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).
Sound insulation felt for mats in 25 HP Bentley and Phantom III cars.
| Identifier | ExFiles\Box 138\1\ scan0237 | |
| Date | 14th March 1936 | |
| X 1/60 To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}3/JH.14.3.36. Sound Insulation. Further to Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}1/KW.13.3.36. we would add that the felt used for the mats in the case of 25 HP. Bentley, and Ph. lll cars is obtainable from J.R. Holbrook & Sons, Grosvenor Road, Coventry, and is made by the Coventry Felt Co. The material is 72" V5 Rubberised felt. It should be clearly understood that the amount of material as recommended is the minimum possible. A much greater degree of silence will be obtained if all the body panelling including the rear boot, is lined with felt or Seapak material. This of course adds greatly to weight and cost and may be left to the discretion of the coachbuilders. Hs{Lord Ernest Hives - Chair}/F.{Mr Friese} Dodd. | ||