Get the latest tech news
DARPA heavy lift challenge ends with winner at a 3.84:1 payload to weight ratio
Avidrone Inc. won the DARPA Lift Challenge at a 3.84:1 payload-to-weight ratio with the Katana, a conventional single-rotor helicopter, and because nobody reached 4:1, the half-prize clause DroneXL reported last week cut every podium payout in two. The result says as much about energy density and American drone policy as it does about lift.
None
Or read this on Hacker News
