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).
Test results for a 25EX A.C. Petrol Pump comparing performance with the filter cavity filled in versus normal operation.
| Identifier | ExFiles\Box 17\5\ Scan125 | |
| Date | 2nd May 1932 guessed | |
| x7460. x2677 25EX A.C. Petrol Pump. Filter cavity filled in. Engine ran dry. One gallon and on reserve. 1 min 33 secs engine running on starter motor. 3 gallons in rear tank. Engine R.P.M Pts/HR. Inches of Mercury. Less 1.1" 300 104 4.0 400 74 4.0 500 72 4.1 1000 88 5.4 1500 104 6.2 2000 2500 3000 124 7.8 100 1/2 pt. PETROL PUMP NORMAL 300 91 4.0 400 76.5 4.1 500 76.5 4.1 1000 95 4.4 1500 107 5.5 2000 113 6.1 2500 122 7.0 3000 125 7.3 | ||