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).
Summary report detailing vehicle component failures over two quarters for various models.
| Identifier | ExFiles\Box 130\4\ scan0150 | |
| Date | 31th March 1937 guessed | |
| - 8 - 25 HP. 30 HP. PH.II. PH.III. TOTAL. GRAND TOTAL. REMARKS. ELECTRIC PETROL GAUGE FAILURES. March Quarter. C.C. 13 4 - 7 24) C.P. - 1 2 - 3) 27 These gauges are still troublesome. Previous Quarter. C.C. 7 5 1 4 17) C.P. - 1 - - 1) 18 Six Months. 20 11 3 11 45 45 REGULAR RUNNING OF ENGINE. March Quarter. C.C. 9 45 - 5 59) C.P. - 2 - - 2) 61 These are usually cured by minor adjustments to tappets, plugs, carburetter etc. Previous Quarter. C.C. 14 77 - 7 98) C.P. - - - 1 1) 99 Six Months. 23 124 - 13 160 160 SPEEDOMETER FAILURES. March Quarter. C.C. 19 29 1 19 68) C.P. - 1 - 2 3) 71 Usually trip recorder failure or noisy. Makers are now improving trip recorder mechanism. Previous Quarter. C.C. 14 13 2 5 34) C.P. - - - - -) 34 Six Months. 33 43 3 26 105 105 IGNITION FAILURES. 10 Coil. 5 Condenser. March Quarter. C.C. 8 10 3 2 23) 5 H.T. wires. C.P. 5 1 3 2 11) 34 2 rotor. 2 Contact breaker points. 2 Switchbox. Previous Quarter. C.C. 11 4 3 - 18) 2 Distributor head. C.P. - - 1 - 1) 19 1 L.T. wires. 5 Magneto. Six Months. 24 15 10 4 53 53 | ||