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 Bentley cam toe profiles, comparing valve lift and velocity for standard and suggested designs.
| Identifier | ExFiles\Box 102\5\ scan0161 | |
| Date | 14th October 1938 | |
| BENTLEY CAM TOES. VALVE LIFT - INCHES 0.020 0.015 0.010 0.005 0 CRANKSHAFT DEGREES. 0 5 10 15 20 25 30 35 40 VALVE VELOCITY - INCHES PER CRANKSHAFT DEGREE. 0.01 0.0008 0.0006 0.0004 0.0002 0 SUGGESTED OPENING TOE VELOCITY OF OPENING TOE VELOCITY OF STANDARD TOE STANDARD TOE LEC 3292 VELOCITY OF CLOSING TOE SUGGESTED CLOSING TOE SHEET FTR 14.10.38 | ||