SEA-LION 18
Specifications
Hull
| LOA | 18 ft |
| LWL | 17.16 ft |
| Beam | 7.5 ft |
| Draft | 2 ft/ 0.42 ft min |
| Displacement | 300 lb |
| Hull speed1.34·√LWL | 5.6 kn |
About the SEA-LION 18
Designed to the newly formulated USYRU A Class catamaran rule. Received attention for performance on the race course at the time and at least 5 were built. Replaced with the Hubbard designed A-LION. More information has been promised.
Performance
Pricing
We don't have market pricing data for the SEA-LION 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 18ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the SEA-LION 18yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.
Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.
Own a SEA-LION 18? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.
Similar Sailboats
Which engine powers your SEA-LION 18?
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.
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the SEA-LION 18
Checking eBay for sails sized to this boat's rig…