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 27a\2\ Scan063 | |
| Date | 2nd May 1932 guessed | |
| X2677. X7460. 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 % pt. | | | | PETROL PUMP NORMAL | Engine R.P.M. | Pts/HR. | Inches of Mercury. | |---|---|---| | 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 | | ||