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).
Test results for two Lucas ER6 magnetos, numbers 53 and 54b, for fitting to an experimental chassis.
| Identifier | ExFiles\Box 40\2\ Scan131 | |
| Date | 8th September 1926 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.Y.B. Order No. WB{Mr Brazier/Mr Bell} 102 Customer's No. X8793 Lucas ER6 magnetos. We have received from the makers two further Lucas type ER6 magnetos Nos. 53 and 54b for test. These have now been given a short acceptance test and are considered quite OK for fitting to experimental chassis. (Fully advanced) The high speed sparking was as follows:- No 53 - 3400 rpm No 54b - 3600 rpm and the low speed sparking:- No 53 No 54b Advance 90 rpm. 75 rpm Central 130 " 115 " Retard 170 " 155 " Signed H.E.W. This Sheet must be filed on completion of the work. | ||