Typed letter with postscripts discussing planet gear specifications.
| Identifier | ExFiles\Box 136\2\ scan0102 | |
| Date | 9th June 1939 guessed | |
| -3- already extended to our job; and to request your further consideration of these points. With personal regards, Believe me to remain, Yours sincerely, Edgar de Normanville. P.S. A query arose during our discussion, as to planet tooth strength. I find that by usual formula, for the job (2360 ins;lbs) one needs three planets of barely 5/8" width. To ensure the maintenance of silence, we use five planets of 5/8" width. P.P.S. Kindly return the diagram as it is the only copy I have. | ||
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).