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).
Letter discussing the results of a silencer cut-out test and comparing them to previous results obtained at Brooklands.
| Identifier | ExFiles\Box 11\4\ 04-page120 | |
| Date | 21th July 1932 | |
| x7941. To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} From G.W.H. Hotel de France, Chateauroux, FRANCE. 21.7.32. 19-EX. We herewith enclose the results of tests taken as you suggested, i.e, silencer cut-out by dismantling the intermediate pipe leaving an open exhaust from the front expansion chamber. The results, as you will observe, do not come up to the results you obtained on Brooklands, but it must be clearly understood that we have not a downhill to give us speed, as that obtained off the banking at Brooklands. With due respect to your speeds obtained, we cannot obtain any better results. G W H Hancock G.W.H. | ||