Ampaire

With options, the agreement could see Monte purchase a total of 50 of Ampaire's hybrid-electric version of the Cessna Grand Caravan.

The airline's engineering division will help Ampaire implement conversions of aircraft to hybrid-electric propulsion under supplemental type certificates.

Ampaire flew its Electric EEL technology demonstrator from Los Angeles to Oshkosh, Wisconsin, for the annual EAA AirVenture show, logging what it says was the longest-ever flight by a hybrid-electric aircraft.