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).
Log of fuel gauge readings at different mileage intervals after removing specific amounts of fuel.
| Identifier | ExFiles\Box 44\3\ Scan128 | |
| Date | 19th November 1928 | |
| Take 1 1/4 gallons out of tank. Level say 11.5 Miles. Time. Gauge reading. 0 11.20 0 10 11.50 10.5 20 12.15 10.5 30 Not taken. 10.75 40 " " 11.00 Take 3 gallons out of tank. Level say 8.5 Miles. Time. Gauge reading. 0 2.30 0 10 2.55 7.75 20 3.15 8.00 30 3.40 8.00 Take 3 1/4 gallons out of tank. Level say 5.25 Miles. Time. Gauge reading. 0 Not taken. 0 16 " " 4.75 16. Stood over-night - reading in morning = 3.75 19/11/28. 20 Not taken. 4.75 30 " " 5.00 40 " " 5.00 | ||