The failure of aluminium exhaust boxes and suggesting a switch to cast iron or other stronger alloys.
| Identifier | WestWitteringFiles\U\2January1930-September1930\ Scan244 | |
| Date | 20th August 1930 | |
| HS. {Lord Ernest Hives - Chair} ) FROM R. {Sir Henry Royce} BY. {R.W. Bailey - Chief Engineer} ) [crossed out] C. to - SG {Arthur F. Sidgreaves - MD} [crossed out] C. to - WOR. {Arthur Wormald - General Works Manager} [crossed out] C. to - DA. {Bernard Day - Chassis Design} [crossed out] [Stamp: ORIGINAL RECEIVED 22 AUG 1930] P. 2. EXHAUST SYSTEM. & As the aluminium exhaust boxes have failed and yet are of a pattern which is desirable I suggest we try these in cast iron, but if it is thought they will not be strong enough in some respects they may be modified or made in some iron casting stronger or tougher than the usual iron casting. I suggest cast iron with nickel, semi steel, malleable, might be examined as alternatives. The extra weight, though undesirable, may not be prohibitive. It is assumed that aluminium is hopeless as the temperature even for T.50. alloy is too high for the strength to be maintained, according to reports. R. {Sir Henry Royce} V7230 | ||
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).