Diagrams and calculations for the EAC-1 steering system, including centre point steering and pivot backward lean.
| Identifier | ExFiles\Box 160\2\ scan0032 | |
| Date | 8th January 1924 | |
| X4578 DETAILS OF EAC-1 STEERING. X3441 X9940 X4578 Effective tyre dia. to give true centre point steering = 35.7". Actual effective tyre dia. in practice taken as 33". Deviation in centre point due to this = .228". Torque tending to deflect the steering when one wheel locked on a road, - load on front axle 22 cwts., co-effic- ient of friction .6" = (740 X .228)/12 lbs.ft. = 14.1 lbs.ft. PIVOT BACKWARD LEAN = 1° to VERTICAL or 3/16" on Standar Springs IN PIVOT LENGTH Diagram annotations: 3.147, 1/2°, .228", 10° | ||
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).