Chol-Bum “Mike” Kweon

Stories

Army flies first drone powered by a 3D-printed heavy-fuel rotary engine

Leading the VICTOR propulsion program

The Army flew a Group 3 drone whose engine was printed in metal and burns JP-8, the kerosene-based fuel already used in trucks and helicopters. The engine never turns a propeller. It spins a 400-volt generator, and electric motors drive the aircraft.

Updated 4 days ago

Notable Quotes

The use of advanced manufacturing, including 3D metal printing, allowed us to rapidly redesign engine components based on lessons learned through experimentation. It enabled us to design an air-cooled engine that reduces propulsion-system size and eliminates the need for liquid coolant.

from Army flies first drone powered by a 3D-printed heavy-fuel rotary engine · Updated 4 days ago

For warfighters, the program has transitioned research findings to industry partners for maturation and integration into capabilities that could enable mid-sized drones to operate beyond line of sight, extending the reach of ground commanders and reducing risk to Soldiers.

from Army flies first drone powered by a 3D-printed heavy-fuel rotary engine · Updated 4 days ago