Advanced subsonic transport technology.

NASA has undertaken an Advanced Transport Technology Program directed toward defining technology advances that would contribute to a superior subsonic long-haul transport aircraft for conventional takeoff and landing. The aircraft, engine industries, and airlines play substantial parts in the program. Major objectives of the studies include the making of conceptual layouts of new subsonic transport aircraft incorporating projected advances and the identification of the potential benefits and costs of the technology advances. Another goal is the definition of the ground and flight research activities required to bring the advanced technologies to a state of readiness for industry use by the late 1970s.