Swedish startup Heart Aerospace has achieved a significant milestone in its journey to revolutionize regional air travel with its hybrid-electric aircraft. The company unveiled its first full-scale demonstrator airplane, the Heart Experimental 1 (Heart X1), a 30-seat aircraft designed to test and develop the ES-30 electric aircraft. The HX-1 will undergo ground-based testing before taking to the skies for its inaugural fully electric flight in Q2 2025.