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).
Graph of braking curves showing road speed versus time to rest for a 40/50 R.R. open touring car.
| Identifier | ExFiles\Box 73\3\ scan0285 | |
| Date | 19th March 1925 | |
| BRAKING CURVES. 40/50 R.R. ROAD SPEED M.P.H. TIME TO REST. SECONDS. A B REAR BRAKES ONLY COEFFICIENT OF FRICTION. BETWEEN TYRE SURFACE & ROAD .7. A.{Mr Adams} VALUES FOR A CAR IN WHICH ALL FOUR WHEELS CAN BE LOCKED. B. VALUES FOR A CAR WITH THE REAR WHEELS LOCKED FRONT TO REAR RATIO 40 TO 60. ALL FIGURES FOR OPEN TOURING CAR. WEIGHT FRONT 1.05 TONS REAR 1.10. STAMP: ROLLS-ROYCE, LIMITED PRINT ROOM. 19 MAR. 25 DERBY | ||