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Sailboat Specifications

Zip

Fractional Sloop · Fin Keel

Designed by Harold Brainard · Built by Brainard Boat Works/Zip Sloops Inc. (Usa) · First built 1933

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LOA 17.00 ft  ·  Beam 6.00 ft  ·  Displacement 1,000.00 lb  ·  Sail Area 130.00 ft²  ·  Fractional Sloop  ·  Fin Keel
About the Zip Sailboat

Originally launched in 1933, this compact Harold Brainard design represents one of the earlier examples of affordable small-boat sailing that helped democratize the sport. With over 1,000 hulls built by Brainard Boat Works and later Zip Sloops Inc., the Zip established itself as a popular choice for sailing enthusiasts seeking an accessible entry into the hobby. At 17 feet overall, the Zip's fractional sloop rig and fin keel configuration deliver responsive handling that makes it particularly well-suited for day sailing, sailing instruction, and small boat racing. The wood and fiberglass single-chine construction reflects the transitional era when builders were experimenting with combining traditional materials with emerging fiberglass technology. The boat's relatively low displacement of 1,000 pounds paired with 130 square feet of sail area creates a lively sailing character, while the 6-foot beam provides adequate stability for its size. The 2-foot draft allows access to shallow waters and easy trailering, making it ideal for exploring protected coastal areas, lakes, and bays. With a comfort ratio of 8.71 and capsize screening formula of 2.4, the Zip is clearly intended for protected waters rather than offshore ventures, positioning it perfectly as a spirited day sailer and trainer.

Dimensions & Specifications
LOA (Length Overall) 17.00 ft / 5.18 m
LWL (Waterline Length) 16.00 ft / 4.88 m
Beam 6.00 ft / 1.83 m
Max Draft 2.00 ft / 0.61 m
Displacement 1,000.00 lb / 454 kg
Sail Area (Reported) 130.00 ft² / 12.08 m²
Design & Construction
Hull Type Fin Keel
Rigging Type Fractional Sloop
Construction Wood /FG single chine
Designer Harold Brainard
Builder Brainard Boat Works/Zip Sloops Inc. (USA)
First Built 1933
Number Built 1000
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Frequently Asked Questions

What is the Zip's sail area to displacement ratio?

The Zip has a Sail Area to Displacement ratio (SA/D) of 20.84. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Zip's comfort ratio?

The Zip has a Ted Brewer Comfort Ratio of 8.71. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Zip safe for offshore sailing?

The Zip has a Capsize Screening Formula value of 2.4. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Zip?

The theoretical hull speed of the Zip is 5.36 kn knots, calculated from its waterline length.

How much does a Zip weigh?

The Zip has a displacement of 1,000.00 lb and a length overall (LOA) of 17.00 ft.

Who designed the Zip?

The Zip was designed by Harold Brainard, first built in 1933.