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).
Drawing for a 2nd speed gear, noting corrections and potential housing improvements.
| Identifier | ExFiles\Box 99\4\ scan0227 | |
| Date | 29th June 1939 | |
| BY/NS{Norman Scott} c. Rm.{William Robotham - Chief Engineer} 428 DA.{Bernard Day - Chassis Design}1/G.29.6.39. B.V. ETC. GEAR BOX. Please receive PD.469 shewing 2nd. Speed Gear with standard ratios and .030 correction, Except for the correction particulars are as given on PD.82. In addition to strengthening the teeth, in any case the correction gives a thicker housing for the Timken bearings with standard ratios, should these be adopted. On PD.468 the housing appears rather thin. Please detail and instruct. DA.{Bernard Day - Chassis Design} | ||