A new and outlandish delivery drone concept can carry 100 pounds up to 80 miles

https://interestingengineering.com/delivery-drone-100-pounds-80-miles

"66 lb cargo... cargo pod roll directly under CCY-01 before attaching to airframe via metal bar... tilt forward reduce drag... PUPA airfoil... payload capacity 99 lb including PUPA... fly 25 miles 80 mph... CCY-01 is only in the concept phase so far, meaning it may never be built. Considering how unusual the design is, we'd wager that Cyclotech is taking its experimentation to the limit, without any guarantees of developing the machine they have designed"

Related:

Hydrogen H2D55 Drone 5X more energy efficient than traditional lithium battery-powered drones and can fly for 100 minutes with 15 lb. payload

https://www.jns.org/israeli-hydrogen-powered-drones-could-prove-revolutionary/?h2fd

What is a 'toroidal propeller' and could it change the future of drones? An expert explains

https://techxplore.com/news/2023-06-toroidal-propeller-future-drones-expert.html

Autonomous cargo drone with sustainable structures and intelligent battery systems

https://techxplore.com/news/2023-09-autonomous-cargo-drone-sustainable-intelligent.html