Osiris
Also known as: Glen Mumbles, Glen Marissa, G12
Osiris is a wooden cruiser built in 1949 to design number 400, the Glen Class, created by A. Mylne & Co. in 1945. Constructed by W A Clapham at Glen Boatyard, Bangor, Co Down as hull number 12, she measures 18 feet on the waterline with a beam of 6.5 feet and draft of 4 feet. The vessel remains afloat and has undergone small modifications to her cockpit and teak deck over the years. She is powered by an electric outboard motor.
Ownership
Current owner
Ross Cahill-O'Brien
Since Jun 2016
Crew
No crew records yet. If you've sailed on this yacht, claim your place in her history.
Specification
Details
Registry & Identity
History & Notes
Small modifications to cockpit and teak decked. Originally built Glen Boatyard, as Hull number 12. 1949 approx. Original owner J.S. Boumphrey
Design Archive
MiscDesign No. 400
Glen Class
Designed 1945
Sister Yachts
37 other vessels built to the same design.
Glen Shesk
1946
Glen Shane
1947
Glen Shiel
1947
Glen Correl
1947
Glenaan
1947
Glen Roan
1948
Lapwing
1948
Glen
1948· Not Known
Glen Gesh
1948
Glen Helen
1949
Glen Oe
1949
Glen Iris
1949
Glenariff
1949
Glen Roy
1949· No
Glen Moyle
1949
Glen Dun
1949
Glen Isla
1949
Dorinda
1950· No
Margaret
1950
Glen Orchy
1950
Glen Coe
1950
Glendhu
1950
Glen Reagh
1950
Glen May
1950
Glen Elg
1950
Glen Cree
1950
Glen Cona
1951
Pterodactyl
1951
Kingfisher
1951· Not Known
Glen Fern
1951
Unnamed (32
1951· No
Glen Cuan
1951
Glen Millar
1951
Glen Dora
1951
Glen Lena
1952· Not Known
Glen Lark
1952
Glen Luce
1965
Historical Context
The Glen Class (design 400) was conceived in 1945, during wartime, when A. Mylne & Co. was designing for a future of peacetime leisure sailing. The class represented the office's commitment to practical, affordable cruising vessels accessible to owner-builders and small boatyards. Post-war Britain saw strong demand for modest cruising yachts, and designs of this type—compact, sea-kindly, and economical to construct—formed an important part of A. Mylne & Co.'s portfolio through the 1950s and beyond. Glen Boatyard's construction of Osiris as hull 12 places her within a broader cohort of small cruisers that sustained British yacht building in the immediate post-war recovery period.