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).
Car with defective pistons sent for repair and feedback on the performance of a 20 HP engine.
| Identifier | ExFiles\Box 15\3\ Scan033 | |
| Date | 16th July 1929 | |
| SG.{Arthur F. Sidgreaves - MD} FROM R.{Sir Henry Royce} Copy to Hs.{Lord Ernest Hives - Chair} x7040 SECRET. 18-EX. R.5/M16.7.29. X. 7040 X. 7770 With reference to the above car which I promised to send to London on Monday last, I decided after all to send it to Derby as the pistons were somewhat defective, and would cause a bad impression, so it went to Derby on Sunday, where it may have the latest proportioned pistons fitted, and sent from there to you. I am still extremely pleased with the 20 HP. which has the full move for acceleration and high speed power, equivalent to 'Japan'. 70 m.p.h. seems easily reached by its speed indicator. R.{Sir Henry Royce} | ||