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).
Optimal pivot distance for a new front axle design to improve steering and reduce weight.
| Identifier | WestWitteringFiles\N\2July1925-September1925\ Scan73 | |
| Date | 9th September 1925 | |
| R.R. 235A (100 T) (S.H. 159, 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2600 ORIGINAL TO HS.{Lord Ernest Hives - Chair} FROM DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}1/M4.9.25. FRONT AXLE. X5420 Y4214 A matter of great importance to us in the design of the new front axle of reduced weight etc, is the distance we can have between the point of contact of the wheel and the pivot on the ground before front braking begins to interfere with the steering. We remember that M.{Mr Moon / Mr Moore} Perrot said this could be about .750 and we believe that on the Hispano it is .750. It is possible it could be more than this, say up to 1". Any increase of this distance is a great assistance in making the pieces simple and light, and if you have any information you can give us it would be very useful. DA.{Bernard Day - Chassis Design} | ||