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).
Chart tracking vehicle component faults and average mileage over several months in 1939.
| Identifier | ExFiles\Box 131\3\ scan0075 | |
| Date | 1st January 1939 | |
| 1939 JAN FEB MARCH APRIL MAY JUNE HYDRAULIC SHOCK DAMPERS A - OIL LEAK B - INTERNAL KNOCK C - ADJUST RIDE CONTROL D - CONNECTING LINKS SLACK E - TIGHT PISTONS Chart Data Jan: D, B, P177, P171 Chart Data Feb: B, D Chart Data March: C, A, D, B Chart Data April: B, D, A AVERAGE MILEAGE JAN B 41000 D 36900 FEB B 26800 MARCH B 30050 D 25000 APRIL B 26,080 D 18,000 * GEAR BOX NOISY A COMING OUT OF ENGAGEMENT B OIL LEAK C STRAINED SELECTOR GATE D WORN BEARINGS E GEARS NOISY SEIZED Chart Data Jan: B, A Chart Data Feb: E Chart Data March: W292, W314 DYNAMO TROUBLES A OILED UP COMMUTATOR B FAULTY REGULATOR C BRUSH STICKING D DRIVE RATTLE Chart Data Jan: B, C Chart Data Feb: A, B, W317 Chart Data March: C, A, B Chart Data April: RACES NOISY, N87, W317, W322 Chart Data May: B, A ROAD WHEEL HUBS RUBBING A - ADJUST END FLOAT B - FAULTY RACES Chart Data Jan: A, B, P161 Chart Data Feb: B Chart Data April: B AVERAGE MILEAGE JAN A 3500 B 10000 FEB B 26500 APRIL B 23,700 CLOCKS FAULTY AVERAGE MILEAGE JAN 16000 FEB 14800 PETROL GAUGE FAULTY T - TANK UNIT G - GAUGE Chart Data Feb: T Chart Data March: P174, W284, W301 Chart Data April: G Chart Data May: T GWH.{George W. Hancock - Head Chateauroux}7 | ||