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Table 2 Scenarios that are tested for the VT case for IWT

From: Evaluating the performance of the vessel train concept

ScenariosVessel classSailing regimeWith/without bow thrusterCrew members on board on the LVCrew members on board on the FVs after crew reduction in the VT
1.6BBow thruster54a321
2.5BBow thruster54321
3.4BBow thruster4  2b1
4a.3BBow thruster4   1
4b.3BWithout4   1
4c.3A2Withoutc2   1
5a.2BBow thruster4   1
5b.2BWithout4   1
5c.2A2Without2   1
6a.1BBow thruster4   1
6b.1BWithout4   1
6c.1A2Without2   1
  1. Source: Authors’ composition based on Al Enezy et al. [1]
  2. aThe crew members on board for the FVs are reduced one by one starting from the cheapest to the most expensive and at the end the most skilled and expensive crew member is kept (the skipper). The crew costs are in function of the crew members and are not added as an average in the calculations. The maximum number of crew members on board of the FVs is one crew member less than the crew members for the reference situation, to have a cost advantage for the VT FVs
  3. bSome cells are empty because the number of crew members on board is different depending on the vessel class and sailing regime
  4. cThere are no data for bow thruster, thus the non-bow thruster data are used