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).
Modifications for a gearbox intended for a French test.
| Identifier | ExFiles\Box 112\2\ scan0069 | |
| Date | 9th August 1938 | |
| 828? To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. By.{R.W. Bailey - Chief Engineer} c. Da.{Bernard Day - Chassis Design} c. Hdy.{William Hardy} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}7/MH.{M. Huckerby}9.8.38. GEAR BOX FOR 8.B.V. FOR FRENCH TEST. B50 gearbox It has become necessary to make some modifications to our Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}7/MH.{M. Huckerby}21.7.38. These are:- (1) Small synchro cones of 8° angle for top and overdrive to FD.{Frank Dodd - Bodies}239. (2) 9° second speed cone of the present type. (3) We do not require the aluminium bronze reverse fork. (4) Reverse gear should run on the original plain parallel small diameter shaft made in S/ZNCR. The bronze bushes in the gear should be white metalled and run at 3 1/2 thou clearance. For reverse only the strongest variety of selector springs should be used. (5) The new casting which has not yet been used should be built up for this car. (6) Certain new gears are necessitated by Item (1) of this memo, and we should therefore like all gears in the box to have the works' blessing as regards silence. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||