It was a first in sailing, shedding new light on an event taking place hundreds of kilometers from the shoreline.
원문출처 : https://www.cnn.com/2018/02/15/sport/volvo-ocean-race-sailing-drone-sam-greenfield/index.html
원문출처 : https://www.cnn.com/2018/02/15/sport/volvo-ocean-race-sailing-drone-sam-greenfield/index.html