Sęp sailed into the naval port of Hel a few days before the war started, commanded by kmdr ppor. Władysław Salamon. On 1 September, the first day the war, the submarine took up her patrol sector in accordance with the Worek Plan.
The submarine Sęp entered the harbor of Hel a few days prior to the start of the war, commanded by kmdr ppor. Władysław Salamon. On 1 September, the first day of the conflict, the submarine began its patrol duties according to the Worek Plan.