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).
Test results for steering column movement under various chassis conditions on a bumping rig.
| Identifier | ExFiles\Box 14\4\ Scan048 | |
| Date | 16th April 1928 guessed | |
| COLUMN MOVEMENT TESTS. BUMPING RIG - MOVEMENT MEASURED AT COLUMN THRUST RACE. 2" CAMS. 108 R.P.M. BUMPING FRONT WHEELS. CONDITION OF CHASSIS. No front axle dampers fitted. (1) Complete dash and column support as shewn in sketch. As (1) (2) Steering wheel removed. As (2) (3) Side 'B' of triangular column support removed. As (1) (4) But dashboard supports 'A' removed. As (4), but with radiator tie rod disconnected. COLUMN MOVEMENT. Bumper running. Vertical. Horizontal. .200" .460" .150" .450" .140" .400" .320" .400" .230" .400" Static test horizontal. .230 .060 Movement measured here. Triangular column support in standard position. | ||