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).
Failure analysis report for various components over a six-month period, categorized by car model.
| Identifier | ExFiles\Box 47\3\ Scan434 | |
| Date | 1st March 1932 guessed | |
| -12- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. IGNITION COILS. March Quarter. C.C. 9 3 9 - 21 } 26 Improved design of coil now W.P. 2 - 3 - 5 } standard and applicable all earlier cars. It is a Previous " C.C. 7 3 6 2 18 } 23 definite improvement. W.P. 4 - 1 - 5 } ------------------------------------------------- Six months. 22 6 19 2 49 49 MAG. HIGH TENSION WIRES & TUBES. March Quarter. C.C. - - - 5 5 } 14 Shield for H.T. Tube now available W.P. - - - 9 9 } See Depot Sheet No.202. Previous " C.C. - - - 8 8 } 18 W.P. - - - 10 10 } ------------------------------------------------- Six months. - - - 32 32 32 MAGNETO FAILURES. March Quarter. C.C. - - 2 5 7 } 13 W.P. - - 5 1 6 } Previous " C.C. - - 5 5 10 } 11 W.P. - - 1 - 1 } ------------------------------------------------- Six months. - - 13 11 24 24 PETROL TANK LEAKS. March Quarter. C.C. - 3 - 1 4 } 5 The leakages are mainly from the W.P. - 1 - - 1 } Air Vent Connection and a vellumoid washer is now being fitted to cure Previous " C.C. - 6 - 1 7 } 7 same. Depot Sheet No.222 deals W.P. - - - - - } with this trouble. ------------------------------------------------- Six months. - 10 - 2 12 12 | ||