Yam Seng

An Invited Friend of the Harrison Butler Association
Designed using Harrison Butler's Book
(Crusing Yachts; Design and Performance, 1st Edition, 1945)

Yam Seng being built
Yam Seng under construction, c1946

Epic Voyage of 1948
Major JW Bossard wrote of Yam Seng that “I designed my dream-ship with the help of T Harrison Butler's little book, Cruising Yachts, and built her with Japanese and Chinese labour”. Along with three crew he then sailed her from Singapore to Portsmouth, a voyage that took six months and an account of which was published in two parts in Yachting Monthly, January and February 1950.

Press cutting from The Singapore Free Press, 20th July 1948

She was a large boat of 43 feet overall length and 12 feet in the beam, and so clearly a scaled up and heavily modified version of Harrison Butler's Sinah design, the canoe stern replaced with a transom. Aside from the 1948 voyage itself, little is known about Yam Seng, or what became of her once in England.

Yam Seng Sail Plan
Yam Seng's hull form and sail plan

Yam Seng Statistics
Built : 1947 by JW Bossard, Singapore
LOA : 43' 0"
LWL : 38' 0"
Beam : 12' 0"
Draught : 6' 5"
Displacement : 17 tons TM

Yam Seng Custodians & Home Ports 
Major JW Bossard MBE RE (1947-1950-?) Portsmouth

Yam Seng Links
• None found (June 2016)

Page last updated : June 2016


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