MORGAN OUT ISLAND 51
Specifications
Hull
| LOA | 51.5 ft |
| LWL | 43 ft |
| Beam | 15.83 ft |
| Draft | 10.33 ft/ 5.16 ft min |
| Displacement | 46,000 lb |
| Ballast | 12,001.4 lb |
| Hull speed1.34·√LWL | 8.8 kn |
Rig & Sails
| Iforetriangle height | 58 ft |
| Jforetriangle base | 17.25 ft |
| Pmainsail luff | 50 ft |
| Emainsail foot | 16.5 ft |
| PYmizzen luff | 38 ft |
| EYmizzen foot | 11 ft |
| FLforestay | 17.3 ft |
| Mainsail | 945.8 sq ft |
| Jib (100%) | 500.3 sq ft |
| Spinnaker | 850.4 sq ft |
About the MORGAN OUT ISLAND 51
Also available with fixed keel. Later (1981) became the MORGAN OUT ISLAND 512.
The Morgan Out Island 51 is a robust, heavy-displacement cruising ketch designed by Jack Cory and Charles Morgan, built by Morgan Yacht Corp. in the USA from 1974–1981. With a displacement of 46000.0 lb and a comfort ratio of 39.45, this vessel is engineered for stability and seakeeping rather than speed.
- Best for:
- This boat is ideally suited for experienced coastal and offshore cruisers who prioritize comfort, interior volume, and heavy-weather security over high-performance sailing.
- Bluewater capability:
- With a low capsize ratio of 1.77 and a high D/L ratio of 258.29, the Out Island 51 is well-regarded for offshore passage-making, offering exceptional stability and motion comfort in heavy seas.
- Comparables:
- Comparable vessels include the Morgan 46 and 53, as well as the Tartan 4400, due to their shared era, heavy displacement characteristics, and focus on safe, comfortable bluewater cruising.
Performance
Estimated Value
Limited DataAsking price by model year
6 listings · boat years 1975–1981 · median $140,000
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 51.5ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
3 reported issues across 2 systems for the MORGAN OUT ISLAND 51, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a MORGAN OUT ISLAND 51? 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 3 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 MORGAN OUT ISLAND 51?
We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.
Brands sometimes mentioned for this model: Perkins, Kubota — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the MORGAN OUT ISLAND 51
Checking eBay for sails sized to this boat's rig…