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).
Report comparing body construction, noise, and design features between car models 1.B.50 and 2.B.50.
| Identifier | ExFiles\Box 111\2\ scan0354 | |
| Date | 4th May 1939 | |
| -3- 4.5.39. Fitting similar tyres to 1.B.50 did not notice- ably detract from the front compartment's quietness. On the whole 2.B.50 is a far more pleasing product than 1.B.50. The body is different and appears to be of a type that one would expect to be quieter. It is possible that most of the rumbling in front compartment of 2.B.50 may be due to the steel disc wheels. In building these bodies the makers do not appear to take as full advantage as they might of the deadening effect of body "goo" orwhatever the coachbuilders call it. Humbers use it all over the place and under the metal floorboards. In Springfield we had it smeared all over body and door panels etc. Several body panels on 1.B.50 behave like the bottom of an oil can. They may be pressed in with the hand and will then spring out again. The buffeting effect of wind, even at moderate car speeds, must have an effect that does not contribute to the health of the car. RM{William Robotham - Chief Engineer}/E.W.Caswell. | ||