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).
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.{Mr Griffiths - Chief Accountant / Mr Gnapp} 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 | ||