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 showing the effect of petrol pipe size on Autovac petrol delivery at half throttle, plotted against engine RPM.
| Identifier | ExFiles\Box 69\4\ scan0336 | |
| Date | 13th June 1927 | |
| INDUCTION PIPE DEPRESSION (INS MERCURY) 5.5 10.1 12.8 14.4 AUTOVAC PETROL DELIVERY (PTS/HR) 90 80 70 60 50 AUTOVAC PETROL FEED. EFFECT OF SIZE OF PETROL PIPE ON AUTOVAC DELIVERY. STANDARD PIPE ------ 3/8" PIPE. HALF THROTTLE ENGINE R.P.M. 500 1000 1500 2000 2500 13.6.27 | ||