The Joker s30 is a 30.31ft masthead sloop designed by Rolf Magnusson and built in fiberglass between 1968 and 1972.
The Joker s30 is a moderate weight sailboat which is a reasonably good performer. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is originally small. There is a short water supply range.
Main features
| Model | Joker s30 | ||
| Length | 30.31 ft | ||
| Beam | 9.71 ft | ||
| Draft | 5.41 ft | ||
| Country | ?? | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 16.24 | ||
| Ballast / displ. | 46.70 % | ||
| Displ. / length | 280.06 | ||
| Comfort ratio | 21.84 | ||
| Capsize | 2.01 | 
Hull
| Hull type | Monohull fin keel with rudder on skeg | ||
| Construction | Fiberglass | ||
| Waterline length | 22.64 ft | ||
| Maximum draft | 5.41 ft | ||
| Displacement | 7280 lbs | ||
| Ballast | 3400 lbs | ||
| Hull speed | 6.38 knots | 
Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 380 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 | 20 gals | 
Accommodations
| Water capacity | 75 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | ?? | ||
| Designer | Rolf Magnusson | ||
| First built | 1968 | ||
| Last built | 1972 | ||
| Number built | 0 | ?? | 
 
                                                     
                                         
                                         
                                         
                                         
                                         
                                        