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).
Bar chart tracking reported clutch and brake system faults from January to June 1939.
| Identifier | ExFiles\Box 107\2\ scan0078 | |
| Date | 30th June 1939 | |
| 1939 JAN FEB MARCH APRIL MAY JUNE CLUTCH JAGGER A - UNIT CHANGED B - PLATE CHANGED C - RELINED D - EASE SPLINES E - RESET FINGERS F - RESET PROP SHAFT DAMPER G - WORN OUT H - THRUST RACE NOISY Chart Data (Clutch Jagger): JAN: 7, FEB: 3, MAR: F181 (>8), APR: [data present], MAY: F216, SLIPS AT SPEED, JUNE: C WORN DOWN TO RIVETS AVERAGE MILEAGE 23,000 BRAKE SQUEAK A - ROUGH UP RESET B - RELINE C - PIERCE POLISH DRUMS D - FRONT PULL UNEVEN E - HAND BRAKE POOR F - ANTI JUDDERLINKS RATTLE S - REAR STICKS Chart Data (Brake Squeak): JAN: P158 (10), FEB: 13, MAR: 31500 MILES ZO, 22000 MILES, APR: 21520, MAY: W340, AVERAGE 23555 COMPLAINTS REPORTED ARE BASED ON A MILEAGE UP TO 13000 ABOVE THIS THEY ARE GENERALLY CHARGED FOR AND NOT REPORTED BRAKES INEFFICIENT RELINE OR ROUGH UP SERVO A - ROUGH UP B - RELINE Chart Data (Brakes Inefficient): JAN: 4, FEB: 7, MAR: 6, 5, APR: [data present], MAY: [data present] BRAKE MECHANISM SQUEAKS Chart Data (Brake Mechanism Squeaks): JAN: 2, FEB: 2, MAR: HAND BRAKE P185 GWH{George W. Hancock - Head Chateauroux} 5 | ||