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).
Testing resonance chambers on the J.III exhaust system pipe.
| Identifier | ExFiles\Box 104\2\ scan0026 | |
| Date | 6th June 1932 | |
| X5230. RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/MA.6. 6. 32. J.{Mr Johnson W.M.} III EXHAUST SYSTEM. We want to make some tests with resonance chambers on the front section of the J.III exhaust pipe. As all our baffles and chambers are made up for 3" O.D. pipe we should like a pipe of this dimensions fitted in as shewn. For test purposes we shew the minimum height of pipe above the road that we can run with, and to give us clearance round brake ropes etc. for our resonance chambers it may be necessary to drop the pipe by this amount. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 1 print Att: | ||