LISBON, Portugal--Brazil's Embraer is looking to make significant inroads in the U.S. market, particularly with the company's KC-390 jet tanker/transport. "We see how turboprop aircraft struggle to refuel fast jets," Frederico Lemos, the chief commercial officer of Embraer Defense & Security, told reporters here on Wednesday. "It's tough for them to be flying at 30,000 plus feet and coming down to 20,000 to refuel at very low speed makes them more susceptible to attacks at the lower altitude, and then…
