Masthead Ketch
• Trimaran with fixed unballasted keel
• Built 1965–1993
Dimensions
LOA
41 ft
LWL
38.5 ft
Beam
25.5 ft
Max Draft
2.93 ft
Displacement
14,000 lbs
Ballast
— lbs
Performance Ratios
Capsize Ratio ⓘ
4.23
(use caution offshore)
SA/D Ratio ⓘ
21.2
D/L Ratio ⓘ
110
Ballast Ratio ⓘ
—
Sail Plan
Sail Area
771 sq ft
Construction
Hull Type
Trimaran with fixed unballasted keel
Rig Type
Masthead Ketch
Hull Material
FG
Ballast Type
—
Production
First Built
1965
Last Built
1993
Number Built
28
Engine & Accommodations
Engine Make
Perkins
Power
50 hp
Water
100 gal
Fuel
100 gal
Mast Height
46 ft
Notes: Claimed to be the first fiberglass production multihull built in the US.\nTed Irwin's only production multihull design. \nSimilar to Arthur Piver's Victress 40 design, it has been said Irwin consulted with Charlie Morgan, Morgan Yachts, on this design and at the time, Arthur Piver was working for Morgan.\nAll interiors were custom built and vary from boat to boat.\nBruce Number: 1.16