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).
Component testing procedures, part standardisation, and delays caused by faulty steering in Phantom cars.
| Identifier | ExFiles\Box 148\5\ scan0030 | |
| Date | 17th January 1928 guessed | |
| contd :- -3- in the Phantom steering was known before any cars were delivered. The design of the improved steering which is the present standard was sent through by R.{Sir Henry Royce} before any Phantom cars were delivered to customers, yet, 750 cars were delivered with the known faulty steering. A certain amount of this delay was due to running a 10,000 miles test. Therefore, from this it can be argued that in some cases the fact of running a 10,000 miles test increases the amount of free of charge work because of the delay which occurs before the new part can be fitted. This delay is very likely to occur because it is quite impossible to rush a car off to France for every alteration; it would mean relays of cars running in France all the time. Therefore what happens is, the test is held up until we have a number of new parts to be fitted for test. In the meantime, of course, we are sending out cars with faults. This is one reason why it is impossible to carry out the 10,000 miles test in France for each new part. A point of interest is that there is no case on record yet of a part giving trouble when it has been standard-ised without running 10,000 miles. On the average approximately 50% of the modifications are standardised without running a 10,000 miles test in France. The reason why we have less trouble with parts which have not run 10,000 miles is that do not take the risk of sending through a standardisatio and recommending a part to be standardised without a 10, miles test unless we are very certain it is satisfactor We think this record is sufficient t we consider each item carefully before recommendi | ||