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 alternative Morganite brushes are satisfactory for the dynamo on 20 HP & 40/50 HP chassis.
| Identifier | ExFiles\Box 165\6\ img192 | |
| Date | 3rd February 1929 | |
| D Dept O.C. EFC. X.5670 EY5/G1 3.2.29. 20 HP. & 40/50 HP. CHASSIS - BRUSHES FOR DYNAMO. X.7670 X.5670 X 8473 In EFC1/T7.2.29 EFC. confirms that EG2 Morganite brushes are satisfactory as alternatives to Le Carbone Z. type brushes. In order to take advantage of this, we should order the 1st half of each series in EG2 Morganite, and the second half of each series in Le Carbone Z. type. It is useless having an alternative unless we check it by constant use. BY.{R.W. Bailey - Chief Engineer} | ||