GUY 27
Specifications
Hull
| LOA | 27.1 ft |
| LWL | 21 ft |
| Beam | 8.63 ft |
| Draft | 5.25 ft |
| Displacement | 4,409 lb |
| Ballast | 1,873.8 lb |
| Hull speed1.34·√LWL | 6.1 kn |
Rig & Sails
| Iforetriangle height | 28.87 ft |
| Jforetriangle base | 8.53 ft |
| Pmainsail luff | 29.53 ft |
| Emainsail foot | 9.84 ft |
| FLforestay | 8.5 ft |
| Mainsail | 280 sq ft |
| Jib (100%) | 123.1 sq ft |
| Spinnaker | 209.3 sq ft |
About the GUY 27
Designed by Guy-Christer Lönngren and built in 1977, the Guy 27 is a compact fractional sloop with a displacement of 4409.0 lb and a beam of 8.63 ft. While specific build counts are unavailable, owner reports highlight a distinct pattern of structural maintenance needs, particularly regarding deck integrity and standing rigging support.
- Best for:
- This boat suits coastal cruisers and weekend sailors who prioritize a manageable 27.1 ft LOA and are prepared for hands-on maintenance of aging composite structures. It is less ideal for those seeking a turnkey vessel due to the high frequency of reported core and post repairs.
- Bluewater capability:
- With a low capsize ratio of 2.11 and a comfort ratio of 16.91, the Guy 27 is designed for coastal and nearshore cruising rather than extended bluewater passages. The critical nature of reported deck core and mast step issues requires rigorous structural verification before considering offshore use.
- Comparables:
- Comparable to other late-1970s European fractional sloops like the Beneteau First 27 or O'Day 27, the Guy 27 shares similar dimensions and a focus on performance cruising. However, it distinguishes itself with a higher D/L ratio of 212.54, suggesting a heavier, more stable ride than many contemporary sport cruisers.
Performance
Pricing
We don't have market pricing data for the GUY 27 yet. If you own one, help other buyers — what did you pay for it? Reports build a community price estimate over time.
Estimated Cost of Ownership
Based on 27.1ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
11 reported issues across 7 systems for the GUY 27, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a GUY 27? 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 11 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
Similar Sailboats
Which engine powers your GUY 27?
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Brands sometimes mentioned for this model: Yanmar — is it one of these?
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Used sails that fit the GUY 27
Checking eBay for sails sized to this boat's rig…