Shearwater III
The Shearwater III is a type of two crew racing catamaran, produced originally by G. Prout & Sons of Canvey Island, Essex, and was first sold in kit form. It is a "restricted development class".
According to the UK's National Maritime Museum, The Shearwater III was the world’s first production catamaran.

Brothers Francis and Roland Prout were canoeists who took part in the 1952 Helsinki Olympics. They worked in the family firm G. Prout & Sons Ltd, with their father, making folding canoes and dingies. They developed their first catamaran, the Shearwater I in the early 1950s. Initiallly they experimentally lashed together two K1 kayaks and added a bamboo platform and a mast and sail, and after the success of this went on to build the "Shearwater I", in which they participated in local regattas. They then developed the "Shearwater III".

Shearwaters regularly field at least 15 entries at National Championships since 1998.
Q190403
catamaran
Concept
Q97861178
G. Prout & Sons
MEDIA
Q1033978
Canvey Island
LOC
Q23240
Essex
LOC
Q5489088
Francis
PER
Q7360389
Roland Prout
PER
Q20856109
canoeist
Concept
Q8407
1952 Helsinki Olympics
EVE
Q179246
kayak
Concept
Q97738491
Shearwater III
MISC
Q97738491
Shearwater III
MISC
Q97738491
Shearwater III
MISC
1952-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1952
DATE
1950-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1950
DATE
1998-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1998
DATE
+1^^http://www.w3.org/2001/XMLSchema#decimal
1
NUMBER
+15^^http://www.w3.org/2001/XMLSchema#decimal
15
NUMBER
instance of
manufacturer
designed by
designed by
participant
participant