NACRA INTER 18
Specifications
Hull
| LOA | 18.1 ft |
| LWL | 18.1 ft |
| Beam | 8.5 ft |
| Draft | 4.33 ft |
| Displacement | 397 lb |
| Material | 18’ 1”5.52 m |
| Hull speed1.34·√LWL | 5.7 kn |
Rig & Sails
| Mainsail | 183 sq ft |
Accommodation
| CE category | 693 |
About the NACRA INTER 18
Designed to International 18 rule Mainsail: 183 sq.ft. Jib area: 37 or 45 sq.ft. Assym: 204 or 226 sq.ft. Carbon daggers and rudders. Twin trapeze. Built at Performance Catamarans in California (USA) but first introduced in France. Not the same as NACRA F18/FORMULA 18 (2003).
Designed by Morrelli & Melvin and built by Performance Catamarans (USA) from 1995–2005, the Nacra Inter 18 is a high-performance racing catamaran with a displacement of 397.0 lb. While the exact build count is unknown, the fleet is characterized by its fractional sloop rig with a rotating spar and a beam of 8.5 ft.
- Best for:
- This boat is best suited for competitive day-sailors and club racers who prioritize speed and agility over cruising comfort, given its low comfort ratio of 1.96 and lightweight construction.
- Bluewater capability:
- With a capsize ratio of 4.63 and a displacement of 397.0 lb, this vessel is not designed for offshore bluewater cruising and is strictly intended for protected coastal racing.
- Comparables:
- Comparable boats include other Morrelli & Melvin designs from the same era, such as the Nacra 16 or larger Nacra models, as well as other lightweight racing catamarans like the A-Cat or Hobie 16, due to their shared focus on planing performance and fractional rigs.
Performance
Pricing
We don't have market pricing data for the NACRA INTER 18 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 18.1ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
1 reported issues across 1 systems for the NACRA INTER 18, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a NACRA INTER 18? 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
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