The fourth phase is the assessment, during which the candidates (of which the maximum is six) show their ability to command a submarine unaided during war-like conditions.
第4段階は評価であって、候補生たち（最大でも6人）は戦時と同様の条件下で助けを受けることなく潜水艦を指揮する能力を示さなければならない。