CSY 51
Specifications
Hull
| LOA | 51 ft |
| LWL | 42.25 ft |
| Beam | 15 ft |
| Draft | 5.5 ft |
| Displacement | 35,000 lb |
| Ballast | 16,299.5 lb |
| Hull speed1.34·√LWL | 8.7 kn |
Rig & Sails
| Iforetriangle height | 57.5 ft |
| Jforetriangle base | 21.7 ft |
| Pmainsail luff | 50.5 ft |
| Emainsail foot | 18 ft |
| FLforestay | 21.7 ft |
| Mainsail | 1,114.7 sq ft |
| Jib (100%) | 623.9 sq ft |
| Spinnaker | 1,060.6 sq ft |
About the CSY 51
Similar to ENDEAVOUR 51.
The CSY 51 is a substantial cruising yacht designed by Johan Valentijen and built by Endeavour Yacht Corp. (USA) in 1985. With a displacement of 35000.0 lb and a beam of 15.0 ft, it represents a significant investment in comfort and stability, though the exact total hulls built remains unverified in available data.
- Best for:
- This vessel is best suited for experienced coastal cruisers and those seeking a spacious, stable platform for extended offshore passages, given its heavy displacement and wide beam.
- Bluewater capability:
- With a displacement of 35000.0 lb, a capsize ratio of 1.84, and a comfort ratio of 32.73, the CSY 51 is well-suited for bluewater cruising, offering excellent stability and motion comfort in heavy seas.
- Comparables:
- Comparable boats include the Cal 50 and the Tartan 4400, as they share similar eras, heavy displacement characteristics, and a focus on comfortable, safe cruising over high-performance racing.
Direct variant of the CSY 51
Near-identical models — same hull, builder and designer, re-badged or lightly changed. Specs and owner-reported issues are typically shared across the group, so a sister model's page may carry detail this one doesn't.
Performance
Pricing
We don't have market pricing data for the CSY 51 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 51ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the CSY 51yet 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 CSY 51? 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
Which engine powers your CSY 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.
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the CSY 51
Checking eBay for sails sized to this boat's rig…