Superleggera Weight Estimate
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Weights are in kg. Moments and levers are about the CAD drawing origin (550mm behind back of trailer). If you would like to view/save the original Excel 97 spreadsheet, download it here.If you would like an explanation of this table, go here. |
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Unit |
Units |
Weight |
Line |
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Line |
Category |
Category |
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Category |
Item |
No off |
Material |
Unit |
weight |
each |
each |
Weight |
Lever |
Moment |
Weight |
Moment |
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kg/unit |
unit |
kg |
kg |
m |
kg-m |
kg |
kg-m |
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Chassis |
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Structure |
Axle tube |
1 |
50x50x3 SHS |
m |
4.66 |
1.23 |
5.73 |
5.73 |
1.53 |
8.74 |
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Susp mount plates |
2 |
6 plate |
m2 |
47.10 |
0.015 |
0.72 |
1.43 |
1.53 |
2.18 |
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Longitudinals |
2 |
50x50x3 RSA |
m |
2.30 |
3.00 |
6.90 |
13.80 |
2.39 |
32.98 |
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Hitch mount |
1 |
50x50x3 SHS |
m |
4.66 |
0.13 |
0.61 |
0.61 |
3.84 |
2.32 |
21.57 |
46.23 |
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Fittings |
Susp units |
2 |
guess |
ea |
5 |
1 |
5.00 |
10.00 |
1.50 |
14.95 |
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Wheel/tyres |
2 |
guess |
ea |
5 |
1 |
5.00 |
10.00 |
1.46 |
14.60 |
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Hitch |
1 |
guess |
ea |
1 |
1 |
1.00 |
1.00 |
3.92 |
3.92 |
21.00 |
33.47 |
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Base |
Ply base |
1 |
12 ply |
m2 |
7.8 |
2.765 |
21.56 |
21.56 |
1.70 |
36.66 |
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Side framing |
2 |
44x44 |
m |
1.16 |
0.933 |
1.08 |
2.16 |
1.02 |
2.21 |
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Side framing |
2 |
44x44 |
m |
1.16 |
1.252 |
1.45 |
2.90 |
2.17 |
6.30 |
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Cross members |
4 |
44x44 |
m |
1.16 |
1.114 |
1.29 |
5.17 |
1.77 |
9.15 |
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Bolts, say |
10 |
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0.2 |
1 |
0.20 |
2.00 |
1.80 |
3.60 |
33.80 |
57.92 |
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Sides |
Side + door - window |
2 |
9 ply |
m2 |
5.8 |
2.398 |
13.91 |
27.82 |
2.00 |
55.63 |
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Edge framing |
2 |
12 ply |
m2 |
7.8 |
0.127 |
0.99 |
1.97 |
2.20 |
4.34 |
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Door jamb back |
2 |
9 ply |
m2 |
5.8 |
0.056 |
0.32 |
0.65 |
1.85 |
1.20 |
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Door jamb front |
2 |
9 ply |
m2 |
5.8 |
0.053 |
0.31 |
0.61 |
2.50 |
1.54 |
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Door jamb bottom |
2 |
9 ply |
m2 |
5.8 |
0.041 |
0.24 |
0.48 |
2.13 |
1.02 |
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Door jamb top |
2 |
9 ply |
m2 |
5.8 |
0.031 |
0.18 |
0.36 |
2.13 |
0.77 |
31.89 |
64.50 |
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Top |
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Fixed top |
Main ply |
1 |
3 ply |
m2 |
1.9 |
3.399 |
6.46 |
6.46 |
2.60 |
16.79 |
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Cross beams |
7 |
33x33 |
m |
0.65 |
1.178 |
0.77 |
5.36 |
2.50 |
13.40 |
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Aft cross beam |
1 |
ex 66x33 |
m |
1.3 |
1.178 |
1.53 |
1.53 |
1.31 |
2.01 |
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Lid closing piece |
1 |
33x33 |
m |
0.65 |
1.202 |
0.78 |
0.78 |
0.63 |
0.49 |
14.13 |
32.69 |
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Galley Lid |
Lid ply |
1 |
3 ply |
m2 |
1.9 |
1.793 |
3.41 |
3.41 |
0.80 |
2.73 |
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Lid longl frames |
4 |
2 x 9 ply |
m2 |
11.6 |
0.073 |
0.84 |
3.36 |
0.80 |
2.69 |
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Lid top beam |
1 |
ex 66x33 |
m |
1.3 |
1.182 |
1.54 |
1.54 |
1.27 |
1.95 |
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Lid bottom beam |
1 |
50x33 |
m |
0.99 |
1.182 |
1.17 |
1.17 |
0.59 |
0.68 |
9.48 |
8.05 |
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Internals |
Galley divider |
1 |
9 ply |
m2 |
5.8 |
0.135 |
0.78 |
0.78 |
0.86 |
0.67 |
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Lower bulkhead |
1 |
9 ply |
m2 |
5.8 |
0.590 |
3.42 |
3.42 |
1.00 |
3.42 |
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Galley worktop |
1 |
9 ply |
m2 |
5.8 |
0.691 |
4.01 |
4.01 |
0.99 |
3.97 |
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Upper bulkhead |
1 |
9 ply |
m2 |
5.8 |
0.760 |
4.41 |
4.41 |
1.30 |
5.73 |
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Galley shelves |
2 |
9 ply |
m2 |
5.8 |
0.210 |
1.22 |
2.44 |
1.20 |
2.93 |
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Shelf divider |
1 |
9 ply |
m2 |
5.8 |
0.067 |
0.39 |
0.39 |
1.20 |
0.47 |
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Locker base |
1 |
9 ply |
m2 |
5.8 |
0.472 |
2.74 |
2.74 |
1.50 |
4.11 |
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Locker front |
1 |
9 ply |
m2 |
5.8 |
0.654 |
3.79 |
3.79 |
1.70 |
6.45 |
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Overhead base |
1 |
9 ply |
m2 |
5.8 |
0.357 |
2.07 |
2.07 |
2.75 |
5.69 |
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Overhead front |
1 |
9 ply |
m2 |
5.8 |
0.377 |
2.19 |
2.19 |
2.60 |
5.69 |
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Joining fillets |
9 |
21x21 |
m |
0.26 |
1.202 |
0.31 |
2.81 |
1.75 |
4.92 |
29.05 |
44.05 |
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Mudguards |
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2 |
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ea |
2.5 |
1 |
2.50 |
5.00 |
1.40 |
7.00 |
5.00 |
7.00 |
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Subtotal |
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165.93 |
293.91 |
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Margin |
5% |
8.30 |
14.70 |
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Total LCG |
1.771 |
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Total |
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174.2 |
308.6 |
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LCG of wheels |
1.459 |
a |
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Weight on wheels |
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152.8 |
88% |
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LCG of hitch |
3.995 |
b |
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Weight on hitch |
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21.5 |
12% |
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