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).
Unsuccessful test on a 20/25 model to resolve a silencer spitting issue by removing the front expansion box.
| Identifier | ExFiles\Box 130\2\ scan0039 | |
| Date | 10th July 1936 | |
| X1113 To Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} (Paris). c. to By.{R.W. Bailey - Chief Engineer} c. to Hd.{Mr Hayward/Mr Huddy} c. to Mx.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}21/KW.10.7.36. With reference to your note of July 3rd from Cricklewood, we have run a 20/25 without the front expansion box, to see if we could get rid of the spitting in the silencer. The spitting was very bad without the front expansion box, so this cannot be considered a cure. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||