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).
Letter to S.U. Company Ltd. requesting a specific carburetter for testing, stating the engine's induction pipe diameter.
| Identifier | ExFiles\Box 31\4\ Scan007 | |
| Date | 6th February 1922 | |
| X1487 Hs{Lord Ernest Hives - Chair}1/LG. 6th. Feb. 1922. S.U. Company Ltd., Shipton Works, Prince of Wales Rd., Kentish Town - N.W.5. Dear Sirs, The diameter of the Induction Pipe in the engine in which we wish to try the S.U. Carburetter is 1¾". We hope the carburetter you send us will be the type having a control on the jet. Yours faithfully, | ||