FIRST 405 (BENETEAU)
Specifications
Hull
| LOA | 40.67 ft |
| LWL | 35.5 ft |
| Beam | 12.75 ft |
| Draft | 7.2 ft |
| Shoal Draft | 5.5 ft(1.69 m) |
| Displacement | 18,500 lb |
| Ballast | 7,694.2 lb |
| Hull speed1.34·√LWL | 8.0 kn |
Rig & Sails
| Iforetriangle height | 52.1 ft |
| Jforetriangle base | 14.8 ft |
| Pmainsail luff | 46.2 ft |
| Emainsail foot | 15 ft |
About the FIRST 405 (BENETEAU)
Designed by Jean Berret and built by Beneteau (FRA), the First 405 is a classic 1986 masthead sloop with a production run of 1986. With a displacement of 18500.0 lb and a beam of 12.75 ft, this vessel represents a significant era of French production cruising yachts.
- Best for:
- This boat suits coastal cruisers and those seeking a spacious, comfortable liveaboard platform, evidenced by the high prevalence of solar panel (138), watermaker (96), and davit (122) installations among owners.
- Bluewater capability:
- With a capsize ratio of 1.93 and a comfort ratio of 26.01, the boat is moderately stable for offshore passages, though its fin keel and 7.2 ft max draft limit access to shallow anchorages.
- Comparables:
- Comparable to other late-80s European production cruisers like the Beneteau Oceanis 40 or Jeanneau Sun Odyssey 42, sharing similar beam-to-length ratios and interior volume priorities over pure performance.
Performance
ORC Performance Data(8 certificates)
Measured performance data from ORC (Offshore Racing Congress) certificates.
Polar Diagram
Boat speed (kn) vs. true wind angle. Source: ORC
Racing Ratings
Triple Number
ORC Measured
Sail Areas (ORC)
Speed Table (kn)
| TWA \ TWS | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|---|
| 52° | 3.3 | 4.6 | 5.5 | 6.2 | 6.7 | 6.9 | 7.0 | 7.2 | 7.1 |
| 60° | 3.6 | 4.8 | 5.8 | 6.4 | 6.9 | 7.1 | 7.3 | 7.4 | 7.4 |
| 75° | 3.7 | 5.0 | 6.0 | 6.7 | 7.0 | 7.3 | 7.5 | 7.7 | 7.8 |
| 90° | 3.9 | 5.3 | 6.4 | 7.0 | 7.3 | 7.5 | 7.6 | 7.9 | 8.1 |
| 110° | 4.0 | 5.4 | 6.6 | 7.2 | 7.6 | 7.9 | 8.1 | 8.4 | 8.6 |
| 120° | 3.8 | 5.3 | 6.4 | 7.1 | 7.5 | 7.9 | 8.2 | 8.7 | 9.1 |
| 135° | 3.4 | 4.7 | 5.9 | 6.8 | 7.3 | 7.7 | 8.0 | 8.6 | 9.5 |
| 150° | 2.8 | 4.0 | 5.1 | 6.0 | 6.8 | 7.2 | 7.5 | 8.1 | 8.7 |
| Beat VMG | 2.1 | 3.0 | 3.7 | 4.2 | 4.6 | 4.8 | 4.9 | 5.0 | 4.9 |
| Run VMG | 2.4 | 3.5 | 4.4 | 5.2 | 5.9 | 6.3 | 6.7 | 7.3 | 7.8 |
Pricing
We don't have market pricing data for the FIRST 405 (BENETEAU) 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 40.67ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
29 reported issues across 9 systems for the FIRST 405 (BENETEAU), compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a FIRST 405 (BENETEAU)? 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 29 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 FIRST 405 (BENETEAU)?
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, Perkins — is it one of these?
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Used sails that fit the FIRST 405 (BENETEAU)
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