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 document analyzing the costs and benefits of 10,000-mile tests, with a focus on testing in France.
| Identifier | ExFiles\Box 148\5\ scan0031 | |
| Date | 17th January 1928 guessed | |
| contd :- -4- be standardised without running 10,000 miles. Below is the cost of running 10,000 miles tests and the number of standardisation sheets issued :- No. of modifications. Cost of testing in France Oct.1924 to Nov.1925 18 £5,494 " 1925 " " 1926 77 £3,659 " 1926 " " 1927 72 £577 It will be seen therefore that during the last year although we have standardised approximately the same number of modifications, there has been a very substantial economy in the cost of testing in France. For this year our total cost for car testing - (this includes road tests, engine bench tests, bumper tests and dynamometer tests) is £4,500. Last year for the same tests the cost was £8,000. Testing in France is very expensive. To summarise our views of the 10,000 miles tests, we consider that this test is a very useful and necessary test but it should be carefully considered as to what value it is likely to be before the test is undertaken. We hold the opinion that the best people to judge the value of the 10,000 miles tests are those who actually carry out the test. A 10,000 miles test can mean anything - everything depends upon the manner in which it is carried out. For instance, to send a car to France to test a radiator for 10,000 miles is absolutely a waste of money. We do not care who does the test, it would still be a waste of money. If money was no object, we should certainly agree with the policy of running every single part 10,000 miles in France contd :- | ||