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Sailboat Specifications

Spindrift 37 Crowther

Masthead Sloop · Catamaran Twin Dbrd.

Designed by Lock Crowther · Built by Various From Plans · First built 1976

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LOA 37.50 ft  ·  Beam 20.00 ft  ·  Displacement 7,000.00 lb  ·  Sail Area 913.00 ft²  ·  Masthead Sloop  ·  Catamaran Twin Dbrd.
About the Spindrift 37 Crowther Sailboat

Lock Crowther's Spindrift 37 represents a classic approach to performance catamaran design from the mid-1970s, embodying the Australian designer's philosophy of combining speed with practical cruising capabilities. Built from plans by various yards starting in 1976, this fiberglass catamaran features twin daggerboards and a masthead sloop rig that delivers impressive sailing performance across a wide range of conditions. With its 20-foot beam and relatively light 7,000-pound displacement, the Spindrift 37 achieves an outstanding sail area to displacement ratio of 40.05, marking it as a genuinely fast cruising catamaran. The generous 913 square feet of sail area provides excellent light-air performance, while the twin daggerboard configuration offers superior upwind ability compared to fixed-keel catamarans of the era. This design suits sailors seeking spirited coastal cruising and longer offshore passages, with accommodations that balance comfort with performance priorities. The Spindrift 37's reputation centers on its ability to cover ground quickly while maintaining reasonable sea-keeping qualities. As a plans-built boat, construction quality varies among individual hulls, making careful inspection essential for prospective buyers. The design remains respected among catamaran enthusiasts for its honest sailing characteristics and Crowther's thoughtful approach to multihull naval architecture.

Dimensions & Specifications
LOA (Length Overall) 37.50 ft / 11.43 m
LWL (Waterline Length) 34.00 ft / 10.36 m
Beam 20.00 ft / 6.10 m
Max Draft 4.67 ft / 1.42 m
Min Draft 1.67 ft / 0.51 m
Displacement 7,000.00 lb / 3,175 kg
Sail Area (Reported) 913.00 ft² / 84.82 m²
Design & Construction
Hull Type Catamaran Twin Dbrd.
Rigging Type Masthead Sloop
Construction FG
Designer Lock Crowther
Builder Various from plans
First Built 1976
Related Sailboats Nauticat 38 · Rival 38 · Cc 38 2 · Panda 38 · Ericson 37
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Engine & Accommodations
KSP 1.05
Frequently Asked Questions

What is the Spindrift 37 Crowther's comfort ratio?

The Spindrift 37 Crowther has a Ted Brewer Comfort Ratio of 5.67. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Spindrift 37 Crowther safe for offshore sailing?

The Spindrift 37 Crowther has a Capsize Screening Formula value of 4.19. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Spindrift 37 Crowther?

The theoretical hull speed of the Spindrift 37 Crowther is 7.81 kn knots, calculated from its waterline length.

How much does a Spindrift 37 Crowther weigh?

The Spindrift 37 Crowther has a displacement of 7,000.00 lb and a length overall (LOA) of 37.50 ft.

Who designed the Spindrift 37 Crowther?

The Spindrift 37 Crowther was designed by Lock Crowther, first built in 1976.