Heart's X1 demonstrator flew for 27 minutes from a regional airport in upstate New York, running on battery power the entire time. The aircraft reached 1,100 feet...

Heart Aerospace's 25,000-pound X1 flew 27 minutes on $5 of power, the largest electric aircraft yet, as it develops the ES-30 airliner.

Heart's X1 demonstrator flew for 27 minutes from a regional airport in upstate New York, running on battery power the entire time. The aircraft reached 1,100 feet...