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).
Study showing the movement of a cantilever battery box support at various drum speeds.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan125 | |
| Date | 8th January 1931 guessed | |
| SHEET I CANTILEVER BATTERY BOX SUPPORT MOVEMENT OF EXTREMITY OF BATTERY BOX SUPPORT RELATIVE TO THE FRAME CROSS MEMBER AT THE REAR OF THE FRAME. THE ACTUAL MOVEMENT SHOWN IS CANTILEVER SUPPORT MOVEMENT X 5 THROUGH THE LEVERAGE OF THE INDICATOR. 2" CAMS USED ON THE DRUMS. STANDARD BUMP APPARATUS. DRUM SPEED 14.99 M.P.H. DRUM SPEED 18.45 M.P.H. DRUM SPEED 30 M.P.H. CRITICAL AXLE SPEED TRAMPING. DRUM SPEED 22.14 M.P.H. DRUM SPEED 25.83 M.P.H. | ||