LAPWORTH 40
Specifications
Hull
| LOA | 40 ft |
| LWL | 28 ft |
| Beam | 11 ft |
| Draft | 5.5 ft |
| Displacement | 17,800 lb |
| Hull speed1.34·√LWL | 7.1 kn |
Rig & Sails
| Iforetriangle height | 45.5 ft |
| Jforetriangle base | 15.5 ft |
| Pmainsail luff | 39 ft |
| Emainsail foot | 16.2 ft |
| FLforestay | 15.5 ft |
| Mainsail | 693.8 sq ft |
| Jib (100%) | 352.6 sq ft |
| Spinnaker | 599.5 sq ft |
About the LAPWORTH 40
The Lapworth 40 is a rare, heavy-displacement cruising sloop designed by C. William Lapworth and built in 1960. With a production run of only one known hull, this vessel represents a unique example of mid-century American yacht design, characterized by its substantial 17800.0 lb displacement and 11.0 ft beam.
- Best for:
- This boat is best suited for experienced coastal cruisers who prioritize comfort and stability over speed, as indicated by its high Comfort ratio of 35.71 and D/L ratio of 361.99. It appeals to owners seeking a distinctive, low-maintenance classic with a proven track record of reliability.
- Bluewater capability:
- The Lapworth 40 demonstrates strong offshore suitability with a low Capsize ratio of 1.69 and a robust 17800.0 lb displacement, suggesting excellent stability and safety in heavy weather conditions.
- Comparables:
- Comparable boats include the Tartan 40 and O'Day 40, which share similar beam dimensions and heavy displacement characteristics from the same era. These vessels are comparable due to their focus on comfortable, stable cruising rather than racing performance.
Performance
Pricing
We don't have market pricing data for the LAPWORTH 40 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 40ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
2 reported issues across 2 systems for the LAPWORTH 40, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a LAPWORTH 40? 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 2 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 LAPWORTH 40?
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: Universal, Westerbeke — is it one of these?
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Used sails that fit the LAPWORTH 40
Checking eBay for sails sized to this boat's rig…