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).
The testing and approval of B.W.6 magneto contact covers.
| Identifier | ExFiles\Box 65\3\ scan0372 | |
| Date | 11th June 1929 | |
| X7791 c EFC ✓ Mx{John H Maddocks - Chief Proving Officer}1/T11.6.29 RE MAGNETOS With reference to the B.W.6. magneto contact covers supplied to us for test in accordance with Hy{Tom Haldenby - Plant Engineer}14/G 18.4.29. These have been tried on a number of chassis, they do not in our opinion allow any more noise to escape from the cambox than the standard type. We consider they would be satisfactory to introduce as standard. EP{G. Eric Platford - Chief Quality Engineer}'s Dept. agree that they are OK. Will you please let us know what you wish us to do with these covers now. Mx{John H Maddocks - Chief Proving Officer} [signature] | ||