Steam gun boats (SGBs) were small Royal Navy vessels built from 1940 to 1942 for Coastal Forces during World War II. The class consisted of nine steam-powered torpedo boats combining aspects of both motor torpedo boats and motor gun boats while being twice as large vessels. They were developed in parallel with the 35-metre long Fairmile D motor torpedo boats ("dog boats"), specifically due to the need to hunt down German E-boats at a time of scarcity of suitable diesel engines.
Steam gun boats (SGBs) were small Royal Navy vessels built from 1940 to 1942 for Coastal Forces during World War II. The class consisted of nine steam-powered torpedo boats combining aspects of both motor torpedo boats and motor gun boats while being twice as large vessels. They were developed in parallel with the 35-metre long Fairmile D motor torpedo boats ("dog boats"), specifically due to the need to hunt down German E-boats at a time of scarcity of suitable diesel engines.
Source: Wikipedia "Steam gun boat" · CC BY-SA 4.0
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