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).
Power loss due to a silencer on vehicle 103-MC and recommending further testing.
| Identifier | ExFiles\Box 66\2\ scan0071 | |
| Date | 1st September 1925 | |
| X8230 To B.J. from Hs.{Lord Ernest Hives - Chair} 103-MC. X8950 X8230 Hs{Lord Ernest Hives - Chair}6/LG2. 9.25. I am not satisfied with the figures we have so far obtained of the loss due to the silencer as fitted to 103-MC. The tests are being repeated and we will let you have the results. We are surprised, however, to hear that loss of power can be appreciated when hill climbing. We recommend that in order to confirm that this is due to the silencer, a test should be made with the cutout open and closed. Before the car left here, we were able to obtain 70 m.p.h. with the cutout closed. Hs.{Lord Ernest Hives - Chair} | ||