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 from 'The Motor' magazine to G. H. Grylls regarding cornering tests and Tapley meter readings.
| Identifier | ExFiles\Box 142\3\ scan0195 | |
| Date | 7th May 1937 | |
| The Motor PROPRIETORS: TEMPLE PRESS LIMITED. MANAGING DIRECTOR: ROLAND E.{Mr Elliott - Chief Engineer} DANGERFIELD. LONDON: 5-17 ROSEBERY AVENUE E.C.1. TELEPHONES TERMINUS 3636 (PRIVATE BRANCH EXCHANGE) TELEGRAMS PRESSIMUS SMITH LONDON CABLES PRESSIMUS LONDON BIRMINGHAM: 61-65 NEW STREET TELEPHONES MIDLAND 4117 (3 LINES) TELEGRAMS PRESSWORK BIRMINGHAM COVENTRY: 6 WARWICK ROW TELEPHONE COVENTRY 4775 TELEGRAMS PRESSWORK COVENTRY MANCHESTER: 274 DEANSGATE TELEPHONE BLACKFRIARS 5038 (2 LINES) TELEGRAMS PRESSWORK MANCHESTER HEAD OFFICE: 5 TO 17, ROSEBERY AVENUE, LONDON, E.C.1. M.51.MG 7th May, 1937. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} H.{Arthur M. Hanbury - Head Complaints} Grylls, Esq., Rolls-Royce Ltd., DERBY. Dear Sir, I was very interested to receive your letter dated May 6th, although your experience with cornering tests is somewhat disconcerting. I take it that you have not actually used the Tapley meter in the way which I described in my article and that your opinions as to the acceleration which can be achieved when running in circles are based upon calculations. The curious thing is that in endeavouring to ascertain whether the meter readings could be believed, in the case of a sports car with a fairly rigid suspension, I made similar calculations myself and found that they checked up with a reasonable degree of accuracy. It has since occurred to me that these tests were made on full lock with a known turning circle, so that the outward creep may have made the true turning circle somewhat greater than I had supposed. However, it does not seem likely that any error from this cause would make sufficient difference to the results to account for so big a margin as you describe in your letter. Incidentally, my trials were also made on flat concrete. -1- | ||