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).
Weight and system comparison of components for Bentley, S.S., and Oldsmobile vehicles.
| Identifier | ExFiles\Box 126\1\ scan0098 | |
| Date | 15th June 1938 | |
| -2- 15th. June 1938. Brakes, complete with front hubs. Bentley 215 lbs. 0 1/2 ozs. S.S. 183 lbs. 4 ozs. Olds. 133 lbs. 2 ozs. The Bentley system includes the mechanical servo driven from the gearbox. The S.S. is the Girling system, the Oldsmobile has hydraulic brakes. Olds. drums much smaller and more flimsy (9 lbs. against 20 for S.S.) Exhaust System. Bentley 53 lbs. 15 ozs. S.S. 64 lbs. 5 1/4 ozs. Olds. 19 lbs. 8 ozs. Duplex system used on S.S. Bentley employs three expansion or silencer boxes. The light weight of the Olds. system can be accounted for by the use of thinner gauge material, and only one small silencer box. Brake Drums. Bentley F.{Mr Friese} 12lbs. 6ozs. S.S. F.{Mr Friese} 20lbs. 12ozs. Olds. F.{Mr Friese} 9lbs. 0 ozs. R.{Sir Henry Royce} 16lbs. 4ozs. R.{Sir Henry Royce} 20lbs. 12ozs. R.{Sir Henry Royce} 9lbs. 4 ozs. Increased weight in drum dimensions and cooling ribs, for British braking standard on the Bentley and S.S. Weight one Rear Spring. Bentley 40 lbs. 6 ozs. S.S. 27 lbs. 12 ozs. Olds. 35 lbs. 0 ozs. Chassis Electrical. Bentley 161 lbs. S.S. 138 lbs. 14 ozs. Olds. 90.66 lbs. Major difference - Battery. Bentley 66 Olds. 39. Wheels and Tyres. Bentley 214 lbs. S.S. 206 lbs. 4 ozs. Olds. 186 lbs. | ||