As the only one professional with sailing experience, Lightning was honored to be the navigator.
In fact, she was also very interested in the weirdly-shaped, peculiar barge. Although it looked very ugly, it had all of the basic parts that a ship should have. However, she was unsure about whether it would sail. After all, she was mostly just a bystander on the sea as her father always refused her requests of steering or hoisting the sail.
In accordance with the tradition, Lightning smashed a bottle of ale on the bow and ordered to raise the sail for the barge's maiden voyage. Carter, as the commander, surely did not want the little girl to take over the position and thus, the knight always followed with the same command after her.