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).
Illustration showing an air lock in a fuel tank affecting the fuel capacity reading.
| Identifier | ExFiles\Box 61\3\ scan0215 | |
| Date | 15th July 1931 guessed | |
| This Portion Air Locked. 18 3/4 Gallons. 20 Gallons Overflow of Vent. ILLUSTRATION SHOWING REASON FOR INCREASED HEIGHT OF TOP GALLON ON DIAL. | ||