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).
Letter to Messrs. Smith & Sons enclosing blueprint performance curves for two dynamo types, A and 3A.
| Identifier | ExFiles\Box 3\5\ 05-page076 | |
| Date | 27th May 1919 | |
| X.295 EPC1/AT 27.5.19. Messrs. Smith & Sons, Great Portland Street, London, W.1. Dear Sirs, We are now sending you, as promised, blueprint curves in duplicate of the performance of the two dynamos, type A and type 3A, which we have obtained on our bench. One sheet gives the comparative performance of the type A dynamo, starting in the cold condition and working upwards, and when heated up by having run on load for about 1 1/2 hours. The other sheet gives the comparative performance of the two dynamos with both in the hot condition. Yours faithfully, | ||