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).
Detailed breakdown of engine component weights by material type.
Identifier | ExFiles\Box 132\2\ scan0118 | |
Date | 24th September 1940 guessed | |
SECTION | % of Eng. | Total Wt. of Sec. | ALUMINIUM. lbs. | % of Sec. | % of Eng. | BRASS & BRONZE lbs. | % of Sec. | % of Eng. | STEEL lbs. | % of Sec. | % of Eng. | MAGNESIUM. lbs. | % of Sec. | % of Eng. | OTHERS. lbs. | % of Sec. | % of Eng. 4000 c/Case & B'rgs. | 15.3 | 379.0979 | 242.3779 | 63.9 | 22.8 | 9.6998 | 2.6 | 15.7 | 126.4330 | 33.4 | 10.6 | .5573 | .15 | 15.8 | .0270 | .01 | .02 4010 C/Shaft | 5.4 | 134.9861 | .4687 | .4 | Neg. | | | | 134.5174 | 99.7 | 11.2 | | | | | | 4020 Pistons | 3.3 | 81.9343 | 57.0000 | 69.6 | 5.4 | | | | 24.9343 | 30.4 | 2.1 | | | | | | 4030 Conn.Rods | 4.2 | 105.3586 | | | | 5.6468 | 5.4 | 9.1 | 99.7118 | 94.6 | 8.3 | | | | | | 4040 Valves & Ftgs. | 2.2 | 54.8467 | | | | | | | 54.8467 | 100.0 | 4.6 | | | | | | 4050 Cylinders | 21.8 | 539.2955 | 339.2892 | 62.9 | 31.9 | 9.7809 | 1.8 | 15.8 | 180.8988 | 33.5 | 15.1 | | | | 9.3266 | 1.7 | 6.1 4070 W/Case & fts. | 2.9 | 72.1074 | 59.8729 | 83.0 | 5.6 | .7724 | 1.1 | 1.3 | 9.2463 | 12.8 | .8 | | | | 2.2158 | 3.1 | 1.5 4071 Aux.G/B.Drive | .4 | 9.7735 | 3.2766 | 33.5 | .3 | | | | 6.4938 | 66.4 | .5 | | | | .0031 | Neg. | Neg. 4072 Coolant P.Dr. | .1 | 3.1337 | .4880 | 15.6 | .1 | .1694 | 5.4 | .3 | 2.4707 | 78.8 | .2 | | | | .0056 | .2 | Neg. 4073 Oil Pump Dr. | .2 | 4.1460 | | | | | | | 4.1460 | 100.0 | .4 | | | | | | 4090 Camshaft Drive | 1.2 | 30.4601 | 11.8701 | 38.9 | 1.1 | | | | 18.5525 | 60.9 | 1.6 | | | | .0375 | .1 | Neg. 4100 St.Motor Drive | .6 | 14.4126 | 2.6064 | 18.1 | .2 | .5424 | 3.8 | .9 | 11.2503 | 78.1 | .9 | | | | .0135 | .1 | Neg. 4101 Engaging Mec. | .5 | 11.7869 | .1157 | 1.0 | Neg. | .0500 | .4 | .1 | 11.6212 | 98.6 | 1.0 | | | | | | 4110 Coolant Pump | .6 | 14.2755 | 8.7174 | 61.1 | .8 | 3.0816 | 21.6 | 5.0 | 1.9235 | 13.5 | .2 | | | | .5530 | 3.9 | .4 4130 Oil Pumps Main | 1.0 | 24.8380 | 11.7499 | 47.3 | 1.1 | 1.8317 | 7.4 | 3.0 | 11.2460 | 45.3 | .9 | | | | .0104 | Neg. | Neg. 4131 Oil Pumps Aux. | .2 | 6.1276 | 4.0635 | 66.3 | .4 | .3225 | 5.3 | .5 | 1.7416 | 28.4 | .2 | | | | | | 4160 Mag.Dr.& Ftgs. | 1.9 | 48.2773 | 1.4688 | 3.0 | .1 | .2920 | .6 | .5 | 5.5165 | 11.4 | .5 | | | | 41.0000 | 84.9 | 26.8 4161 A.T.D. | .3 | 7.5046 | 1.5710 | 20.9 | .2 | .8111 | 10.8 | 1.3 | 5.0618 | 67.9 | .4 | .0500 | .7 | 1.4 | .0107 | .1 | Neg. 4170 C/S & Hook.Mec. | 4.2 | 105.8430 | 24.1659 | 23.0 | 2.3 | 1.2368 | 1.2 | 2.0 | 79.4403 | 75.8 | 6.6 | | | | | | 4190 Tachometer Dr. | Neg. | .3568 | .1356 | 38.0 | Neg. | .0178 | 5.0 | Neg. | .2034 | 57.0 | Neg. | | | | | | 4240 Reduction Gear | 14.8 | 367.7288 | 105.9649 | 28.8 | 10.0 | 3.4309 | .9 | 5.6 | 257.9851 | 70.2 | 21.6 | .1181 | Neg. | 3.4 | .2298 | .1 | .2 4250 Priming Pipes | .2 | 3.8876 | .2469 | 6.4 | Neg. | 1.6738 | 43.1 | 2.7 | .2886 | 7.4 | Neg. | .0458 | 1.2 | 1.3 | 1.6325 | 42.0 | 1.1 4260 Induction Pipes | 3.6 | 88.3620 | 63.8355 | 72.2 | 6.0 | 1.2818 | 1.5 | 2.1 | 4.9049 | 5.6 | .4 | | | | 18.3398 | 20.8 | 12.0 4270 Coolant Conns. | 1.3 | 32.5523 | 10.7655 | 33.0 | 1.0 | 3.7817 | 11.6 | 6.1 | 16.9120 | 52.0 | 1.4 | | | | 1.0931 | 3.4 | .7 4280 Oil fittings | .4 | 10.3633 | .3467 | 3.4 | Neg. | .8711 | 8.4 | 1.4 | 9.0382 | 87.2 | .8 | | | | .1073 | 1.0 | .1 4300 Controls(Eng) | .2 | 5.1393 | .9144 | 17.8 | .1 | .1128 | 2.2 | .2 | 3.6837 | 71.7 | .3 | | | | .4284 | 8.3 | .3 4302 Controls C.S.Un. | .1 | 1.9854 | .1527 | 25.8 | .1 | .0067 | .3 | Neg. | 1.4023 | 70.6 | .1 | | | | .0637 | 3.2 | Neg. 4330 Ignition W.Fitt. | 2.0 | 49.1389 | .6306 | 1.3 | .1 | 8.7749 | 17.9 | 14.2 | 3.2554 | 6.6 | .3 | 2.7452 | 5.6 | 78.1 | 33.7528 | 68.7 | 22.1 4360 Fuel Pump | .3 | 6.3719 | 2.3034 | 36.2 | .2 | .7167 | 11.3 | 1.2 | 1.8354 | 28.8 | .1 | | | | 1.5164 | 23.8 | 1.0 4400 Supercharger | 4.5 | 110.9348 | 88.6596 | 79.9 | 8.3 | 2.7011 | 2.4 | 4.4 | 18.2858 | 16.5 | 1.5 | 1. | | | 1.2883 | 1.2 | .8 4402 Operating Mechn. | .7 | 16.9043 | 4.7692 | 28.2 | .5 | 1.6206 | 9.6 | 2.6 | 10.4920 | 62.1 | .9 | | | | .0225 | .1 | Neg. 4410 S/C Dr.Gears | 3.6 | 88.3636 | 10.0992 | 11.4 | 1.0 | 1.3789 | 1.6 | 2.2 | 75.2843 | 85.2 | 6.3 | | | | 1.6016 | 1.8 | 1.1 4430 Auto Boost Cont. | .4 | 10.6187 | 5.9457 | 55.9 | .6 | 1.0811 | 10.2 | 1.7 | 2.4439 | 23.0 | .2 | | | | 1.1480 | 10.8 | .8 4470 C.S.Unit Drive | .1 | 1.6625 | .4176 | 25.1 | Neg. | .2800 | 16.8 | .5 | .9610 | 57.8 | .1 | | | | .0039 | .2 | Neg. 4290 Carburetter | 1.6 | 38.9000 | | | | | | | | | | | | | 38.9000 | 100.0 | 25.9 ENGINE TOTALS = | 100.0 | 2480.0755* | 1064.6495 | 42.93 | 100.0 | 61.9669 | 2.50 | 100.0 | 1197.0305 | 48.27 | 100.0 | 3.5164 | .14 | 100.0 | 152.9122 | 6.16 | 100.0 | ||