ZeroAvia

The failure of efforts to raise more funding was acknowledged in a June 30 statement

Major airports in the U.S. and Canada could become 'hydrogen hubs'

The company opened its manufacturing plant near Seattle this week

U.S.-based maintenance provider has 52 bases worldwide

The carrier operates seaplanes and wheeled aircraft across the Indian sub-continent and is seeking to expand the network with Indian government backing.

The start-up plans to operate domestic flights with hydrogen-powered regional airliners.

ZeroAvia has not confirmed how much its latest funding round has raised for plans to convert existing aircraft to use its fuel cell electric propulsion systems.

The company says the technology will support aircraft fuel cell-based powertrains with power ratings of up to 900 kW.

Having flown its hydrogen-powered Dornier 228 airplane 10 times, ZeroAvia says it has wrapped up its initial flight test campaign and is now preparing for its first cross-country flights.

Monte Aircraft Leasing has now fully committed to purchasing up to 100 of ZeroAvia’s hydrogen fuel cell powertrains to turn its fleet of nine- to 19-seat regional turboprops into more sustainable, hydrogen-powered aircraft.