Modification to the Wraith TT Gearbox's central diaphragm to improve oil flow.
| Identifier | ExFiles\Box 8\11\ 11-page054 | |
| Date | 19th January 1937 | |
| SECRET. GRY {Shadwell Grylls} toly 628 BY. {R.W. Bailey - Chief Engineer} C. E. {Mr Elliott - Chief Engineer} Da. {Bernard Day - Chassis Design} Rm. {William Robotham - Chief Engineer} HPS. {Horace Percy Smith - Experimental Factory Mgr} E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} 3/HP.19.1.37. Wraith TT Gearbox. We send herewith N.Sch.5007 showing a modification to the central diaphragm of this box to improve the oil flow between the front and rear compartments. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} | ||
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).