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).
Monthly failure analysis chart from January to June 1939 for various vehicle components.
| Identifier | ExFiles\Box 131\3\ scan0112 | |
| Date | 1st January 1939 guessed | |
| 1939 JAN FEB MARCH APRIL MAY JUNE REAR SILENCER BAFFLE LOOSE COMPLAINT RATTLES Data Points: P160, P139, P198 REAR AXLE OIL LEAKS Data Point: P206 AVERAGE MILEAGE JAN 11,000 FEB 436 APRIL 5,761 LOWEST MILEAGE REAR AXLE NOISY DUE TO: A - FAULTY THRUST RACE B - FAULTY ROLLER RACE C - THRUST RACE CAGE BROKEN D - BROKEN BALLS IN THRUST RACE E - NO PRE LOAD F - GEAR TEETH PICKED UP G - NOSE BEARING H - EXTENSION FRACTURED FAULTY BEDDING Data Points: P160, W292, W286, P166, W324, W328, P221, P240, P250, W351 Notes: SLACK IN DIFF FAILED G1 4080 THRUST RACE NOW BEING FITTED I.E. IMPROVED CAGE INCREASED PRE LOAD DOUBLE ROLLER RACE BEING TRIED REAR AXLE DRIVING SHAFT FAILURE Data Points: W330, W325 REAR AXLE DRIVING DOG RATTLE A - RATTLE CHANGED B - BROKEN C - LUBRICATED D - OVERSIZE FITTED Data Points: W287, 005, 003, P206 NOTE A SIGNIFIES DRIVING DOGS CHANGED FROM O.S TO N.S. & N.S. TO O.S. GWH{George W. Hancock - Head Chateauroux} 4 | ||