In 2014 in Seattle near the space needle, there was a news copter that crashed on takeoff from a news building. It lifted 5 feet in the air then took a nosedive. Both pilot and news photographer were killed on impact in the city street below the building. Serveral explosions happened. The gas from copter also caught a car on fire. The driver of the car had serious burns. \n\nAnyhow seems like there are split second decisions that can go wrong in helicopters.