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).
Questionnaire page about gear ratios and rear axle design, including torque tube vs. Hotchkiss drive.
| Identifier | ExFiles\Box 65a\3\ scan0347 | |
| Date | 12th September 1927 guessed | |
| -4- (3) Suitability of Gear Ratios. (4) Accessibility of Oil Drain, Filler and Level Indicator. (5) Any other points, with regard to ease of manufacture, maintenance, repairs, oil leaks etc. REAR AXLE. (1) Noise. (2) Accessibility of Oil Drain and Filler. (3) Any other points, oil leaks etc. (4) What are your views with regard to a torque tube controlled rear axle as against the present Hotchkiss drive? The torque tube control claims are :- definite control when braking, reduces the effect of brakes being pulled on or off when the axle twists, deletes mechanics joints, and enables the propeller shaft to be automatically (or centrally) lubricated. Quote examples of other makes of which you have experience. | ||