1898(Johann Wolkersdorfer JW-77)
- Type: Arctic & Antarctic exploration vessel
- Displacement: 402 tons
- Dimensions: 127'8" x 34' x 15'
- Machinery: Triple expansion steam engine, 220 hp = 14 knots
- Passengers: 16
- Builder: Colin Archer, Larvik Norway, 1892
- Service: Specially built of wood to survive being frozen in pack ice, with a shape that would "float" up as the ice formed. Commissioned by Fridtjof Nansen from the shipwright Colin Archer. Used in a series of expeditions of the Arctic and Antarctic by the Norwegian explorers Nansen (1893-96), Otto Sverdrup (1898-1902), and Roald Amundsen (1910-1912).
Preserved and on display at the Fram Museum, Oslo.