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).
The fitting and load characteristics of wires and Bensport circlips for various engines, including the 20/25, Peregrine, and Phantom II.
| Identifier | ExFiles\Box 86\2\ scan0025 | |
| Date | 28th March 1933 | |
| - 2 - E.2/HP.28.3.33. -------------------------------- of carrying. In putting these wires in position we think that one end is always inserted first in the groove and the remainder of the ring is gradually fed in. On this assumption the temporary increase of load during assembly brings the total load up to about 14 lbs, but as we have found the load has to exceed 16 lbs. to cause any permanent set the figure to which we have put up the Bensport circlip seems quite permissible, and as pointed out in the previous paragraph the wire is of such a temper that it will automatically take care of itself. We shall hear in due course the result of running with increased set on the Bensport, and we see no reason why the same circlip should not be used on the 20/25. With regard to the other engines using this device, we are sending some modification through for Peregrine as we believe on this engine a reduction in the gauge of the wire itself is desirable. We are also looking into the same question on Phantom 2 to see if any alteration is desirable. E.{Mr Elliott - Chief Engineer} | ||