Maneuvering Patterns

A vital consideration needing to be made in applying fuel cells as power source for ship propulsion is that, compared with land vehicles, extremely sharp and wide fluctuations of load require to be accommodated. Such load fluctuations are caused under conditions such as:-

- Maneuvering in close waters inside ports

- Actuation of large shipboard machinery such as bow thrusters for berthing and unberthing operations

- Crash stop astern maneuver to avoid collision.

- Propeller racing when it emerges above water in heavy sea.

The conditions cited above would follow the patterns shown in Fig. 1.

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