Home/ Boats/ Portsmouth Yacht Co./C. E. Ryder (Usa)/ Eastward Ho Sr 31
Sailboat Specifications

Eastward Ho Sr 31

Masthead Sloop · Long Keel

Designed by Eldredge-Mcinnis · Built by Portsmouth Yacht Co./C. E. Ryder (Usa) · First built 1959

+ Add to Compare
LOA 30.50 ft  ·  Beam 9.82 ft  ·  Displacement 11,000.00 lb  ·  Sail Area 478.00 ft²  ·  Masthead Sloop  ·  Long Keel
About the Eastward Ho Sr 31 Sailboat

Originally launched in 1959, this classic design from Eldredge-McInnis represents traditional American yacht construction at its finest. Built by respected yards including Portsmouth Yacht Co. and C. E. Ryder, the SR 31 embodies the solid craftsmanship values of its era, with construction methods spanning wood, steel, and fiberglass depending on the individual hull. The boat's substantial 11,000-pound displacement and generous 4,500-pound ballast create exceptional stability and seakeeping ability, making this an ideal platform for serious coastal cruising and offshore passages. Her long keel configuration provides excellent directional stability and comfortable motion in seaway conditions, though at some expense to maneuverability in tight quarters. The masthead sloop rig delivers reliable performance with 478 square feet of working sail area. With a comfort ratio of 31.25, this design prioritizes seaworthiness and crew comfort over pure speed, reflecting the cruising priorities of her generation. The conservative capsize screening value of 1.77 further reinforces her offshore capability. Modern sailors will appreciate the 22-horsepower auxiliary engine for harbor maneuvering and calm-weather progress. This is quintessentially a cruiser's boat, built for those who value traditional sailing qualities and proven seaworthiness over contemporary performance metrics.

Dimensions & Specifications
LOA (Length Overall) 30.50 ft / 9.30 m
LWL (Waterline Length) 24.00 ft / 7.32 m
Beam 9.82 ft / 2.99 m
Max Draft 4.16 ft / 1.27 m
Displacement 11,000.00 lb / 4,990 kg
Ballast 4,500.00 lb / 2,041 kg
Sail Area (Reported) 478.00 ft² / 44.41 m²
Design & Construction
Hull Type Long Keel
Rigging Type Masthead Sloop
Construction Wood/Steel/FG
Designer Eldredge-McInnis
Builder Portsmouth Yacht Co./C. E. Ryder (USA)
First Built 1959
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

Engine & Accommodations
Engine Make Palmer
Engine Type Gas
Horsepower 22
Frequently Asked Questions

What is the Eastward Ho Sr 31's sail area to displacement ratio?

The Eastward Ho Sr 31 has a Sail Area to Displacement ratio (SA/D) of 15.52. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Eastward Ho Sr 31's comfort ratio?

The Eastward Ho Sr 31 has a Ted Brewer Comfort Ratio of 31.25. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Eastward Ho Sr 31 safe for offshore sailing?

The Eastward Ho Sr 31 has a Capsize Screening Formula value of 1.77. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Eastward Ho Sr 31?

The theoretical hull speed of the Eastward Ho Sr 31 is 6.56 kn knots, calculated from its waterline length.

How much does a Eastward Ho Sr 31 weigh?

The Eastward Ho Sr 31 has a displacement of 11,000.00 lb and a length overall (LOA) of 30.50 ft.

Who designed the Eastward Ho Sr 31?

The Eastward Ho Sr 31 was designed by Eldredge-Mcinnis, first built in 1959.