Gem 550


The Gem 550 is a 18.04ft fractional sloop designed by Rob Humphreys and built in fiberglass by Central Boating Services since 1976.

40 units have been built.

The Gem 550 is a light sailboat which is a very high performer. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.

Gem 550 for sale elsewhere on the web:

Main features


Model Gem 550
Length 18.04 ft
Beam 7.91 ft
Draft 0.75 ft
Country South Africa
Estimated price $ 0 ??

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Ratios


Sail area / displ. 29.13
Ballast / displ. 34.64 %
Displ. / length 110.44
Comfort ratio 6.59
Capsize 3.03

Hull


Hull type Monohull swing keel
Construction Fiberglass
Waterline length 16.67 ft
Maximum draft 3.28 ft
Displacement 1146 lbs
Ballast 397 lbs
Hull speed 5.47 knots

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Rigging


Rigging Fractional Sloop
Sail area (100%) 199 sq.ft
Air draft 0 ft ??
Sail area fore 0 sq.ft ??
Sail area main 0 sq.ft ??
I 0 ft ??
J 0 ft ??
P 0 ft ??
E 0 ft ??

Engine


Nb engines 1
Total power 0 HP
Fuel capacity 0 gals

Accommodations


Water capacity 0 gals
Headroom 0 ft
Nb of cabins 0
Nb of berths 0
Nb heads 0

Builder data


Builder Central Boating Services
Designer Rob Humphreys
First built 1976
Last built 0 ??
Number built 40