Argentina The passage of Curupayty was an allied naval operation carried out on 15 August 1867, in the context of the Paraguayan War, which aimed to force the passage of Brazilian battleships against the defensive fortifications installed in the Curupayty fort on the banks of the Paraguay river.

In the other channel, the risk of stranding was very great; in addition, a Paraguayan defector claimed that torpedoes had been placed there recently.

While the wooden vessels of the imperial navy suppressed fire, the warships crossed Curupaiti.

According to Commander Kennedy, the accident with the Tamandaré forced Colombo, who was behind, to stop the engines to avoid a collision between the boats.

Colombo approached the Paraguayan cannons, which caused serious damage before he could leave his dangerous position.