The International 21 is a 21.5ft masthead sloop designed by Helsen and built in fiberglass since 1976.
The International 21 is a light sailboat which is a good performer. It is reasonably stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.
Main features
| Model | International 21 | ||
| Length | 21.50 ft | ||
| Beam | 7.33 ft | ||
| Draft | 1.16 ft | ||
| Country | ?? | ||
| Estimated price | $ 0 | ?? |
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Ratios
| Sail area / displ. | 19.32 | ||
| Ballast / displ. | 22.86 % | ||
| Displ. / length | 150.10 | ||
| Comfort ratio | 10.24 | ||
| Capsize | 2.44 |
Hull
| Hull type | Monohull swing keel | ||
| Construction | Fiberglass | ||
| Waterline length | 17.33 ft | ||
| Maximum draft | 4 ft | ||
| Displacement | 1750 lbs | ||
| Ballast | 400 lbs | ||
| Hull speed | 5.58 knots |
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Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 175 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 | ?? | ||
| Designer | Helsen | ||
| First built | 1976 | ||
| Last built | 0 | ?? | |
| Number built | 0 | ?? |
International 21 for sale elsewhere on the web:
