The S2 27 is a recreational keelboat, built predominantly of balsa-cored AME 4000 resin fiberglass, with wood trim. It has a masthead sloop rig, a raked stem, a plumb transom, a transom-hung rudder controlled by a tiller and a fixed fin keel. It displaces 5,000 lb (2,268 kg) and carries 2,100 lb (953 kg) of ballast.[1][3]
The boat has a draft of 4.75 ft (1.45 m) with the standard keel and is fitted with an inboard engine for docking and maneuvering.[1][3]
The design has sleeping accommodation for four people, with a double "V"-berth in the bow cabin, an L-shaped settee and a straight settee in the main cabin. The galley is located on the port side just forward of the companionway ladder. The galley is U-shaped and is equipped with a two-burner stove, an ice box and a sink. The head is located at the companionway on the starboard side. Cabin headroom is 72 in (183 cm).[1][3][5]
For sailing downwind the design may be equipped with a symmetrical spinnaker.[1][3]
The design has a hull speed of 6.47 kn (11.98 km/h).[3]