An ongoing project of DLR (German Aerospace Center) called ALAADy (Automated Low Altitude Delivery), essentially an unmanned gyrocopter design for very low-level flight cargo-delivery. The ALAADy Demonstrator projects originally launched in 2016.
Info in this PDF:
https://elib.dlr.de/124481/1/Journal%20of%20System%20and%20Management%20Sciences%20-%20Vol.8_No.3_2.pdf
lllll As of 2019 I have transitioned; My name is now Rei. Please don't deadname or misgender me, thank you. <3 lllll
Air Cargo Gyrocopter (ACG) used as a scaled demonstrator and testbed:
https://event.dlr.de/en/ila2018/alaady/
Air Dolly (ADO) demonstrator and testbed based on the AutoGyro MTOfree (MTO-3):
https://www.dlr.de/blogs/en/desktopdefault.aspx/tabid-5893/9577_read-1131/ressort-1/
https://newatlas.com/unmanned-gyrocopter-maiden-flight/60829/