

The farthest distance travelled by electric helicopter (prototype) is 56.82 km (35.00 miles), and was achieved by Martine Rothblatt, Lung Biotechnologies, Tier 1 Engineering, and Ric Webb (all USA) in Los Alamitos, California, USA, on 7 December 2018.
The helicopter was created by Tier 1 Engineering, and flown by pilot Ric Webb. Rothblatt’s ultimate goal is to secure federal approval of the battery-powered helicopters for use in transporting accident victims and organ transplants to hospital facilities.