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).
Provision of 20-HP power curves based on recent chassis dynamometer tests.
| Identifier | ExFiles\Box 74\4\ scan0192 | |
| Date | 1st March 1925 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X.4134 Mx{John H Maddocks - Chief Proving Officer}/McM5/MMC4.3.25. Re: 20-HP Power Curves. In reply to your Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG26.2.25, we attach hereto curve plotted from the average powers of the last 20 chassis on dyno test. We will forward the unit test shortly. We have had a similar request for average curve from EP.{G. Eric Platford - Chief Quality Engineer} and have sent him a copy of the attached curve. Mx{John H Maddocks - Chief Proving Officer}/McM. | ||