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).
Steering sensitivity, the effects of different oils, and potential improvements to the worm and nut steering box.
| Identifier | WestWitteringFiles\Q\2-July1927-September1927\ 25 | |
| Date | 19th July 1927 guessed | |
| contd :- -2- It is clear, however, that if road shocks were applied slowly our present steering would for all practical purposes be irreversible. That the steeringis more sensitive to any change for 'parking' than for 'joggling' we can demonstrate on the road by the use of different types of oil in the steering box. We can relatively easily spoil a steering in the forward direction, making it sticky and inclined to tighten up by using certain oils, but joggles seem to be but slightly reduced. Briefly, parking conditions prevent us ever producing a worm and nut which approaches irreversibility for joggles. We consider that the new large dia. .900 worm and nut with the altered steering box leverage is the best we can do, but that the friction in the column will still be necessary to give the best results. A full report on the figures we have been obtaining will follow when we have completed our series of tests. Hs{Lord Ernest Hives - Chair}/W. A.{Mr Adams} Robotham. | ||