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).
Cause and solution for a steering 'joggling' issue on the Goshawk II model.
| Identifier | ExFiles\Box 49\4\ Scan137 | |
| Date | 7th April 1922 | |
| Y4263 Ds. from EP.{G. Eric Platford - Chief Quality Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to BY.{R.W. Bailey - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} c. to Hy.{Tom Haldenby - Plant Engineer} EP{G. Eric Platford - Chief Quality Engineer}1/LG7.4.22. GOSHAWK II. STEERING. X4263 With reference to yours De4/HS.{Lord Ernest Hives - Chair}4.22 in which you suggest the reason for the "joggling" of the steering is due to the gyroscopic action, and that the effect is worse on the Goshawk than on the 40/50, because the wheels are approximately the same in diameter and only slightly less in weight, but the weight of the car on the pivots is much less and therefore the friction resistance is less. There are one or two points which you should be aware of as follows:- 1. The joggle appears to be the same whether wire or disc wheels are used. 2. Even on the early Goshawk-ll cars the joggling was prevalent. This was especially bad on 2-Goshawk-ll car which caused, at the time, some concern. We certainly felt, however, that no opinion could be definitely expressed on this point until the stronger front axle and parts had been fixed. 3. We have been definitely able to prove that adding friction to the front steering pivots has eliminated the trouble and H.{Arthur M. Hanbury - Head Complaints} has instructed that 6-Goshawk-ll which is now about to be delivered to France, should be fixed up with plain thrust bearing in the steering column buffer springs at each end of the longitudinal connecting tube. This we are now doing and arranging for the car to cross over to France on Monday the 10th.inst. EP.{G. Eric Platford - Chief Quality Engineer} | ||