ scan0097 | |
| Date | 30th June 1939 | |
| 1330 ? Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden} from Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}4/R,30.6.39. LOSSES IN THE TRANSMISSION. We have done some very useful work estimating the losses in tyres, and it now appears that we are left with 8% loss of clutch horse-power for which we cannot account. We should be glad if you would consider how we can find out where this power is going. Rm.{William Robotham - Chief Engineer} | ||