Mercury 18
| Development | |
|---|---|
| Designer | Ernest Nunes |
| Location | United States |
| Year | 1939 |
| No. built | 1060 (1994) |
| Builder(s) | Ernest Nunes W. D. Schock Corp Moore Sailboats |
| Role | One-design racer |
| Name | Mercury 18 |
| Boat | |
| Crew | two |
| Displacement | 1,100 lb (499 kg) |
| Draft | 3.08 ft (0.94 m) |
| Hull | |
| Type | Monohull |
| Construction | Plywood or fiberglass |
| LOA | 18.00 ft (5.49 m) |
| LWL | 13.00 ft (3.96 m) |
| Beam | 5.33 ft (1.62 m) |
| Hull appendages | |
| Keel/board type | fin keel |
| Ballast | 635 lb (288 kg) |
| Rudder(s) | keel-mounted rudder |
| Rig | |
| Rig type | Bermuda rig |
| I foretriangle height | 18.40 ft (5.61 m) |
| J foretriangle base | 7.30 ft (2.23 m) |
| P mainsail luff | 21.92 ft (6.68 m) |
| E mainsail foot | 9.08 ft (2.77 m) |
| Sails | |
| Sailplan | Fractional rigged sloop |
| Mainsail area | 99.52 sq ft (9.246 m2) |
| Jib/genoa area | 67.16 sq ft (6.239 m2) |
| Total sail area | 166.68 sq ft (15.485 m2) |
The Mercury 18, sometimes just referred to as a Mercury, is an American sailboat that was designed by Ernest Nunes as a one design racer and first built in 1939. The boat was one of the first one-design sailboat classes designed for plywood construction.
The design is sometimes confused with the unrelated Sparkman & Stephens 1940 Cape Cod Mercury design.