Graph showing the results of gearbox control tests on a 20/25 HP oil pump.
| Identifier | ExFiles\Box 104\4\ scan0190 | |
| Date | 3rd April 1933 | |
| GEARBOX CONTROL TESTS TO MEMO HDY {William Hardy} 3/M 27-3-33 TESTS TAKEN WITH 20/25 HP. OIL PUMP - .003" RADIAL - .004" END CLEARANCE CASTROL XL 70°C PUMP INLET TEMPERATURE DELIVERY PTS/HR. DELIVERY PRESS 0 LB/□" 100 " 200 " 300 " PUMP SPEED R.P.M. | ||
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).