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).
Recurring failures and distortion issues with exhaust pipes on the Phantom model during testing.
| Identifier | WestWitteringFiles\O\2January1926-March1926\ Scan23 | |
| Date | 27th November 1926 | |
| Expl: Report. To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} c. to CJ. BJ. c. to E.{Mr Elliott - Chief Engineer} RG.{Mr Rowledge} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} Expl: No. Ref. Hs{Lord Ernest Hives - Chair}/GWH{George W. Hancock - Head Chateauroux}/1.G.271126 RE. EXHAUST PIPES ON PHANTOM. X8320 X8940a We have never yet been able to complete 10,000 miles without having failures with exhaust pipes. We have reported our trouble with the front exhaust pipe during our test in France on 8-EX and herewith show sketch of what we presume happens. In the first instance the exhaust pipe distorted to such an extent that the bottom pipe came out of the sliding joint. We show in the sketch by dotted lines the shape of the pipe after the distortion. We straightened this out and made the joint O.K., but after a thousand miles run, distortion had again taken place with the same results. We then turned a flange over at the end of the pipe in sliding joint allowing for half an inch of distortion. The sliding joint, although left free, did not function and after a further thousand miles approx., the top exhaust box had cracked half way round underneath. We had two boxes crack exactly similar on 93-MK.{R. E. B. Meade-King} during its test in France. We show in the sketch by dotted lines what we presume takes place, i.e., The exhaust pipe being held at the sliding joint brings the distortion stress to bear on the top exhaust box and the direction of the stress is such that the box tries to swivel round, its axis being the induction pipe. It is located to its position by the two dowel pins. contd :- | ||