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 for dynamometer horsepower figures and valve timing for the Goshawk 11, for comparison with other cars.
| Identifier | ExFiles\Box 74\4\ scan0166 | |
| Date | 3rd April 1922 | |
| EP.{G. Eric Platford - Chief Quality Engineer} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to Hs.{Lord Ernest Hives - Chair} √4134 O P's & HP, GOS II E2/M3.4.22. GOSHAWK 11. X.4219 X.4226. 4134 We should be very glad if you could supply us with figures giving the HP. of the Goshawk 11. car, taken on the dynamometer from 500 to 2250 revs. of the engine. We have some similar curves for the Marmon, Buick, Humber, Dodge and the Hupmobile cars supplied by Mr. Hives 19.5.21, and we would like to make a comparison of the torque characteristics. All the cars named, with the exception of the Marmon, shew their maximum torque at well below 1000 R.P.M. In the case of the Humber the hump occurs at about 700 r.p.m. We wish to compare with Goshawk 11. We would also like to know what actual timing of the valves you are obtaining on hot engine Goshawk 11. E.{Mr Elliott - Chief Engineer} | ||