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).
Page 2 of a letter to W.R. Boyle discussing gear manufacturing and comparing side valve vs overhead valve engines.
| Identifier | ExFiles\Box 128\1\ scan0322 | |
| Date | 7th April 1938 | |
| -2- W.R. Boyle, Esq. 7.4.38. him any further, or not. Apart from this, we should, of course, be very pleased for him to come over and discuss gear manufacture any time, as we do believe that, expensive though our methods are, we make a gear which is second to none for silence and durability. You will be intrigued to know that I challenged Taub to produce figures showing the side valve engine was inferior to the overhead valve, from this year's Proving Ground figures. I attach a copy of the information he sent me. I think he feels this proves that the side valve engine is really no good but the people who made the tests were not told about this. Yours sincerely, | ||