HUMBOLDT 30
Specifications
Hull
| LOA | 30 ft |
| LWL | 26.67 ft |
| Beam | 10.5 ft |
| Draft | 5.5 ft |
| Displacement | 5,050 lb |
| Ballast | 2,222 lb |
| Hull speed1.34·√LWL | 6.9 kn |
Rig & Sails
| Iforetriangle height | 37.5 ft |
| Jforetriangle base | 11.5 ft |
| Pmainsail luff | 41.5 ft |
| Emainsail foot | 13.8 ft |
| FLforestay | 11.5 ft |
| Mainsail | 524.9 sq ft |
| Jib (100%) | 215.6 sq ft |
| Spinnaker | 366.6 sq ft |
About the HUMBOLDT 30
Also called HUMBOLT BAY 30.
The Humboldt 30 is a rare, lightweight fractional sloop designed by Gary Mull and Jim Donovan, with only 6 hulls built between 1982 and 1984 by Humboldt Bay Yachts. Its extremely low production volume makes it a unique collector's item rather than a common market presence.
- Best for:
- This boat suits experienced sailors seeking a nimble, performance-oriented coastal cruiser who value the distinctive Mull/Donovan design lineage over mass-market availability.
- Bluewater capability:
- With a low displacement of 5050.0 lb and a capsize ratio of 2.45, it is better suited for protected coastal cruising than heavy offshore passage-making.
- Comparables:
- Comparable to other late-70s/early-80s performance cruisers like the Cal 30 or O'Day 30, but distinguished by its significantly lighter displacement of 5050.0 lb and fractional rig.
Performance
Pricing
We don't have market pricing data for the HUMBOLDT 30 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 30ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
5 reported issues across 3 systems for the HUMBOLDT 30, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a HUMBOLDT 30? 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 5 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
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Used sails that fit the HUMBOLDT 30
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