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).
Material analysis and weight breakdown for the Vulture II engine.
| Identifier | ExFiles\Box 132\2\ scan0137 | |
| Date | 18th May 1941 | |
| VULTURE II. - MATERIAL ANALYSIS - Lev/Cr.{Mr Cra???ster / Mr Chichester}2/ET.18.5.41. | Section. | % of total engine weight. | Total weight of section. (lbs.) | Material distribution through section. | | | | | Material distribution through Engine. | | | | | |---|---|---|---|---|---|---|---|---|---|---|---|---| | | | | Alum % | B & Brz.% | Steel % | Mag. % | Others. % | Alum % | Br & Bronze % | Steel % | Mag. % | Others. % | | 4000 | Crankcase & bearings | 15.4 | 383.6 | 63½ | 2½ | 34 | Neg. | Neg. | 23 | 13½ | 11 | 16 | Neg. | | 4010 | Crankshaft | 5.4 | 134.9 | * | | 99½ | | * | Neg. | | 11 | | Neg. | | 4020 | Piston | 3.3 | 81.9 | 69½ | | 30½ | | | 5½ | | 2 | | | | 4030 | Conn: rods | 4.2 | 105.1 | | 5½ | 94½ | | | | 8 | 8½ | | | | 4040 | Valves & fittings | 2.2 | 54.7 | | | 99½ | | * | | | 4½ | | Neg. | | 4050 | Cylinders | 21.9 | 546.5 | 62 | 5½ | 33 | | 1½ | 32 | 27 | 5 | | 6 | | 4070 | Wheelcase | 2.9 | 72.1 | 83 | 1 | 13 | | 3 | 5½ | 1 | 1 | | 1½ | | 4090 | Camshaft Drive | 1.2 | 30.5 | 39 | | 61 | | Neg. | 1 | | 1½ | | Neg. | | 4160 | Mag & Dist.Piece | 1.9 | 48.3 | 3 | * | 11½ | | 85 | Neg. | * | * | | 27 | | 4170 | C/sh & Rock.Mech. | 4.2 | 104.6 | 23 | 1 | 76 | | * | 2½ | 1½ | 6½ | | * | | 4240 | Reduction Gear | 14.8 | 369.9 | 28½ | 1 | 70 | Neg. | ½ | 10 | 5 | 21½ | 3½ | 1½ | | 4260 | Induction pipe | 3.6 | 88.6 | 72 | 1½ | 6 | | 20½ | 6 | 2 | * | | 12 | | 4270 | Coolant Conns: | 1.3 | 32.9 | 32½ | 10½ | 53½ | | 3½ | 1 | 5 | 1½ | | ½ | | 4330 | Ignition Harness | 2.0 | 49.1 | 1½ | 18½ | 11 | 3½ | 65½ | Neg. | 12½ | * | 78 | 20½ | | 4400 | Supercharger | 4.3 | 107.4 | 79½ | 2½ | 17 | | 1 | 8 | 3½ | 1½ | | 1 | | 4410 | Supercharger Drg. | 3.5 | 88.4 | 11½ | 1½ | 85 | | 2 | 1 | 2 | 6 | | 1 | | All other sections = | 7.9 | 195.7 | | | | | | 4½ | 18½ | 17 | 2½ | 29 | | Total of engine by adding detail weights. | 100.0 | 2494.2 | 42.7 | 2.8 | 48.3 | .1 | 6.1 | 100 | 100 | 100 | 100 | 100 | Standard Nett Dry Weight = Alum.................. includes all grades - Aluminium, duralumin, birmabright etc., Brass & Bronze........ " " " " - Brass, bronze, delta metal, dixtampo & everdure. Steel................. " " " " - Iron & Steel. Others................ " " " " - other materials composite pieces. (e.g. carburetter, flame traps, magnetos). Lev/Cr.{Mr Cra???ster / Mr Chichester} | ||