SHANNON 28
Specifications
Hull
| LOA | 28 ft |
| LWL | 22.92 ft |
| Beam | 9.5 ft |
| Draft | 4.25 ft |
| Displacement | 9,300 lb |
| Ballast | 3,600 lb |
| Hull speed1.34·√LWL | 6.4 kn |
Rig & Sails
| Iforetriangle height | 38 ft |
| Jforetriangle base | 15 ft |
| Pmainsail luff | 32 ft |
| Emainsail foot | 10 ft |
| FLforestay | 15 ft |
| Mainsail | 457.8 sq ft |
| Jib (100%) | 285 sq ft |
| Spinnaker | 484.5 sq ft |
Engine
| Yanmar | 3GM30F27 hpSee all 31 parts → |
Performance
Estimated Value
Low ConfidenceAsking price by model year
8 listings · boat years 1979–1988 · median $50,000
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 28ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the SHANNON 28yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.
Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.
Own a SHANNON 28? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.
Similar Sailboats
Engine Parts & Maintenance
The engines most commonly fitted to this model. “All parts” opens the engine's full catalogue; each part links to a matching listing on 
or 
matched to its part number.
Don't see your engine listed? Search all engines → to find parts for the exact engine fitted to your boat.
Prices are reference figures — confirm the current price on Amazon. Always confirm fitment against your engine's model and serial before ordering. As an Amazon Associate we earn from qualifying purchases.
Used sails that fit the SHANNON 28
Checking eBay for sails sized to this boat's rig…