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Sailboat Specifications

Force 5

Cat (Unstayed) · Dbrd. Dinghy

Designed by Fred Scott, Jack Evans · Built by Amf Alcort, Weeks Yacht Yard · First built 1972

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LOA 13.87 ft  ·  Beam 4.83 ft  ·  Displacement 140.00 lb  ·  Sail Area 91.00 ft²  ·  Cat (Unstayed)  ·  Dbrd. Dinghy
About the Force 5 Sailboat

Designed by Fred Scott and Jack Evans in 1972, this compact single-handed dinghy became one of the most popular small sailboats in America, with over 15,000 units produced by AMF Alcort and Weeks Yacht Yard. The Force 5's fiberglass construction and modest 140-pound displacement make it an ideal trainer and recreational sailing dinghy for protected waters, small lakes, and coastal areas with moderate conditions. The boat's distinctive catboat rig features an unstayed mast supporting 91 square feet of sail area, creating a simple yet efficient sailing setup that's particularly appealing to beginners and sailing programs. This configuration eliminates the complexity of stays and shrouds while providing plenty of power for its lightweight hull. With a daggerboard centerboard system and shallow 3.16-foot draft, the Force 5 can access shoal waters and beach easily. Its high sail area-to-displacement ratio of 54.03 delivers spirited performance in light to moderate winds, though the relatively high capsize screening value suggests caution in stronger conditions. The Force 5 excels as a day sailor, sailing trainer, and small boat racing platform, offering an accessible entry point into sailing while providing enough performance to keep experienced sailors engaged in casual sailing and club racing scenarios.

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Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$1,600 – $1,600
typical asking price · boat only
Median $1,600  ·  1 listing used
Boat only
$1,600 – $1,600 1
With trailer
$1,500 – $1,500 1
About this estimate ▾
Dimensions & Specifications
LOA (Length Overall) 13.87 ft / 4.23 m
LWL (Waterline Length) 13.18 ft / 4.02 m
Beam 4.83 ft / 1.47 m
Max Draft 3.16 ft / 0.96 m
Min Draft 0.25 ft / 0.08 m
Displacement 140.00 lb / 64 kg
Sail Area (Reported) 91.00 ft² / 8.45 m²
Design & Construction
Hull Type Dbrd. Dinghy
Rigging Type Cat (unstayed)
Construction FG
Designer Fred Scott, Jack Evans
Builder AMF Alcort, Weeks Yacht Yard
First Built 1972
Number Built 15000
Associations Force 5 Class Association
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Frequently Asked Questions

What is the Force 5's sail area to displacement ratio?

The Force 5 has a Sail Area to Displacement ratio (SA/D) of 54.03. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Force 5's comfort ratio?

The Force 5 has a Ted Brewer Comfort Ratio of 1.98. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Force 5 safe for offshore sailing?

The Force 5 has a Capsize Screening Formula value of 3.72. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Force 5?

The theoretical hull speed of the Force 5 is 4.86 kn knots, calculated from its waterline length.

How much does a Force 5 weigh?

The Force 5 has a displacement of 140.00 lb and a length overall (LOA) of 13.87 ft.

How much does a used Force 5 cost?

Based on 1 recent market listings, used Force 5 sailboats typically sell for between $1,600 and $1,600, with a median asking price of $1,600. Price varies significantly based on year, condition, location, and included equipment.

Who designed the Force 5?

The Force 5 was designed by Fred Scott, Jack Evans, first built in 1972.