Understanding Vessel Propulsion: A Comprehensive Explanation

What is the classification of a vessel propelled both by sail and engines?

Choose the correct category from the options below:

A. not covered under any category

B. a sail vessel

C. a "special circumstance" vessel

D. a power-driven vessel

Answer:

A vessel propelled both by sail and engines is classified as a power-driven vessel.

When a vessel is being propelled both by sail and engines, it falls under the classification of a power-driven vessel according to the International Regulations for Preventing Collisions at Sea (COLREGS).

Even though the vessel may utilize sails as well, its primary means of propulsion is through mechanical engines. This categorization is based on the vessel's primary propulsion method, which in this case, is the engines.

Therefore, the vessel is considered a power-driven vessel, emphasizing that its main source of propulsion is mechanical rather than wind-based.

In summary, a vessel propelled both by sail and engines is categorized as a power-driven vessel under the COLREGS.