United Airlines unveiled its first new Boeing 787 Dreamliner, making United the first U.S. carrier to take delivery of the new airplane. The airline showcased its first 787, fresh out of the hanger at Boeing's Everett, Wash., facility. United is the North American launch customer for the Dreamliner, and expects to take delivery of its first 787 in September. The airline has firm orders for 50 787s for delivery by 2019.

Built primarily with composite materials, the 787 has 30 percent more range and uses approximately 20 percent less fuel than similarly-sized aircraft, while reducing emissions and noise during takeoffs and landings. With these advantages, the 787 will open up new non-stop destinations that customers would not be able to otherwise reach on United, such as the airline’s new Denver-to-Tokyo service that starts next spring.

The aircraft cabin is configured with 36 seats in United BusinessFirst, 72 seats in United Economy Plus and 111 seats in United Economy. Customers will be more comfortable with improved lighting, bigger windows, larger overhead bins, lower cabin altitude and enhanced ventilation systems, among other features. The 787's inflight entertainment system offers a new design that feature more intuitive browsing and more filtering options, giving customers the option of searching for programs by language.

United provided the first look at the aircraft's interior and customized livery that is exclusive to the fleet, featuring a gold line that wraps the fuselage and swoops from nose to tail. The livery is inspired by the trademark swoop painted on each of Boeing's aircraft and is being adopted for the United 787 in a tribute to the two companies' long history of working together.

On Tuesday, United also aired a live-stream webcast of the airline's first 787 rolling out of the paint facility in Everett. For a video of the new aircraft, click on United 787 Dreamliner Interior and Exterior."