A Q-jirgin ruwa zai ze zama mai sauki manufa, amma a gaskiya dauke boye makamai. A hankula Q-jirgin ruwa zai yi kama da wani tramp steamer sailing kadai a cikin wani yanki inda wani U-jirgin ruwa da aka ruwaito da ake aiki. Da alama ya zama manufa dace domin U-jirgin ruwa ta bene, a Q-jirgin ruwa zai iya karfafa U-jirgin ruwa kyaftin ya yi surface harin maimakon yin amfani da daya daga cikin iyaka yawan torpedoes.
wani jirgin ruwa mai tururi