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).
Blueprint graph of Bentley cam base circle contours for Unit B7.
| Identifier | ExFiles\Box 85\3\ scan0017 | |
| Date | 1st January 1940 guessed | |
| BENTLEY CAM BASE CIRCLE CONTOURS. UNIT B7 CAMS MADE TO LIFT CURVE LEC 3292. No.1 CYL. INLET. No. 2 CYL. INLET. No. 1 CYL. EXHAUST. No. 2 CYL. EXHAUST. VALVE LIFT - INCHES CRANKSHAFT ANGLE - DEGREES. T.D.C. SHEET 6 Faint stamp: M/LEC 3292 | ||