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).
Querying power output differences between SS Experimental Cars and Production Chassis and requesting dynamometer testing.
| Identifier | ExFiles\Box 17\7\ Scan041 | |
| Date | 23th August 1929 | |
| Hs{Lord Ernest Hives - Chair}/AJL c Wop [crossed out] c EP.{G. Eric Platford - Chief Quality Engineer} Xy810. Mx{John H Maddocks - Chief Proving Officer}5/T23.8.29 re Power at Road Wheels - SS{S. Smith} With reference to your Hs{Lord Ernest Hives - Chair}/AJL2/MJ22.8.29 we should be glad to know - 1. Were the SS{S. Smith} Experimental Cars the same compression ratio as the present production. 2. Were they fitted with the present standard silencer. 3. Can 19 and 22-EX, the model cars, be put on the Dynamometer so that we can test the HP. We are impelled to bring these points forward as we are unable to obtain the power shewn on your chart on Production Chassis. There is no doubt that Production Chassis are comparable with the SS{S. Smith} Model as far as road performance is concerned. Mx{John H Maddocks - Chief Proving Officer} [signature] | ||