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).
Potential commutation and overheating issues and the performance of brushes on a 29 coil armature.
| Identifier | WestWitteringFiles\M\2April1925-June1925\ Scan66 | |
| Date | 9th May 1935 | |
| Contd. -4- EFC4/T9.5.35. Though there may be some little criticism of the present output curve, we feel we are perfectly safe as regards:- (1) Commutation troubles (2) Overheating, not having forced the output up too much in the first instance. The difference between the performance with wide and narrow brushes on the 29 coil armature is not nearly so definite. EFC. | ||