NEPTUNIAN 33
Specifications
Hull
| LOA | 32.74 ft |
| LWL | 25 ft |
| Beam | 10 ft |
| Draft | 4 ft |
| Displacement | 13,664 lb |
| Ballast | 6,046.3 lb |
| Hull speed1.34·√LWL | 6.7 kn |
About the NEPTUNIAN 33
The NEPTUNIAN 33 is an aft cockpit version of the otherwise identical NEPTUNE 33. It was available with either a sloop (SA: 452 sq. ft.) or ketch rig. Hulls were molded by Tyler and finished by J. M. Shuttlewood & Son Ltd. (UK).
The Neptunian 33 is a robust, full-keel ketch designed by Alan Buchanan and built by Tyler Boat Company (UK) in 1972. With a displacement of 13664.0 lb and a comfort ratio of 35.99, this vessel is characterized by its heavy, stable construction and traditional layout, though the exact number of hulls built remains unverified.
- Best for:
- This boat is best suited for conservative coastal cruisers and those seeking a stable, comfortable platform for shorthanded cruising, given its low capsize ratio of 1.68 and manageable sail area-to-displacement ratio of 13.77.
- Bluewater capability:
- The Neptunian 33 demonstrates strong bluewater capability due to its high displacement of 13664.0 lb, low capsize ratio of 1.68, and full/long keel design, which provide exceptional stability and tracking in heavy weather.
- Comparables:
- Comparable vessels include the Hallberg-Rassy 33 and the Tartan 33, as they share similar full-keel, heavy-displacement characteristics and ketch or sloop configurations from the early 1970s that prioritize seakeeping over raw speed.
Direct variant of the NEPTUNIAN 33
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
Estimated Value
Low ConfidenceAsking price by model year
5 listings · boat years 1975–1982 · median $33,000
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 32.74ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
10 reported issues across 5 systems for the NEPTUNIAN 33, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a NEPTUNIAN 33? 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 10 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 NEPTUNIAN 33?
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: Yanmar, Bukh, Perkins — is it one of these?
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Used sails that fit the NEPTUNIAN 33
Checking eBay for sails sized to this boat's rig…