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).
Instruction to fit a special zinc and aluminium white metal alloy to crankcase bearings and connecting rods for a 10,000-mile test run.
| Identifier | ExFiles\Box 154a\1\ scan0185 | |
| Date | 27th December 1929 | |
| E.{Mr Elliott - Chief Engineer} Dept. c. Hs.{Lord Ernest Hives - Chair} e.{Mr Elliott - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} -CHL- CRANKCASE AND BEARINGS. --------------------- Will you kindly instruct the Experimental Department and issue the necessary drawings for them to fit a special white metal alloy composed of zinc and aluminium RR alloy in place of the white metal for both main bearings and connecting rods (big ends). The material will not be run into steel shells, but the bearings will consist of new material throughout. Both the 20 HP. and 40/50 HP. which are being got ready for the next 10,000 mile test-run in France should be fitted up as above, and in addition must have nitralloy crankshafts fitted. FR BY.{R.W. Bailey - Chief Engineer} | ||