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).
Requirement for elongated silencers due to body designs with luggage lockers and potential exhaust issues.
| Identifier | ExFiles\Box 14\6\ Scan275 | |
| Date | 25th January 1933 | |
| Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} at W. X7230. Hn{F. C. Honeyman - Retail orders}1/I/25-1-33. In 'Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/KT19-1-33 you mention that in your investigations into the criticisms of the London Trials car 48-MB you removed the elongated silencer and fitted a standard, thereby reducing the trouble. There is now quite a demand for the elongated silencers because of the growing popularity of the body with a luggage locker extending right down to the back end of the frame. We have been given to understand that with such bodies and the standard length exhaust system there is a distinct possibility of the fumes finding their way into the passenger compartment, to the discomfort of the occupants and, therefore, the silencer should be extended in order to discharge beyond the body. Do you think that with such extended exhaust pipes we are likely to have further complaints of exhaust booms? And do you think that when we commence to receive chassis with the new resonance silencers the trouble is likely to disappear and, finally, do you still think we ought to provide elongated silencers when the body extends to the back end of the chassis frame? Hn.{F. C. Honeyman - Retail orders} | ||