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).
Modification to a Bentley rear expansion box to achieve silence with a fishtail under the rear axle.
| Identifier | ExFiles\Box 3\4\ 04-page410 | |
| Date | 1st July 1931 | |
| H.S. 1073 MODIFICATION TO BENTLEY REAR EXPANSION BOX TO GET SILENCE WITH FISHTAIL UNDER THE REAR AXLE. .750 A DISTANCES A ALL 1.500" BOX OTHERWISE TO L.E.C. 3521. PIPE DIA AS ON THIS DRAWING. ROLLS-ROYCE LTD. PRINT ROOM JUL '31 DERBY | ||