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).
Approval to use Bentley type rocker arm bushing on the 20/25 car following successful experimental tests.
| Identifier | ExFiles\Box 88\4\ scan0067 | |
| Date | 15th May 1934 | |
| COPY. To Hs.{Lord Ernest Hives - Chair} from E/Lid.{A. J. Lidsey} c. Wor.{Arthur Wormald - General Works Manager} By.{R.W. Bailey - Chief Engineer} Sft.{Mr Swift} E/Lid.{A. J. Lidsey}1/HP.15.5.34 Bentley Rocker Arms. With reference to Sft.{Mr Swift}6/MJ.1.5.34 (Copy of which is attached for Hs.{Lord Ernest Hives - Chair}) we have no objection to using Bentley type rocker arm bushing on the 20/25 car provided that experimental tests prove that there are no disadvantages. Will Hs.{Lord Ernest Hives - Chair} please arrange for an engine to be fitted up accordingly. We suggest 21-G-IV, 10,000 miles test car. E/Lid.{A. J. Lidsey} | ||