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).
Failure and testing of a Goshawk steering box and its supporting tube.
| Identifier | WestWitteringFiles\I\June1922\ Scan43 | |
| Date | 30th June 1932 | |
| To R from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Ds. c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL. Hs{Lord Ernest Hives - Chair}3/LG30.6.32. GOSHAWK - STEERING BOX. X4264 The only steering box which has failed on the Goshawk occurred on 5-G-11 after running approx: 9000 miles in France. 6-Goshawk-11 has recently returned after running 14,000 miles in France under similar conditions to 5-Goshawk-11. The steering box on there shows no signs of failure. Altogether the seven Goshawk cars have completed approx: 64,000 miles. We have run the front of a Goshawk chassis for 307 hours on the bump test. We are sending to you the tube which supports the steering box which failed after 275 hours running. This tube was in use when we had numerous failures of the original type front engine suspension, and also whilst it has been on the car there have been times when the engine suspension bolts have worked loose (we have had to be continually tightening these bolts up). As regards the fixing of this tube, we find on the bump test that we have to be continually tightening the biting-in-bolt on the bracket which fixes the tube to the crankcase or else tightening the bolts which hold the flange to the side member. We are sending you a further tube which has only run on the bump test for 324 hours with everything kept tight. You will see by this that considerable movement has taken place at the crankcase end. Further, we are sending another tube which we have taken off 6-G-11 which has just completed 14,000 miles running in France. This shows that considerable Contd. | ||