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).
Drawing of a modified carburetter throttle for a PII model.
| Identifier | ExFiles\Box 13\3\ 03-page293 | |
| Date | 15th January 1931 | |
| V1019, SEE DRAWING FOR CLEARANCE, 1.599 DIA, -1, 23¼°, ±¼°, 90°, .125, RAD, 2 SLOTS, .225, +.010, 1.000 CRS, ±.001, THESE FACES CLEANED TO A MINIMUM THICKNESS OF .125 IF NECESSARY, SCALE 1/1, TO HAVE A SMOOTH FINISH ALL OVER, CARBURETTER THROTTLE (MODIFIED) PII, DURALUMIN, 2 OFF, C.M.C., 15.1.31 | ||