Lowering of the chassis frame using smaller back axle bevel gears and hypoid gears.
| Identifier | ExFiles\Box 67\1\ scan0195 | |
| Date | 6th May 1927 | |
| To DA. {Bernard Day - Chassis Design} from R. {Sir Henry Royce} c. to BJ. Hs. {Lord Ernest Hives - Chair} BY. {R.W. Bailey - Chief Engineer} 48380 R3/M6.5.27. LOWERING OF CHASSIS FRAME. X. 8380 X. 5380 X. 7380 X. 2066 It is quite evident that we must on any future chassis get the frame lower. To do this it is necessary to use a smaller dia. of back axle bevel gear, as at present adopted on the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)), and EAC.7., and with these a hypoid gear of approx. 1" out of centre for the 20 HP., and 1 1/4" out of centre for the 40/50. Will you endeavour to get gears of this description of the most useful ratios. In EAC.9. this has been done. We should treat the 20 HP. the same. R. {Sir Henry Royce} | ||
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).