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 comparison of components for a Marine Engine and a Standard Engine.
| Identifier | ExFiles\Box 3\3\ 03-page055 | |
| Date | 4th May 1912 | |
| Marine Engine Piston, E1100, 3.8125, E2057, 2.8750 Connecting Rod, E1104, 2.1250, E1104, 2.1250 Gudgeon Pin, E1101, .4297, E1101, .4297 Rings, E1102/3, .6328, E1102/3, .6328 Locking Screw, V1209, .0387, V1209, .0387 Small End Bush, E1105, .2500, E1105, .2500 Large End Bush, E1106, .6870, E1106, .6870 Bolts, Nuts etc, V302, .3750, V302, .3750 Liners, E1107, .1250, E1107, .1250 To use when bearings go hard. Total 8.4757. Lightest piston we have obtained. Total 7.5382. Standard Engine Do. in Connecting Rod, E1097, 4.1250, C737, 3.000 Connecting Rod, E1230, 1.9375, E1230, 1.9375 Gudgeon Pin, E104, .4687, E104, .4687 Rings, E187/8, .6800, E187/8, .6800 Locking Screw, V1209, .0387, V1209, .0387 Small End Bush, V301, .2073, V301, .2073 Large End Bush, E1231, .8750, E1231, .8750 Bolts, Nuts etc, V302, .3750, V302, .3750 Liners, E2257, .0934, E2257, .0937 Standard Piston. Total 8.8509. Piston with which we were troubled by distortion. Total 8.2257. G.H. Notes To Mr Rowledge This is a B/P not an act. as when you see that without Log book entries etc. A H 4/12/- | ||