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 increase of Hispano steering leverage relative to the E.A.C. V series.
| Identifier | WestWitteringFiles\M\2April1925-June1925\ Scan0 | |
| Date | 10th April 1925 | |
| HISPANO STEERING. INCREASE OF LEVERAGE REL. TO E.A.C. V PERCENTAGE INCREASE OF HISPANO LEVERAGE RELATIVE TO E.A.C. V SERIES 60 50 40 30 20 10 0 L.H. LOCK. 300° 200° 100° 0 100° 200° 300° R.H. LOCK. ROTATION OF STEERING WHEEL. ROLLS-ROYCE LTD PHOTO-STAT PRINT ROOM 10-APR. 1925 DERBY. | ||