Largest Hybrid-Electric Aircraft Makes First Flight Technology by Editorial Staff - 06/11/201908/27/2019 Ampaire, Inc. has moved the aviation industry a major step forward with the test flight of the Ampaire 337, the highest-capacity hybrid-electric aircraft ever flown. Ampaire engineers, investors and journalists recently witnessed the hybrid-electric Ampaire 337 fly in the skies above Camarillo Airport in California. This