Designed by renowned naval architect Carl Alberg in 1966, this compact cruiser exemplifies the traditional sailing qualities that made Alberg designs legendary among sailors seeking seaworthy pocket cruisers. Built by Sailstar Boats and later Bristol Yachts, the Corinthian 19 features the classic long keel configuration that Alberg favored, providing exceptional tracking ability and inherent stability.
At 19.50 feet overall with a beam of 6.50 feet, this fiberglass sloop offers surprising interior volume while maintaining excellent sailing characteristics. The substantial displacement of 2,724 pounds, combined with 1,100 pounds of ballast, creates a stiff, confidence-inspiring platform ideal for coastal cruising and daysailing. Her fractional sloop rig carries 193 square feet of sail area, providing adequate power while remaining manageable for short-handed sailing.
The boat's impressive comfort ratio of 21.73 and conservative capsize screening formula of 1.86 reflect Alberg's philosophy of prioritizing safety and seaworthiness over speed. With a theoretical hull speed of 5.10 knots, she's built for relaxed cruising rather than racing. The moderate 2.75-foot draft opens up shallow harbors and gunkholes, making her an excellent choice for exploring protected waters and enjoying weekend getaways with classic sailing yacht character.
SA/Displacement
Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
15.87
Ballast/Displacement
Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
Displacement/Length
Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
398.89
Comfort Ratio
Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
21.73
Capsize Screening Formula
The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.86
Hull Speed
Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions.
5.10 kn
S# (Speed Number)
The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
1.08
Pounds/Inch Immersion
Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline.
336.77 pounds/inch
SA/Displacement (Calc)
Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure.
15.86
