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).
Noise insulation solutions for the B.5 series Bentley.
| Identifier | ExFiles\Box 138\1\ scan0316 | |
| Date | 27th January 1939 | |
| 1160. To By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to GWH.{George W. Hancock - Head Chateauroux} - W/K Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}2/JH.27.1.39. NOISE INSULATION FOR B.5. Bentley. We are now satisfied that on the B.5. series Bentley it will be possible to use Seapak in 6 layers as on the present production chassis. This together with the pile carpet is sufficient to damp out engine noises coming through the dashboard. We would suggest however, a layer of hessian sacking stitched in the centre' of the six layers of Seapak. This has been done on all our exptl. E.V. cars for strengthening purposes and is recommended for all chassis, as we find in practice that if the Seapak is distributed much it tends to disintegrate. Rm{William Robotham - Chief Engineer}/F.Dodd. | ||