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 and table showing performance curves with different engine timing settings for a 64lbs compression engine.
| Identifier | ExFiles\Box 33\4\ Scan061 | |
| Date | 5th July 1910 | |
| Title: Timing curves 64lbs compression Engine 5.7.10 Table of Settings: | | YO | YC | EO | EC | Notes | |---|---|---|---|---|---| | A | 3 1/8 | 8 2/3 | 21 2/3 | +1 1/4 | as set. (Driving members) | | B | 1 1/4 | 7 1/2 | 19 | -5/6 | Todd's reading | | C | 1 1/4 | 7 1/2 | 19 | -2 1/4? | same | | D | 3 1/8 | 9 1/3 | 22 1/3 | -2/3 | cut relief side | | E | 3 3/4 | 7 1/2 | 21 | +1 1/2 | Inlet side | Annotations: Top right: Glaser No 134 returned to house 1/7/10 Right side (red): Cam shaft Dwg no. E4885 Signature (red): RP 6/7/10 Bottom right (red): all others old Graph Axes: Y-Axis (HP): 15HP, 20HP, 25HP, 30HP, 35HP, 40HP, 45HP X-Axis (Revs): E, 12HP 500R, 500, 750R, 1000R, 1250R, 1500 Revs, 1750 Revs Graph Curves labeled A, B, C, D, E correspond to the table. | ||