
GULFSTAR 50
Specifications
Hull
| LOA | 50 ft |
| LWL | 39.67 ft |
| Beam | 13.67 ft |
| Draft | 5.5 ft |
| Displacement | 35,000 lb |
| Ballast | 10,500 lb |
| Hull speed1.34·√LWL | 8.4 kn |
Rig & Sails
| Iforetriangle height | 50.9 ft |
| Jforetriangle base | 19.1 ft |
| Pmainsail luff | 43.08 ft |
| Emainsail foot | 15.29 ft |
| PYmizzen luff | 27 ft |
| EYmizzen foot | 11 ft |
| FLforestay | 19.1 ft |
| Mainsail | 928.1 sq ft |
| Jib (100%) | 486.1 sq ft |
| Spinnaker | 826.4 sq ft |
About the GULFSTAR 50
Available as a sloop or ketch. Sometimes referred to as the GULFSTAR CSY 50 though it was never built specifically for or by CSY, most originally went into the charter trade. Ketch rig: I: 50.90' / 15.51m J: 19.10' / 5.82m P: 43.08' / 13.13m E: 15.29' / 4.66m PY: 27.00' / 8.23m EY: 11.00' / 3.35m Sail Area (100% fore+main triangles): 963.94 ft2/89.55 m2 Tall sloop: I: 55.00' / 16.76m J: 19.10' / 5.82m P: 47.50' / 14.48m E: 19.00' / 5.79m Sail Area (100% fore+main triangles): 976.50 ft2/90.72 m2
Designed by Lazarra and built by Gulfstar Yachts (USA) between 1975 and 1980, the Gulfstar 50 is a substantial cruising sloop with a production run of 172 hulls. It is characterized by its heavy displacement of 35000.0 lb and a beam of 13.67 ft, offering a stable and comfortable platform for long-range cruising.
- Best for:
- This vessel is best suited for experienced coastal and offshore cruisers who prioritize comfort and stability over speed, particularly those seeking a spacious interior for extended passages. Its heavy displacement and fin keel design make it well-regarded for bluewater passages, though it requires diligent maintenance to remain seaworthy.
- Bluewater capability:
- With a displacement of 35000.0 lb and a capsize ratio of 1.68, the Gulfstar 50 is inherently stable and well-suited for offshore passages, provided critical structural issues like keel smiles and deck core moisture are addressed.
- Comparables:
- Comparable boats from this era include the Tartan 44 and the O'Day 42, which share similar heavy-displacement characteristics and cruising-focused layouts. The Gulfstar 50 distinguishes itself with a wider beam and more luxurious interior finishes, appealing to owners who value space and comfort in a 50-foot package.
Performance
Estimated Value
Low ConfidenceAsking price by model year
6 listings · boat years 1975–1980 · median $125,900
Each dot is one listing · hover for details · dashed red line marks the median · obvious data-entry outliers (top & bottom 2.5%) excluded.
Estimated Cost of Ownership
Based on 50ft LOA. Actual costs vary by condition, usage, and local rates.
Featured YouTube Videos
Known Issues & Pre-Purchase Inspection
29 reported issues across 8 systems for the GULFSTAR 50, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a GULFSTAR 50? This is an in-depth report on the faults this model is known for — so you know exactly what to check when you walk the boat. For the price of a coffee.
- ✓ All 29 specific issues — severity, symptoms & fixes
- ✓ Model-specific pre-purchase inspection checklist
- ✓ Downloadable PDF to take to your surveyor — yours to keep
One-time $2.99 · secure checkout by Stripe · instant access · 30 days online, PDF yours to keep
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