English: The Bell Textron XV-15 Tiltrotor aircraft prepares to land on the lawn of the Pentagon. The Tiltrotor, painted in Coast Guard colors, was part of the Pentagon Tiltrotor Technology Presentation sponsored by the U.S. Marine Corps in Washington, DC. Bell Textron is partnered with Lockhead-Martin as one of three teams hired to design surface, air and information technology systems for the 21st century Coast Guard.