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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).
Improvements to a chassis, focusing on the strength of the front springs and front wheel brakes.

Identifier  ExFiles\Box 66\4\  scan0192
Date  20th June 1925
  
+8310
To CJ. from R
c. to BJ. Wor. {Arthur Wormald - General Works Manager} .
c. to BY. {R.W. Bailey - Chief Engineer} Hs. {Lord Ernest Hives - Chair}
c. to FN.

S E C R E T.
R4/M20.6.25.

I N D I A. {Mr Adams} X.5770
X.8310 X.5410

Hs. {Lord Ernest Hives - Chair} was here on Friday the 19th.inst. with India.

This is a chassis which has been improved since the one left for France, which I saw. The following advantages were distinctly manifest, and clear up some doubts in my mind :-

(1) The front springs were 20% stronger than the old 20 HP. standard. You will remember that I did not anticipate any serious disadvantages from these, and in my opinion the change is a decided all round advantage, not only reducing the tendency for the steering to be disturbed when turning a sharp corner, or when applying the brakes, but it prevents the frequent striking of the buffers, and also very definitely keeps the front of the car more steady, so that the riding in any part of the car is decidedly more pleasant. In addition to this the front springs will be less liable to break, and as far as I can see these 4 advantages are not discounted by any disadvantage. It would be quite satisfactory to me to proceed with the supply of springs of this 20% - or even 25% - increased stiffness, and this same camber which gives us the correct clearance between the frame and the spring clips. I am delighted with this result.

(2) There are a few improvements I wish introduced in the actuating shaft of the front wheel brakes. These are in the hands of Derby and do not amount to any serious changes. It would be as well to do these at once so that there is no con-

contd :-
  
  


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