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).
Summary of a telephone conversation regarding Phantom II balance weights, 20/25 HP exhaust pipe failures, and Phantom II frame fittings.
| Identifier | ExFiles\Box 14\2\ Scan137 | |
| Date | 22th October 1931 | |
| E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} BY/Cgh.{W Clough} BY/SS.{S. Smith} X7010 X7010. X5230. X7380. BY.2/G.22.10.31. TELEPHONE CONVERSATION WITH WW. 21.10.31. ------------------------------------------- PHANTOM II. BALANCE WEIGHTS. --------------------------- E.{Mr Elliott - Chief Engineer} remarked over the 'phone that he intended getting out a scheme of balance weights suitable for the present Phantom II, to be used for existing forgings. We pointed out that this matter was already in hand at Derby, as the result of Hs.{Lord Ernest Hives - Chair} passing the information along to us some time ago, and this satisfied E.{Mr Elliott - Chief Engineer} 20/25 HP. EXHAUST PIPE FAILURES. --------------------------------- WW. had a difficulty in understanding just what had been done on the 10,000 miles to overcome the failure. We were able to explain what the proposed improved scheme of anchorage involved, and we think we made it clear that an advantage did accrue in anchoring the pipe at the bottom of the vertical straight, approximately on a level with the top of the frame instead of anchoring low down on the curve, as by so doing a kind of compensating action occurred which did not put the same stress on the pipe. E.{Mr Elliott - Chief Engineer} remarked that R.{Sir Henry Royce} had schemed out a new method of dealing with the 20/25 HP. type of pipe, and the design would be coming along in the course of a day or so. PHANTOM II. FRAMES & FITTINGS. -------------------------------- E.{Mr Elliott - Chief Engineer} informed me that R.{Sir Henry Royce} required a further trial of the cross in the frame now that we were using an improved method of damping to prevent the side members getting into a state of high oscillation. The object of the test is to make quite certain that the deeper frame is necessary, as R.{Sir Henry Royce} is reluctant to adopt the deeper frame unless it is quite certain that it is the only remedy for the troubles it was introduced to overcome. | ||