https://i2.wp.com/kdra.org/wp-content/uploads/rainboard_img/2017/04/스크린샷-2017-04-20-오후-9.16.23.png?fit=2302%2C159415942302kdrahttp://kdra.org/wp-content/uploads/2016/12/KDRA_LOGO_KR.pngkdra2017-04-20 23:11:192019-03-07 00:04:342017 Korea drone racing schedule