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).
Duplex exhaust system for the 33-G-VII 'Hs' Car.
| Identifier | ExFiles\Box 119\4\ scan0240 | |
| Date | 5th August 1939 | |
| 1025 By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design} Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork} c. By/NS.{Norman Scott} c. Da{Bernard Day - Chassis Design}/MCS. Rmll/R.5.8.39. DUPLEX EXHAUST SYSTEM for 33-G-VII. Hs{Lord Ernest Hives - Chair}' CAR. It is apparent that if we put the 'Corniche' Exhaust System on this car we have to restrict the axle movement. If we can use a single expansion box, this trouble does not occur. We have a very excellent single expansion box on the Ripple. We recommend that the system drawn for Hs{Lord Ernest Hives - Chair}' car should consist of two of these boxes, which will enable the tail pipes to go over the axle and the expansion boxes to be in the centre bay. We admit that we have no experience of this system, but it is true of any duplex exhaust system on 8-cylinder engines, and it will be up the to Experimental Dept. to make it function. Rm.{William Robotham - Chief Engineer} | ||