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).
Instructions for testing a pressure balance air line by fitting a standard and then a red topped unit.
| Identifier | ExFiles\Box 44\4\ Scan124 | |
| Date | 20th July 1929 | |
| X4038. Expl:Dept: Messrs. Rolls-Royce Ltd., Derby, Angleterre. July 20th, 1929. Messrs. Rolls-Royce Ltd., Sevres, Paris, France. Hotel De France Chateauroux Indre. MR. Hancock from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Fit standard set first of all, and if failure occurs by petrol entering the pressure balance air line, and it is certain that there is no leak, try similar tests with red topped unit sent at the same time as standard set. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||