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The "tool" Cassette
Figure 39: Weight of the components and the total weight of the tool cassette [MN]
The tool cassettes have a unique and simple design which is suited for this cassette only. The
aluminum structure is heavier than the other cassettes since there is no need for hole to make
the API 17D interface fit, however it is partly compensated with more space for buoyancy.
There is no tooling other than the structure itself. The cassette weight is 1 kg in water.
Table 18: Weight of all the components and the total weight if the cassette
Weight in Air
7.65 kg
3.5 kg
11.2 kg
Cassette structure
Buoyancy in structure
Total Weight
Weight in Water
4.8 kg
-3.8
1 kg
Free Stab Cassette
Figure 40: Free stab cassette [MN]
The free stab cassette is more customized than the others. The cassette structure is without
any front so it is possible to reach the hot stab. The modified structure requires a different
buoyancy package than the other cassettes, and the structure will therefore be of different
weight.
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