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 68\2\ scan0046 | |
| Date | 17th October 1939 guessed | |
| COLUMN MOVEMENT TESTS. BUMPING RIG - MOVEMENT MEASURED AT COLUMN THRUST RACE. 2" CAMS. 108 R.P.M. BUMPING FRONT WHEELS. CONDITION OF CHASSIS. COLUMN MOVEMENT. Bumper running. Vertical. Horizontal. Static test horizontal. (1) No front axle dampers fitted. Complete dash and column support as shewn in sketch. .200" .460" (2) As (1) Steering wheel removed. .150" .450" .230 (3) As (2) Side 'B' of triangular column support removed. .140" .400" .060 (4) As (1) but dashboard supports 'A' removed. .320" .400" As (4) But radiator tie rods disconnected. .230" .400" Movement measured here. Triangular column support in standard position. | ||