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).
Required gearbox modifications for specific B.V. series cars.
| Identifier | ExFiles\Box 99\4\ scan0288 | |
| Date | 21th June 1939 | |
| 428 To HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}1/MH.{M. Huckerby}21.6.39. B.V. GEARBOXES. Corniche Car 14.B.V. Before this leaves for France it must have gear-box No.7 (now in 12.B.V.) with the following modifications - (1) Stiffened top and overdrive cones lightened as per box 10.B.V. (2) Steel cages for side shaft bearings. 12.B.V. Fit box No.4 without any modifications when 14.B's box is changed. 11.B.V. Box No.8, remove anti-rattle device from Top and Overdrive, fitting new stiffened lightened cones. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||