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 analysing the acceleration curves and required brake horsepower for a 45 HP Renault.
| Identifier | ExFiles\Box 23\4\ Scan059 | |
| Date | 3rd February 1925 | |
| ANALYSIS OF CURVES OF ACCELERATION OF 45 H.P. RENAULT GIVEN IN 'THE MOTOR' 3/2/25 Y-AXIS: CLUTCH BRAKE HORSE POWER X-AXIS: ENGINE R.P.M. DATA POINTS (VERTICAL LINES): 10 M.P.H 20 M.P.H 30 M.P.H 40 M.P.H 50 M.P.H 60 M.P.H 70 M.P.H 80 M.P.H CURVE LABELS & ANNOTATIONS: Top Curve (B): RESULTANT B.H.P NECESSARY TO PRODUCE THESE RESULTS. (CURVE A + CURVE C) NOTE CONVEXITY! Middle Curve (A): BRAKE H.P. REQUIRED TO PRODUCE ACCELERATION CURVE GIVEN BY 'THE MOTOR' Bottom Curve: BRAKE HP REQUIRED TO DRIVE THE CAR AT THE ROAD SPEEDS IN QUESTION Center Annotation: MAKERS CLAIMED MAXIMUM HP Right Side Annotations: MAKERS H.P., TRACTIVE RESISTANCE CONSIDERED NORMAL, RESULTING MAX. SPEED Bottom Annotation: TYRE SIZE 895 x 135 | ||