Log of component failures and replacements recorded by lap number during an endurance test.
| Identifier | ExFiles\Box 2\B002_X168\ 00000001-page138 | |
| Date | 5th July 1913 guessed | |
| Wor {Arthur Wormald - General Works Manager} /Ryl/L5713. 2. After 483 laps near side front spring bolt broke. * 560 * near side rear axle tube commenced to crack at the big flange. * 604 * the stationary tube of the steering column broke off near the bottom flange. * 664 * off side front spring bolt broke. * 784 * off side front spring broke. * 804 * off side front spring bolt broke. * 824 * off side front spring broke. * 844 * New front cross member fitted, old one broke right off at the flange. This was slightly cracked when the tests were begun. * 905 * Pendulum steering lever broke. * 988 * both rear half spring brackets cracked. * 1125 * the buffer spring inside steering tube broke. * 1175 * Double bevel rear axle removed and a new axle fitted (the cracks developed so bad that it was unsafe to run further). * 1215 * Buffer springs in side steering tube broke. * 1275 * Pendulum steering lever broke. * 1431 * 3 buffer springs in side steering tube broke. * 1494 * Bolts in rear engine brackets loose in frame. * 1541 * Bronze torque sphere broke off at the neck (old weak type). * 1571 * off side front spring broke, 5 plates broke at once across the centre. * 1691 * 2 buffer springs in rear end of side steering tube broke. | ||
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).