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).
The concluding page of a letter or report, with a note regarding readings taken at 600 r.p.m.
| Identifier | ExFiles\Box 50\4\ Scan196 | |
| Date | 20th April 1928 guessed | |
| -2- Contd. At present the matter is rather a puzzle, but we should be able to finally to arrive at some conclusion in the manner which we have mutually suggested. Yours faithfully, A.M.I.E.E. FOR ROLLS-ROYCE LIMITED. N.B. Our readings were all taken at a driving speed within a few r.p.m. of 600 r.p.m. | ||