Launch-type boiler

German semi-portable engine, with boiler firebox withdrawn for servicing

End-on view of the furnace, showing the small steam space above

Early semi-portable engine, 1860s, with enlarged furnace

Locomotive Effie on Sir Arthur Heywood's Duffield Bank Railway

A launch-type, gunboat or horizontal multitubular boiler is a form of small steam boiler. It consists of a cylindrical horizontal shell with a cylindrical furnace and fire-tubes within this.

Their name derives from the boiler's popular use at one time for small steam yachts and launches. They have also been used in some early Naval torpedo boat destroyers.

单词	Gunboat boiler
释义	Gunboat boiler 英语百科 Launch-type boiler A launch-type, gunboat or horizontal multitubular boiler is a form of small steam boiler. It consists of a cylindrical horizontal shell with a cylindrical furnace and fire-tubes within this. Their name derives from the boiler's popular use at one time for small steam yachts and launches. They have also been used in some early Naval torpedo boat destroyers.
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Gunboat boiler

Launch-type boiler