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).
Issue of the 'Phantom' exhaust cut-out burning the leather cover on the rear brake adjustment and proposing potential solutions.
| Identifier | ExFiles\Box 68\1\ scan0346 | |
| Date | 28th October 1925 | |
| By.{R.W. Bailey - Chief Engineer} C. to Hs.{Lord Ernest Hives - Chair} X8490 Hm{Capt. W. Hallam - Head Repairs}/NRC{N. R. Chandler}4/EW28.10.25. "Phantom" Exhaust Cut-Out. We have had a number of cases of the leather cover over the rear brake adjustment being burnt away by the Cut-out, and so far as we can see, this is bound to happen whenever the Cut-out is used for any length of time with the engine working at a considerable power. We understand that the rear Silencer has been reduced 3/4" in length, but this undoubtedly will not be sufficient to remove this trouble. We suggest that an alteration to the shape of the outlet pipe will be necessary so as to cause gases to blow more down-wards, but this of course will have the objection that it will raise a lot of dust. Hm{Capt. W. Hallam - Head Repairs}/NRC.{N. R. Chandler} WPL | ||