Built in 1921 by Camper & Nicholsons, at Gosport, for the Royal Navy, CMB 103 is a fast motor torpedo boat. Her wooden hull is formed into a stepped hydroplane and she originally had twin Thornycroft engines linked to twin screws.
The idea for these boats originated with three naval officers who suggested a fast hit and run torpedo carrier that could skim over enemy minefields and attack German surface shipping in the Heligoland Bight. Thornycrofts developed the theme with a series of hydroplanes all called MIRANDA. These were probably the world’s first planing craft and were the prototypes CMBs. Altogether 117 were built.
Earle, Jim, Defence Lines Osea Island & their Intervention, Defence of Britain Project, pp5-8, 10 May, Edition 10, 1998
Brouwer, Norman J, International Register of Historic Ships, Anthony Nelson, pp144, Edition 2, 1993
Sullivan, Dick, Old Ships, Boats and Maritime Museums, Coracle Books, 1978
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