The SH-2 Seasprite helicopter comes to mind. I worked for them on the C-5B wing flap and the A-6 flap and slats projects in the 80's
The K-Max has been flying cargo resupply for the Army in Afghanistan and they have an autonomous version. The tandem rotor negates the need for a
tail rotor. Lockheed-Martin were on board for this. www.lockheedmartin.com...
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