F-Helix is the project developed by Ierom to produce an innovative self-opening electrically powered helicopter. The project, in fact, will adopt the revolutionary technology of hydrogen batteries on his aircraft, much lighter than lithium batteries and particularly environmentally friendly, both for production (less grey energy) and consumption (zero emissions). With hydrogen batteries with a total weight of about 280 kg and a power of 230 kW, with only 10 kg of liquid hydrogen F-Helix will be able to stay in the air for over 4 hours and travel over 650 km with four people on board.