J/27

Class symbol
Development
Designer	Rod Johnstone
Year	1983
Design	One-Design
Name	J/27
Boat
Crew	4 or 5
Draft	1.49 m (4 ft 11 in)
Hull
Type	Monohull
Construction	GRP
Hull weight	1,724 kg (3,801 lb)
LOA	8.38 m (27.5 ft)
LWL	7.16 m (23.5 ft)
Beam	2.59 m (8 ft 6 in)
Hull appendages
Keel/board type	Fixed 694 kg (1,530 lb)
Rig
Rig type	Fractional rig
Sails
Mainsail area	19.16 m2 (206.2 sq ft)
Jib/genoa area	14.63 m2 (157.5 sq ft)
Spinnaker area	52.68 m2 (567.0 sq ft)
Upwind sail area	33.8 m2 (364 sq ft)
Racing
PHRF	120
[edit on Wikidata]

The J/27 is a keelboat built by J/Boats. It is both a weekend cruiser and a One-Design racing class with strict class rules. Designed with a low, heavy keel with a generous sail area, the boat gives good handling in both light and strong winds, but struggles in moderate winds.^[1][2]

Design

The J/27 is a Fractional rigged sloop designed by Rod Johnstone and built by Tillotson Pearson, Inc. between 1983 and 1992. 211 boats were built before it was replaced by the J/80.

A large cockpit and open decks allows crew to move around easily, and the Fractional rig means that sail costs are kept down.

The boat has four bunks, and a galley with a standard water capacity of five gallons. Below decks headroom is 4.5 feet (1.4 m). The boat has an outboard engine placed on the transom (port side).

Other Specifications

• I: 30.00 feet (9.14 m)
• ISP: 30.00 feet (9.14 m)
• J: 10.50 feet (3.20 m)
• P: 33.00 feet (10.06 m)
• E: 12.50 feet (3.81 m)
• SPL: 10.50 feet (3.20 m)
• Displacement to length ratio (Disp/L)= 139.
• Sail Area to displacement ratio (SA/Dspl)= 24.^[3]