Heart Aerospace flew its X1 demonstrator at Plattsburgh International Airport on 12 August, the company announced. The aircraft taxied, took off, climbed, manoeuvred and landed. It reached 335 metres, and its all-electric propulsion produced more than one megawatt. The airframe explains the record. The X1 has a wingspan of about 32 metres, runs 23 metres […]This story continues at The Next Web