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).
Reverting to 5 or 10 degree helical teeth and the potential impact on the main control spring.
| Identifier | WestWitteringFiles\U\August1930-November1930\ Scan013 | |
| Date | 1st August 1930 | |
| EFC2/ADEO.8.30 contd. -6- to revert to 5° or perhaps 10° helical teeth with, as in the above case, absolutely sharp edges. It has generally been considered there should be a slight advantages with the slightly helical teeth, one of which is the greater ease of getting out of engagement quickly. It is possible however, that such an experiment would involve a change in the main control spring. EFC. | ||