US1
Specifications
Hull
| LOA | 15.42 ft |
| LWL | 13.5 ft |
| Beam | 4.58 ft |
| Draft | 2.5 ft/ 0.58 ft min |
| Displacement | 190 lb |
| Material | 16’ 2”4.94 m |
| Hull speed1.34·√LWL | 4.9 kn |
Accommodation
| CE category | About15 800€(2020) |
About the US1
Ralph Kuppersmith was founder of Advance Sailboat Co.. It is thought that this was a WINDMILL hull with a cat rig intended for single-handers.
Performance
Pricing
We don't have market pricing data for the US1 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 15.42ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the US1yet 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 US1? 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 US1?
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 US1
Checking eBay for sails sized to this boat's rig…