sentences:  7 RNAS flew its first missions on 3 February 1917, with four Short Bombers setting out against the Brugge (Bruges) docks.In April of that year it re-equipped with Handley Page O/100s, using them for night raids, including attacks against rail targets and ammunition dumps during the Second Battle of Ypres.The squadron then split into two in July 1917, with eight O/100s forming the initial equipment of 7A Squadron - later becoming 14 Squadron RNAS - while 7 Squadron continued with 10 O/100s.