Scheme to try a new 36 slot dynamo armature for the Wraith III and Bentley III models to increase output.
| Identifier | ExFiles\Box 168a\3\ img472 | |
| Date | 4th March 1938 | |
| 6142 DA. {Bernard Day - Chassis Design} 6/G.4.3.38. CHILDS WRAITH III and BENTLEY III. DYNAMO ARMATURE. In view of the increased output now required from the dynamo, it is desired to try a scheme with a 36 slot armature fitted to the standard dynamo. This is an interim measure by which we shall find what increase in output is available with the new armature alone. A further increase in output can be expected by fitting the bronze brush gear now being tried out on P.III dynamo. The adaptation of this will be shown on a later scheme :- The projects then will be :- (1). 36 slot armature in standard dynamo. (2). 36 slot armature, bronze brush from cradle mounting. (3). As (2) but with long magnet case and sling mounting. DA. {Bernard Day - Chassis Design} | ||
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).