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).
With two graphs showing carburettor mixture control adjustments under different conditions.
| Identifier | ExFiles\Box 178\1\ img066 | |
| Date | 26th November 1925 | |
| - 5 - EXPERIMENTAL REPORT. EXPL. No. REF. Hs{Lord Ernest Hives - Chair}/ACL/LG261125. First Graph: POSITION OF CONTROL REQUIRED TO GIVE CORRECT MIXTURE WHEN JET SET TOO EARLY. Y-Axis: POSITION OF MIXTURE CONTROL, NOTCHES WEAK, NOTCHES RICH X-Axis: R.P.M. Annotations: AIR VALVE STARTS TO LIFT, AIR PORTS OPEN, RANGE OF MIX. CONTROL. The following diagram shows what results should be obtained if the carburetter is made and adjusted correctly:- Second Graph: CURVE SHOWING POSITION OF MIXTURE CONTROL TO GIVE CORRECT MIXTURE Y-Axis: POSN. OF MIX. CONTROL, NOTCHES WEAK, NOTCHES RICH X-Axis: R.P.M. Annotations: LIGHT LOADS, FULL LOAD. | ||