Advanced Medium STOL Transport
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![McDonnell Douglas YC-15](/Images/godic/202412/20/Yc15-1_0721417.jpg")
The Advanced Medium STOL Transport (AMST) project was intended to replace the Lockheed C-130 Hercules tactical transport in United States Air Force service with a new aircraft with improved STOL performance. Increased need for strategic airlift led the Air Force to cancel the AMST program and seek a larger airlifter.