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).
Reporting on the improved performance of a 20 HP chassis fitted with 3.200 diameter pistons.
| Identifier | ExFiles\Box 105\2\ scan0197 | |
| Date | 23th April 1929 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} x5040 Hs{Lord Ernest Hives - Chair}2/LG23.4.29. c. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} 20 HP. CAR. x5770. We have had a short run on a 20 HP. chassis with the engine fitted with 3.200 dia. pistons. The performance is a very marked improvement over the standard car. The acceleration up to 40/45 m.p.h. is now approx. the same as the Phantom. We expect to have this car running with a complete body on, on Thursday. Hs.{Lord Ernest Hives - Chair} | ||