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).
Confirming the starter's final reduction ratio and refuting a different value.
| Identifier | ExFiles\Box 64\3\ scan0078 | |
| Date | 9th August 1926 | |
| To EFC. X7610 BY/RD6/ML9.8.26. Referring to your EFC1/T17.7.26, re ratio of starter, I understand we gave you the numbers of teeth in the various wheels and therefore the final reduction is 22.37 as you state and we knew it was that, we have no knowledge of giving anybody a ratio of 22.26. BY/RD. [Stamp text: RECEIVED 21 AUG 1926] | ||