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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).
Testing, approval, and standardization of car springs for specific vehicle models.

Identifier  ExFiles\Box 72\3\  scan0152
Date  10th October 1924 guessed
  
contd :- -2- S E C R E T.

approval of the springs as soon as possible.

The car is 48-PK - the Cabriolet which you have already tested and approved of with the recently condemned 12-1/2% springs.

We should like the Sales opinion on the springing as soon as possible because the experience so far is that we have had a completed standardisation sheet signed by both the Admin- istration and the Engineers for the 25% springs, which, after further tests, were turned down by Sales. We have also had springs which have been approved by Sales - rejected by the Engineers. Therefore, it is important that we should start the tests on the latest springs with the approval from both sides.

Apart from 9-PK car which is in France, we propose sending out 98-NK to France fitted with these springs. Apart, however, from spring tests on 98-NK - this car will be fitted with different radiators and bonnets so that tests can be carried out in parallel with over-heating.

In about a weeks time, we should have sufficient results from the bumping tests to give us a very good idea of what life we should expect from the springs.

The springs which will be run in France will be the 20% stiffer than standard which is according to R's instruct- ions for cars which are to be run abroad.

Hs.{Lord Ernest Hives - Chair}
  
  


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