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The use and fixing of two de-tuned high-frequency horns under the apron for high-speed cars.


Identifier  ExFiles\Box 59\3\  Scan215
Date  25th October 1932
  
WST
Hs {Lord Ernest Hives - Chair} /Wst.
c. Cx. {Major Len W. Cox - Advertising Manager}
c. DA {Bernard Day - Chassis Design} /EV. {Ivan Evernden - coachwork}
c. E. {Mr Elliott - Chief Engineer}
X6032
BY. {R.W. Bailey - Chief Engineer} 4/G. 25.10.32.

RE: USE OF TWO HIGH FREQUENCY HORNS DE-TUNED BY ABOUT HALF A TONE, AND FIXING SAME UNDER THE APRON.

Referring to Hs {Lord Ernest Hives - Chair} /Wst.3/AD.24.10.32. Mr. Davis reported this matter to me, and we at once wrote Sales pointing out that the scheme of using two horns slightly de-tuned as above was valueless unless the horn was mounted on the lamp brackets i.e. a rigid support, with the supports well separated from one another.

Our standard horn arrangement is, of course, one horn carried on a light cross member under the apron.

The above proposal was put forward for special high speed cars, because of its road clearing qualities.

BY. {R.W. Bailey - Chief Engineer} By
  
  
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).


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