Production position and comments on replacing big end bearings with die-cast bushes, detailing cost savings and implementation.
| Identifier | ExFiles\Box 171\5\ img039 | |
| Date | 16th September 1938 | |
| DOCUMENT HEADER Top Left References: S.S/C.38, 9.S.J, S.S/A.P.S.24 Top Right Reference & Date: S.S/A.P.S.24/16.9.38 TITLE PHANTOM III STANDARDISATION OF PARTS BIG END BEARING BUSH (A.C.9. DIE CAST) MAIN TEXT Production position & comments. Big end bearing bush (A.C.9. die cast) replacing A.C.6. bearings provides a saving of 2/1d. per chassis and involves a die Cost of £10.0.0d. Existing bushes will be absorbed at 171st. chassis in 'D' series and it is therefore proposed to introduce A.C.9. bushes at this point. Die cost of £10.0.0d. will be recovered after producing 100 chassis i.e. at the 71st. chassis in 'E' series. There will also be a reduction of indirect charges because casting scrap will be reduced when using A.C.9. material. APPROVAL SECTION Routing List: M, H(22), C(21), A Signature: 2/2 Date: 13/9/38 Authorisation for Process: [illegible] | ||
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).