Swedish startup Heart Aerospace has unveiled its first full-scale demonstrator hybrid-electric aircraft as it targets commercial flight by the end of 2029, a year later than previously planned.  Heart revealed the prototype, dubbed HX-1, at its hangar in Gothenburg yesterday, which we toured earlier this year.   The HX-1 prototype outside Heart’s hangar in Gothenburg, Sweden. Credit: Heart Aerospace The company will initially use the aircraft for ground-based testing, with the first flight scheduled for the second half of 2025 at the latest. It is set to be the largest electric plane to ever take to the skies.    “It is a…

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