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S2 5.5
Development
Designer	Don Wennersten
Location	United States
Year	1982
No. built	70
Builder(s)	S2 Yachts
Role	Racer-Day sailer
Name	S2 5.5
Boat
Displacement	600 lb (272 kg)
Draft	4.00 ft (1.22 m) with centerboard down
Hull
Type	monohull
Construction	fiberglass
LOA	18.00 ft (5.49 m)
LWL	16.25 ft (4.95 m)
Beam	7.67 ft (2.34 m)
Hull appendages
Keel/board type	centerboard
Rudder(s)	transom-mounted rudder
Rig
Rig type	Bermuda rig
I foretriangle height	19.50 ft (5.94 m)
J foretriangle base	6.00 ft (1.83 m)
P mainsail luff	23.50 ft (7.16 m)
E mainsail foot	10.00 ft (3.05 m)
Sails
Sailplan	fractional rigged sloop
Mainsail area	117.50 sq ft (10.916 m2)
Jib/genoa area	58.50 sq ft (5.435 m2)
Total sail area	176.00 sq ft (16.351 m2)
	[edit on Wikidata]

The S2 5.5, also called the Grand Slam 5.5, is an American sailing dinghy that was designed by Don Wennersten as a racer and day sailer and first built in 1982. The designation indicates the approximate length overall in meters.^[1]^[2]

The design was the smallest boat S2 Yachts produced and its only dingy model.^[3]^[4]

Production

The design was built by S2 Yachts in Holland, Michigan, United States from 1982 until 1983, with 70 boats completed, but it is now out of production.^[1]^[2]^[3]^[4]

Design

The S2 5.5 is a recreational sailboat, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig, a raked stem, a plumb transom, a transom-hung rudder controlled by a tiller and a retractable centerboard. It displaces 600 lb (272 kg) and has a small cuddy cabin for stowage.^[1]^[2]

The boat has a draft of 4.00 ft (1.22 m) with the centerboard extended. With it retracted the boat can operate in shallow water, be beached or ground transported on a trailer.^[1]^[2]

The design has a hull speed of 5.4 kn (10.0 km/h).^[2]

References

^ ^a ^b ^c ^d McArthur, Bruce (2021). "S2 5.5 sailboat". sailboatdata.com. Archived from the original on 5 December 2021. Retrieved 5 December 2021.
^ ^a ^b ^c ^d ^e Sea Time Tech, LLC (2021). "S2 5.5". sailboat.guide. Archived from the original on 5 December 2021. Retrieved 5 December 2021.
^ ^a ^b McArthur, Bruce (2021). "S2 Yachts (USA) 1974 - 1989". sailboatdata.com. Archived from the original on 17 October 2018. Retrieved 5 December 2021.
^ ^a ^b Sea Time Tech, LLC (2021). "S2 Yachts". sailboat.guide. Archived from the original on 30 November 2021. Retrieved 5 December 2021.