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).
Statistical report on magneto failures for various engine models over a six-month period.
| Identifier | ExFiles\Box 47\3\ Scan079 | |
| Date | 5th May 1931 guessed | |
| -19- REMARKS. MAGNETO FAILURES. 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. March quarter. C.C. 2 1 2 3 } 8 11 W.P. - - - 3 } ____________________________________________________________________ Previous " 1 - 13 9 23 23 ____________________________________________________________________ Six months. 3 1 15 15 34 34 ==================================================================== | ||