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).
'EAC' steering, detailing the force required to make turns at speed compared to other models.
| Identifier | ExFiles\Box 22\1\ Scan236 | |
| Date | 1st April 1925 | |
| R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF Hsl/LGB.4.25. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. BJ. c. to RG.{Mr Rowledge} EV.{Ivan Evernden - coachwork} c. to DA.{Bernard Day - Chassis Design} E.{Mr Elliott - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} EY. S E C R E T. 'EAC' STEERING. Handwritten notes: 4214 X4214 X3470 We have delayed sending any reports on experiments in connection with the EAC. steering because our reports do not appear reasonable as we have suggested there is very little difference in the efficiency of the steering gears and no difference in the amount of force required to turn the wheels, and yet there is considerable difference in the effort required to steer the car. We have carried out the following tests to endeavour to prove whether the extra resistance comes from increased effort to turn the front wheels. We have made a device which can be fitted into the side steering tube to read by means of spring deflection the amount of effort required to turn the road wheels when the car is being driven along the road. We have found that we have been able to obtain very consistent results with it. Force required in side steering tube to make a right angle turn at 15 to 20 m.p.h. | | Old type 40/50 lbs. | EAC. 'V' series lbs. | Hispano. lbs. | |---|---|---|---| | R.H. turn | 225 | 235 | 225 | | L.H. turn | 330 | 350 | 346 | contd :- | ||