The events of 9/11 as they unfolded through actual audio.
K-MAX Beacon-Enabled Delivery
The K-MAX unmanned cargo helicopter successfully demonstrated its ability to make a delivery and a landing within three meters of a beacon during tests at Ft. Pickett, Va., for the Army's Aviation Applied Technology Directorate in April, 2012. Developed by Lockheed Martin and Kaman Aerospace, K-MAX is currently being deployed in Afghanistan by the Marines. The Army has contracted with Lockheed Martin to develop, demonstrate and deliver autonomous technologies for unmanned air systems in support of in-theater unmanned cargo resupply missions, as well.