SNU Team Startles Engineers With UAV Technology Last Saturday, a scarlet drone circled in the air, descending to only 5 m above reclaimed land along the west shore of Hwaseong, Gyeonggi Province. It was the maiden flight of the SNUGL, an unmanned aerial vehicle with a GPS receiver made by Seoul National University research team. Prof. Kee Chang-don and students of SNUÂ’s School of Mechanical and Aerospace Engineering developed technology which allows unmanned aerial vehicle to take off and land by using only GPS. It took six years, 200 test flights and five crashes to make their dream come true....