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 reduction analysis comparing standard and lightened automotive components.
| Identifier | ExFiles\Box 88\3\ scan0154 | |
| Date | 5th April 1935 | |
| (3) Propeller Shaft. LOP. GB.702. Weight of Hardy Spicer Shaft 26.062 lbs. " " Standard Bentley Shaft, 29.062 lbs. to LOP. GB.702 Weight Reduction 3.000 lbs. ----------- Weight of Propeller Shaft Damper with flywheels lightened to HS.{Lord Ernest Hives - Chair}1807 - 9.062 lbs. Weight of Damper with standard flywheels G.56812/3 - 10.437 lbs. Weight reduction 1.375 lbs. ------------------------- Petrol Tank, LOP. FB.374 Weight of lightened tank complete with electrical unit, connections, top filter tube and cap etc. 37.375 lbs. Weight of Standard Bentley Tank 46.000 lbs. Weight Reduction 8.625 lbs. ----------- Exhaust Fittings, LOP. EB.1155, Hs.{Lord Ernest Hives - Chair}1585. Weight of lightened system including downtake pipe and front expansion box to Hs.{Lord Ernest Hives - Chair}1585, intermediate pipe, tail pipe and rear silencer produced in 16.S.W.G. 51.750 lbs. material. ------------------------- Cont. | ||