Richen Power fly hybrid hexacopter for over seven hours

Hybrid powertrain enables record flight times. On January 19th, 2018, a hybrid drone named Owling took off at 09:15 AM in Tianjin, China and landed at 16:32 PM. The flight lasted 437 minutes, or 7.3 hours. Owling was powered by a Richenpower Ltd H2 hybrid system, H2 weights 4 kilograms 8.8 lb, and generates a continuous 1.8 kilowatts or 2.4 ["]