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).
Confirming instructions for experiments on gearbox cones.
| Identifier | ExFiles\Box 98\4\ scan0105 | |
| Date | 12th June 1939 | |
| Hood 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}1/MH.{M. Huckerby}12.6.39. 9.B. This is to confirm for record purposes that we have asked you to do the following experiments on 9.B. during the last few days. (1) Remove the second speed cone from gearbox No. 1.B.5. (2) Remove also the top and overdrive cones. (3) Replace the cones after machining the rims down 1/10th. thick, leaving, however, the rim .150 wide at the inside end. a.i.b. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||