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 Autovac petrol delivery against engine RPM, comparing standard and 3/8' pipe sizes.
| Identifier | ExFiles\Box 69\4\ scan0335 | |
| Date | 13th June 1927 | |
| INDUCTION PIPE DEPRESSION (INS: MERCURY) 8.6 13.8 16.2 AUTOVAC PETROL FEED EFFECT OF SIZE OF PETROL PIPE ON AUTOVAC DELIVERY AUTOVAC PETROL DELIVERY (PTS/HR) 90 80 70 60 900 1000 1500 2000 2500 ENGINE R.P.M. STANDARD PIPE ---- 3/8" PIPE 1/4 THROTTLE 13.6.27 | ||