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).
Modifications to the silencer to prevent heat affecting car bodies, specifically concerning the Phantom model.
| Identifier | ExFiles\Box 36\3\ scan 018 | |
| Date | 5th October 1926 | |
| To BJ. from Hs.{Lord Ernest Hives - Chair} c. to Wor.{Arthur Wormald - General Works Manager} c. to BY.{R.W. Bailey - Chief Engineer} X3003 Hs{Lord Ernest Hives - Chair}6/LG5.10.26. MODIFICATIONS TO SILENCER TO PREVENT HEAT AFFECTING BODIES. X3908 X8230 During our last visit to WW. we discussed with R.{Sir Henry Royce} the scheme which has been used in Paris to overcome this trouble. There are several doubtful features in this scheme :- (1) From our experience of running cars at high speeds in France, we should anticipate the lagging which they are fitting round the outside of the silencer, to be very badly damaged by stones. (2) When the Phantom silencer was designed, in order to get the desired capacity, the diameter was made as large as possible: as the lagging fitted by Paris increases this diameter, we think it is possible that it will either foul the torque tube or the brake ropes. It was agreed by R.{Sir Henry Royce} that they would design at WW. a suitable lagging for the silencer. Hs.{Lord Ernest Hives - Chair} | ||