A trial helicopter hailing service jointly launched by Chinese general aviation operator Reignwood Star Co Ltd and China’s biggest taxi hailing platform proved a hit at the weekend in the congested capital of Beijing, the operator said on Monday. More than 10,000 applicants signed-up for the helicopter service using Didi Kuaidi’s platform, but only 100 managed to hail a ride, Lv Gang, Reignwood Star’s marketing chief, told Reuters. Helicopter leisure flights are a new concept in China where the military controls most of the airspace.