The Hellhound S3 is about the size of a baseball bat and weighs about 6 kg (13 pounds). Its turbojet engine lets it fly more than 60 km (37 miles) at speeds of up to 618 km/h (384 mph), far faster than the propeller-driven quadcopters and loitering munitions common in Ukraine. Built from 3D-printed parts and commercial off-the-shelf components, it can be produced at a rate of more than 100 a month, according to the company. In its man-portable form, the drone, its launch canister and ground controller together weigh less than 11 kg (25 pounds), so one soldier can carry and launch it.