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 A. T. Speedometer Co. detailing the weights of instrument components.
| Identifier | ExFiles\Box 59\2\ Scan206 | |
| Date | 24th June 1933 | |
| A.{Mr Adams} T. SPEEDOMETER CO., LTD. CONTINUATION. -2- Messrs. Rolls-Royce Ltd. 24th June, 1933. Weight of ordinary 5" glass 3 oz. Weight of two ball races 1 1/4 oz. The difference, therefore, between these three items only is 9 1/4 oz., 4 1/4 of which (the glass) would have to be carried by the lighter instrument, if you use that method of lighting. I will report further to you as soon as we have investigated the total final weight of both these instruments. Always at your service, We beg to remain, Yours faithfully, For THE A.T. SPEEDOMETER CO. LTD., H R Buckland Director. | ||