Drawings for new ribbed brake drums and the proposed use of manganese steel.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan119 | |
| Date | 1st December 1930 | |
| FROM DA. {Bernard Day - Chassis Design} C. to HS. {Lord Ernest Hives - Chair} ORIGINAL BRAKE DRUMS. DA {Bernard Day - Chassis Design} 1/W1.12.30. x4612. We sent you on Saturday the 29th. ult., drawings of N. schemes 3176/7., shewing the new ribbed brake drums turned out of tube or tubular forgings. It is intended to try manganese steel unless something still more suitable is known. DA. {Bernard Day - Chassis Design} [Stamp: RECEIVED DEC 1930 H.S.] | ||
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).