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).
The cross steering tube fouling the front hydraulic dampers and a proposed solution to modify the tube's bend.
| Identifier | ExFiles\Box 55\4\ Scan357 | |
| Date | 2nd April 1929 | |
| To DA.{Bernard Day - Chassis Design} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to BY.{R.W. Bailey - Chief Engineer} X235 Hs{Lord Ernest Hives - Chair}/Rml/LG12.4.29. CROSS STEERING TUBE. +7425 G.W.Hancock has reported that the cross steering tube is fouling the bottom of the front hydraulic dampers. The foul obviously takes place when the brakes are applied and the axle is approaching the maximum bump position. We have pulled an axle down to the maximum bump position and find that there is clearance between the cross steering tube and dampers, but very little. This clearance is slightly less than it was on 18-EX because the larger balls have raised the cross steering tube. When the brakes are applied, the rear end of the front spring is put in compression, buckles and allows the axle to come back slightly, the result being that the small clearance is taken up and the foul occurs. We think that if the present bend in the cross steering tube started at the ends and was carried in one sweep across the tube, that the trouble would be overcome. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||