| Seafarer 31 Mark I Sloop | |
| Designer: | William H. Tripp Jr., McCurdy & Rhodes |
| Location: | United States |
| Year: | 1968 |
| Builder: | Seafarer Yachts |
| Role: | Racer-Cruiser |
| Draft: | 4.5feet |
| Displacement: | 87500NaN0 |
| Hull Type: | monohull |
| Construction: | fiberglass |
| Loa: | 31.16feet |
| Lwl: | 22.33feet |
| Beam: | 8.83feet |
| Engine: | Universal Atomic 4 300NaN0 gasoline engine |
| Keel Type: | fin keel |
| Ballast: | 34000NaN0 |
| Rudder Type: | skeg-mounted rudder |
| Rig Type: | Bermuda rig |
| I: | 36.5feet |
| J: | 11.7feet |
| P: | 31.2feet |
| E: | 13feet |
| Sailplan: | masthead sloop |
| Sailarea Main: | 202.8square feet |
| Sailarea Headsail: | 213.53square feet |
| Sailarea Total: | 416.33square feet |
| Successor: | Seafarer 31 Mark II |
The Seafarer 31 Mark I is an American sailboat that was designed by William H. Tripp Jr., with design development by McCurdy & Rhodes, as a racer-cruiser and first built in 1968.[1] [2] [3] [4] [5] [6]
The design was originally marketed by the manufacturer as the Seafarer 31, but is now usually referred to as the Seafarer 31 Mark I to differentiate it from the unrelated McCurdy and Rhodes-designed 1974 Seafarer 31 Mark II.[1] [2] [5] [6] [7]
The design was built by Seafarer Yachts in the United States, starting in 1968, but it is now out of production. Boats were offered complete or in kit form under the name Seacraft Kits for amatur-completion.[1] [2] [5] [6] [8] [9]
The Seafarer 31 Mark I is a recreational keelboat, built predominantly of fiberglass with a solid hull and balsa-cored deck, with wood trim. It has a masthead sloop rig wkith an optional tall mast or an optional yawl rig. The hull has a spooned, raked stem; a raised counter, angled transom, a skeg-mounted rudder controlled by a tiller and a fixed fin keel. The sloop model displaces 87500NaN0 and carries 34000NaN0 of lead ballast, while the yawl model displaces 87500NaN0 and carries 33500NaN0 of lead ballast.[1] [2] [5] [6]
The boat has a draft of 4.5feet with the standard keel.[1] [2] [5] [6]
The boat is fitted with a Universal Atomic 4 300NaN0 gasoline engine for docking and maneuvering.[1] [2] [5] [6]
The design has sleeping accommodation for four people, with a double "V"-berth in the bow cabin and two straight settee berths in the main cabin. The galley is located on the starboard side just aft of the bow cabin. The galley is equipped with a two-burner stove, an ice box and a double sink. The head is located just aft of the bow cabin on the port side.[1] [2] [5] [6]
The design has a hull speed of 6.33kn.[5]