Uber Technologies Inc, the smartphone-based ride-sharing service company, has chosen Bangkok as the first city in Southeast Asia to introduce a one-day free trial for its helicopter service. Uber will offer free helicopter rides on demand to Bangkok nday from 11am to 3pm. Anyone in Bangkok can open up the Uber app and request a helicopter ride with UberCopter. If the request is accepted, the lucky rider and a friend will be picked up in a Mercedes-Benz and be whisked away to board a helicopter that will give them an exclusive tour of Bangkok. The number of Uber's mobile app downloads is expected to increase as a result of the helicopter campaign.