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).
Calculations for a petrol venturi meter, determining flow rates.
| Identifier | ExFiles\Box 37\2\ scan 143 | |
| Date | 2nd July 1919 guessed | |
| X. 3180 Head galls/min √Head Const- 4.05 .375 2.01 .1865 4.91 .410 2.22 .1846. 5.87 .457 2.42 .1890. 6.94 .487 2.63 .1850 7.96 .533 2.82 .1890. 5 / 9341 .1867. .187 √H.{Arthur M. Hanbury - Head Complaints} X.3180. Petrol Venturi Meter Av of last two Galls/min = .1865 √H Pints/hour = 89.5 √H.{Arthur M. Hanbury - Head Complaints} 40% addition found necessary by exps in test house No.12. makes Galls/min = .194 √H Pints/hour = 93.1 √H | ||