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).
Horsepower and consumption test data for a 12-cylinder Packard engine using a 50% Benzol fuel mix.
| Identifier | ExFiles\Box 127\1\ scan0101 | |
| Date | 25th June 1920 | |
| (filed 25.6.20) File 70.PC/ 12-CYLINDER - PACKARD. X.435 HP. Consumption Tests. 50% Benzol. R.P.M. | HP. | Pts. per hr. | Pts. per HP.Hr. 500 | 21.2 | 18 | .85 750 | 31.8 | 25 | .78 1000 | 41.6 | 31 | .74 1250 | 52 | 40 | .77 1500 | 57.5 | 46 | .8 1750 | 67 | 51 | .76 2000 | 71.6 | 55 | .76 2250 | 75 | 57 | .76 [Text printed vertically on the right edge]: R.R. 55B b (50 M) (S.F. 846. 6-8-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2461. [Stamp]: EFC JUN RECEIVED. | ||