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).
Standardisation and fitting of wind tone horns on the 25 HP and Bentley models.
| Identifier | ExFiles\Box 59\3\ Scan376 | |
| Date | 8th January 1936 | |
| Handwritten notes: Top middle: 86066. Top right: C.A.P. Top right: WST (struck through) Top right: Please note + return Top right: WSD To- Rm.{William Robotham - Chief Engineer} Copy to S.Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} (struck through) HS{Lord Ernest Hives - Chair}/Wst. ------------------------- Wind Tone Horns. We understand that Sales are still anxious to have as standard on the 25 H.P. and the Bentley wind tone horns. Schemes for fitting these horns to both of these cars have been completed for some little while now. We would be glad if you would arrange to fit up a 25 H.P. and a Bentley with these horns to our designs with a view to a test for standardisation. Until it is possible to provide a two-tone switch in the column these horns will be used with the single switch in the column and a changeover switch on the scuttle rail. We have made and issued designs for :- 1) Fitting the two-tone switch into the existing Bentley steering column controls, Lec 4890. 2) Fitting the complete Phantom III wheel and controls to the 25/30 H.P. Lec 4896. therefore, as soon as production permits, the two-tone switch on the column will be available for introduction provided the necessary tests have been completed. We have heard that breakage of the spider bracket for the horn on the 25 H.P. has been experienced, and we would like to know in what way the design has proved to be deficient. EV.{Ivan Evernden - coachwork} Since writing this memo. we have seen Messrs.Lucas' representative and have made suggestions for overcoming the fatigue fracture of the 25 H.P. chassis horn spider bracket. EV.{Ivan Evernden - coachwork} | ||