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 Siemens-Schuckert regarding the measurement of ignition impulse periodicity and transient frequencies.
| Identifier | ExFiles\Box 167\2\ img042 | |
| Date | 22th April 1937 | |
| 6103 22nd. April 1937 Lr{Mr Ellor}/Wst.10/AP. Messrs Siemens-Schuckert (Great Britain) Ltd., 30-34 New Bridge Street, LONDON E.C.4. Dear Sirs, We thank you for your letter of the 20th inst., reference RO{C. C. Rose - Export Manager}/EJT., and beg to say that the maximum periodicity of the ignition impulses we wish to measure is up to about 300 per second, but we regret to say that we are unable to give you any information regarding the approximate frequency of the transients, as it is this feature we are anxious to investigate. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||