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).
Performance and testing of Bleriot cut-outs after 600 miles of use.
| Identifier | ExFiles\Box 48\3\ Scan246 | |
| Date | 22th April 1921 | |
| X. 4215 EFC. {E. Fowler Clarke - Electrical Engineer} from EP. {G. Eric Platford - Chief Quality Engineer} EP {G. Eric Platford - Chief Quality Engineer} 16/F22.4.21. [STAMPED TEXT] A.T. RECEIVED 26 APR 1921 [END STAMPED TEXT] X.4215 - BLERIOT CUT-OUTS. With reference to your EFC {E. Fowler Clarke - Electrical Engineer} 10/T19421 & the Bleriot cut-out which was supplied to us has been run on various cars on test for about 600 miles, and has given no trouble. It is very positive in action but rather noisy when making or breaking contact. I am of the opinion, however, that the cut-out is slightly lagged as compared with its condition when first fitted. It was noticed that there was only about 1 amp. reverse current when the cutting out took place. This current has now increased to about 2 or 3 amps. In all other respects the cut-out is quite satisfactory so far as our tests show. EP. {G. Eric Platford - Chief Quality Engineer} | ||