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 showing the mechanical efficiency of an E.A.C.V. steering box under increasing loads.
| Identifier | ExFiles\Box 67\3\ scan0179 | |
| Date | 21th July 1925 | |
| MECHANICAL EFFICIENCY OF E.A.C.V STEERING BOX WITH INCREASING LOADS IN SIDE STEERING TUBE. E.A.C. WITH WHITE METAL STEERING NUT. Y-Axis: MECHANICAL EFFICIENCY % X-Axis: LOAD IN SIDE STEERING TUBE lbs. Graph lines legends: 1) E.A.C.V SERIES WITH PENDULUM IN ITS MEAN POSITION 2) 40/50. 250° R.H. LOCK. 3) 40/50 H.P. WITH PENDULUM IN ITS MEAN POSITION. 4) 250° R.H. LOCK E.A.C.V SERIES. Stamp: ROLLS-ROYCE LIMITED. PRINT ROOM 21 JUL 1925 DERBY. Handwritten numbers: Y3465, H8430 | ||