ALOA 21
Specifications
Hull
| LOA | 20.67 ft |
| LWL | 17.88 ft |
| Beam | 8.04 ft |
| Draft | 3.28 ft |
| Displacement | 1,323 lb |
| Ballast | 661 lb |
| Hull speed1.34·√LWL | 5.7 kn |
About the ALOA 21
Designed by J.M. L´Hermenier and built by Aloa Marine (FRA)/SEB Marine, the Aloa 21 is a compact, lightweight sloop with 400 hulls constructed between 1969 and 1979. Its low displacement of 1323.0 lb and high sail area-to-displacement ratio of 24.88 define it as a nimble, performance-oriented day sailor rather than a heavy cruiser.
- Best for:
- This boat is ideal for single-handers or couples seeking a trailerable, easy-to-handle day sailor for protected coastal waters. Its light weight and manageable size make it suitable for owners with limited storage space who prioritize ease of launch and retrieval over long-range cruising.
- Bluewater capability:
- With a low displacement of 1323.0 lb and a capsize ratio of 2.93, the Aloa 21 is not designed for offshore bluewater passage-making. Its light construction and fin keel are optimized for coastal day sailing, lacking the mass and stability required for heavy weather ocean crossings.
- Comparables:
- Comparable boats include the O'Day 22 and the Catalina 22, which share similar beam dimensions and trailerable footprints. These vessels are comparable because they target the same market of entry-level sailors looking for affordable, low-maintenance day sailers from the same era.
Performance
Pricing
We don't have market pricing data for the ALOA 21 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 20.67ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
1 reported issues across 1 systems for the ALOA 21, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a ALOA 21? 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 1 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 ALOA 21?
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 — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the ALOA 21
Checking eBay for sails sized to this boat's rig…