Comfort

In the following only such aspects of comfort are discussed as may be inferred from the general design features of this particular trimaran. Comfort features resulting from the size and furnishings of the vessel are not therefore treated here. Generally speaking, we always compare the trimaran with a single-hull ship of a conventional design having the same water displacement.

1. Availability of energy:
Even under “worst-case” conditions a daily average of 60.37 kWh is produced by sun, wind and waves. While mooring, this is sufficient for energy requirements on board and for replenishing short-term storage, so that there is also enough on-board electri­city available at night. Yet, during periods of travel, there is little left for the motors, as has been pointed out  in the chapter “Drive”.
On the other hand, energy required on board has always been deducted when calculating the drive power available for the
motors, i.e. theon-board energy supply of 33.8 kWh a day has been given priority over the ship drive.

2. Household and drinking water:
Rainwater can be collected on the large roof of the main hull and then used as household water or, after appropriate treatment, as drinking water. If energy is produced in abundance (refer to section "Energy"), this may be used to derive additional drinking or household water from seawater. Especially when the vessel is moored for longer periods and operates in areas with plenty of rainfall, it should be able to meet water needs independently.

3. Harmful or annoying emissions:
In this case there is no stench from (burned or unburned) diesel fuel or petroleum and no dust particles harmful to health. The ship’s motors are not in the main hull and hardly produce any noise anyway; they should therefore be almost inaudible. Noise due to waves slapping against t
he side of the ship practically does not occur, or only in very rough seas (refer to the section “Trimaran motion in waves”). Wooden roller bearings are used for mounting the floats and wind turbine mast, resulting in less bearing noise than would be the case with steel roller bearings.

4. Vessel motion on rough seas,
 particularly motion responsible for seasickness: With respect to linear movements resulting in speed changes, the Eco-Trimaran ought to slow down less when encountering a wave and should be comparable to a conventional vessel in the case of upward and downward motion. With respect to circular motion, the Eco-Trimaran is likely to pitch more strongly, yet slamming, which is particularly unpleasant, should hardly be felt at all. It should roll considerably less. While yawing is hard to predict, it is not very relevant for seasickness.
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