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Young Sun 43
Designer: Ron Amy  ·  Builder: Young Sun  ·  First built: 1978
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About the Young Sun 43

Produced by the Taiwanese builder Young Sun, the 43 is a bluewater cruising sailboat that reflects the practical, capable design philosophy common to many Asian-built production cruisers of its era. Designed with long-distance voyaging in mind, this vessel offers the kind of substantial construction and livable interior layout that appeals to sailors planning extended passages or liveaboard life. Like many boats of its type, the Young Sun 43 likely features a full or modified full keel configuration, contributing to directional stability and forgiving motion offshore — qualities that cruising sailors prize on passages across open water. The hull form suggests a boat that rewards patient, steady sailing rather than competitive racing, making it well suited to coastal cruising and bluewater adventure alike. While detailed specifications are limited, the Young Sun 43 has attracted a modest but loyal following among budget-conscious cruisers who appreciate its solid build quality and practical accommodations. For those researching an affordable entry into bluewater cruising, this boat represents a worthy candidate worth investigating further, particularly through owner forums and direct inspection.

Core Dimensions
LOA (Length Overall) 42.67 ft / 13.01 m
LWL (Waterline Length) 35.33 ft / 10.77 m
Beam 12.92 ft / 3.94 m
Max Draft 6.33 ft / 1.93 m
Displacement 35,000.00 lb / 15,876 kg
Ballast 10,800.00 lb / 4,899 kg
Sail Area (Reported) 1,150.00 ft² / 106.84 m²
Design & Construction
Hull Type Long Keel
Rigging Type Cutter
Construction FG
Designer Ron Amy
Builder Young Sun
First Built 1978
Related Sailboats Formosa 44 · Ct 43 · Hans Christian 43 · Taswell 43 · Slocum 43
Owner Reviews

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Known Issues & What to Watch For

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Performance Ratios
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
17.27
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
47.73
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
1.58
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. 7.96
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. 1.0
How It Compares

vs. Ct 43, Formosa 44, Hans Christian 43, Slocum 43, Taswell 43

This boat Similar boats
Dimensions
LOA
Young Sun 43 ★
42.7 ft
Ct 43
42.7 ft
Formosa 44
42.7 ft
Hans Christian 43
42.6 ft
Slocum 43
42.5 ft
Taswell 43
42.8 ft
LWL
Young Sun 43 ★
35.3 ft
Ct 43
33.9 ft
Formosa 44
35.6 ft
Hans Christian 43
36.8 ft
Slocum 43
35.8 ft
Taswell 43
38.3 ft
Beam
Young Sun 43 ★
12.9 ft
Ct 43
13.0 ft
Formosa 44
13.0 ft
Hans Christian 43
13.8 ft
Slocum 43
12.9 ft
Taswell 43
13.7 ft
Displacement
Young Sun 43 ★
35 lbs
Ct 43
23 lbs
Formosa 44
34 lbs
Hans Christian 43
31 lbs
Slocum 43
28 lbs
Taswell 43
23 lbs
Ballast
Young Sun 43 ★
10 lbs
Ct 43
9 lbs
Formosa 44
10 lbs
Hans Christian 43
12 lbs
Slocum 43
9 lbs
Taswell 43
9 lbs
Sail Area
Young Sun 43 ★
1 sq ft
Ct 43
820 sq ft
Formosa 44
1 sq ft
Hans Christian 43
894 sq ft
Slocum 43
810 sq ft
Taswell 43
860 sq ft
Performance
PHRF Rating (lower = faster)
Young Sun 43 ★
Ct 43
Formosa 44
Hans Christian 43
150 s/nm
Slocum 43
Taswell 43
108 s/nm
SA / Displacement (higher = more powerful)
Young Sun 43 ★
17.3
Ct 43
15.9
Formosa 44
17.2
Hans Christian 43
14.4
Slocum 43
14.1
Taswell 43
16.8
Ballast / Disp (higher = stiffer)
Young Sun 43 ★
Ct 43
39.5 %
Formosa 44
Hans Christian 43
Slocum 43
32.0 %
Taswell 43
40.9 %
Comfort Ratio (higher = more comfortable offshore)
Young Sun 43 ★
47.7
Ct 43
33.1
Formosa 44
47.1
Hans Christian 43
38.2
Slocum 43
38.0
Taswell 43
28.2
Capsize Screening (lower = safer)
Young Sun 43 ★
1.58
Ct 43
1.81
Formosa 44
1.59
Hans Christian 43
1.76
Slocum 43
1.70
Taswell 43
1.91
Displacement / Length (lower = lighter)
Young Sun 43 ★
Ct 43
273
Formosa 44
Hans Christian 43
Slocum 43
272
Taswell 43
187
Hull Speed
Young Sun 43 ★
8.0 kts
Ct 43
7.8 kts
Formosa 44
8.0 kts
Hans Christian 43
8.1 kts
Slocum 43
8.0 kts
Taswell 43
8.3 kts
Speed Number (higher = faster)
Young Sun 43 ★
Ct 43
1.9
Formosa 44
Hans Christian 43
1.7
Slocum 43
1.7
Taswell 43
2.8
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