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 plotting the effect of petrol supply pipe size on Autovac delivery against engine RPM.
| Identifier | ExFiles\Box 69\4\ scan0334 | |
| Date | 13th June 1927 | |
| INDUCTION PIPE DEPRESSION (INS HG) 1.25" 2.05 2.9 3.8 AUTOVAC PETROL FEED EFFECT OF SIZE OF PETROL SUPPLY PIPE ON AUTOVAC DELIVERY. FULL THROTTLE AUTOVAC PETROL DELIVERY PTS/HR ENGINE DEMAND STANDARD PIPE ------ 3/8" PIPE_____ ENGINE R.P.M | ||