Seafarer 31 Mark I

Seafarer 31 Mark I Sloop

Development
Designer	William H. Tripp Jr., McCurdy & Rhodes
Location	United States
Year	1968
Builder(s)	Seafarer Yachts
Role	Racer-Cruiser
Name	Seafarer 31 Mark I Sloop
Boat
Displacement	8,750 lb (3,969 kg)
Draft	4.50 ft (1.37 m)
Hull
Type	monohull
Construction	fiberglass
LOA	31.16 ft (9.50 m)
LWL	22.33 ft (6.81 m)
Beam	8.83 ft (2.69 m)
Engine type	Universal Atomic 4 30 hp (22 kW) gasoline engine
Hull appendages
Keel/board type	fin keel
Ballast	3,400 lb (1,542 kg)
Rudder(s)	skeg-mounted rudder
Rig
Rig type	Bermuda rig
I foretriangle height	36.50 ft (11.13 m)
J foretriangle base	11.70 ft (3.57 m)
P mainsail luff	31.20 ft (9.51 m)
E mainsail foot	13.00 ft (3.96 m)
Sails
Sailplan	masthead sloop
Mainsail area	202.80 sq ft (18.841 m2)
Jib/genoa area	213.53 sq ft (19.838 m2)
Total sail area	416.33 sq ft (38.678 m2)
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]}

Production

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]}

Design

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 8,750 lb (3,969 kg) and carries 3,400 lb (1,542 kg) of lead ballast, while the yawl model displaces 8,750 lb (3,969 kg) and carries 3,350 lb (1,520 kg) of lead ballast. ^{[1] [2] [5] [6]}

The boat has a draft of 4.50 ft (1.37 m) with the standard keel. ^{[1] [2] [5] [6]}

The boat is fitted with a Universal Atomic 4 30 hp (22 kW) 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 6.33 kn (11.72 km/h). ^[5]

See also

• List of sailing boat types

References

1. McArthur, Bruce (2022). "Seafarer 31 MKI sailboat". sailboatdata.com. Archived from the original on 7 January 2022. Retrieved 7 January 2022.
2. McArthur, Bruce (2022). "Seafarer 31 MKI Yawl sailboat". sailboatdata.com. Archived from the original on 7 January 2022. Retrieved 7 January 2022.
3. McArthur, Bruce (2022). "William H. Tripp Jr". sailboatdata.com. Archived from the original on 30 December 2021. Retrieved 7 January 2022.
4. McArthur, Bruce (2022). "McCurdy & Rhodes". sailboatdata.com. Archived from the original on 24 December 2021. Retrieved 7 January 2022.
5. Sea Time Tech, LLC (2022). "Seafarer 31 MKI". sailboat.guide. Retrieved 7 January 2022.
6. Sea Time Tech, LLC (2022). "Seafarer 31 MKI Yawl". sailboat.guide. Archived from the original on 7 January 2022. Retrieved 7 January 2022.
7. McArthur, Bruce (2022). "Seafarer 31 MKII sailboat specifications and details". sailboatdata.com. Archived from the original on 7 January 2022. Retrieved 7 January 2022.
8. McArthur, Bruce (2022). "Seafarer Yachts". sailboatdata.com. Archived from the original on 24 December 2021. Retrieved 7 January 2022.
9. Sea Time Tech, LLC (2022). "Seafarer Yachts". sailboat.guide. Archived from the original on 24 December 2021. Retrieved 7 January 2022.