the oj entered service with vs-b and vs-b in  mainly for use on omaha class light cruisers some ojs were used by reserve units with the first being vn-r which were based near washington to train reserve pilots and to enable staff officers to maintain their flying categories by  all the remaining aircraft were operated by reserve units and at the outbreak of the second world war  aircraft were still in service the navy stopped the overhaul program for the aircraft and by the middle of  all of them had been struck off charge