List of requested changes for the P.3. Gearbox 14.HS. for the 39-EX model.
| Identifier | ExFiles\Box 94\2\ scan0166 | |
| Date | 26th January 1937 | |
| 328 To HPS. {Horace Percy Smith - Experimental Factory Mgr} from Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} 17/AP.26.1.37. P.3. GEARBOX 14.HS. {Lord Ernest Hives - Chair} for 39-EX. Will you please incorporate in this box:- (1) Rolls-Royce gears with soft splines. (2) 9° screw threaded top and 3rd. gear cones. (3) 8° screw threaded 2nd. gear cones with actuation to N.Sch.4949. (4) Side shaft G.85124. (5) Bearings to Ex.25331 and Ex.25846. This affects the C/M. gears. (6) "Concertina" coupling. (7) N.Sch.4824. --------- Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} | ||
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).