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).
Graph from crankcase depression tests, plotting depression in inches of water against speed in M.P.H.
| Identifier | ExFiles\Box 103\4\ scan0195 | |
| Date | 23th February 1937 | |
| DEPRESSION INCHES OF WATER M.P.H. VENTURI FILLER PIPE CRANKCASE CRANKCASE DEPRESSION TESTS 23-2-37 | ||