Летающий апарат без двигателей

Ion Propulsion Drone Proves Its Commercial Viability Undefined Technologies, a Florida-based startup, announced that its eVTOL ion propulsion drone, Silent Ventus™, has successfully completed a critical test flight hitting its projected flight time and lifting power, marking this a major milestone for the emerging dual-use cargo delivery drone. During the 4-1/2 minute flight, the aircraft demonstrated its flight performance beyond reaching steady-state conditions - with higher efficiency power delivery systems and noise levels below 75 dB. “We’ve been on this upward trajectory for nearly a whole year, working hard on overcoming many technical challenges related to craft’s cooling systems, battery lifetime, avionics, and noise-abatement technologies,“ says Tomas Pribanic, Founder and CEO of Undefined Technologies. “This milestone secures our vision of making ion propulsion technology viable for use in atmospheric conditions. I’m incredibly proud of our highly dedicated tea