The High Energy Laser Mobile Demonstrator (HEL MD) successfully took out drones and 60mm mortars under sub-optimal conditions during tests in Florida earlier this year, the company announced Sept. 4.

Fog and wind did not detract from its performance, which paves the way for the weapon to be used at sea.

"With capabilities like HEL MD, Boeing is demonstrating that directed energy technologies can augment existing kinetic strike weapons and offer a significant reduction in cost per engagement," Boeing Directed Energy Systems director Dave DeYoung said in a press release. "With only the cost of diesel fuel, the laser system can fire repeatedly without expending valuable munitions or additional manpower."