Heaviside Tyr: US-Norwegian loitering munition with a Nammo anti-armour warhead for under $100,000

The new US-Norwegian company Heaviside has presented Tyr, a loitering munition weighing about 15 pounds (roughly 7 kg) designed to destroy tanks. The company is headquartered in Los Angeles, but engineering, development and testing take place in Norway. The details were given by company executives in an interview with Breaking Defense.

A warhead from the M72 LAW

About a third of Tyr’s weight is the warhead, supplied by Norway’s Nammo and derived from the warhead of the M72 LAW anti-tank launcher. According to the company it can destroy T-72 and T-80 tanks. Nammo also provides a test range for the programme but is not an investor, since Heaviside is funded by venture capital. Tyr has already been tested at minus 20 degrees Celsius.

Autonomous search, with a human in the loop

Tyr navigates using a combined picture from electro-optical and thermal sensors, so it can operate when GPS is jammed. The munition searches for targets on its own, but the final decision to attack is taken by the operator, who presses “engage”.

The company says the price is “well under $100,000” without the reusable launcher, thanks to commercial components. Heaviside’s president is Nils Haagenrud, who previously worked on Teledyne FLIR’s tiny Black Hornet drone.

A growing market

The market for cheap loitering munitions is expanding fast, with offerings such as SAS Technology’s AHM-2X at AUSA 2026, while Greece has also moved to acquire Switchblade 300 and 600 munitions.

Underwater drone and an Army contract

Heaviside is also developing Nyx, an uncrewed underwater vehicle. It has secured an indefinite-delivery, indefinite-quantity contract worth up to $99 million under the US Army’s REWSI initiative for the MOTH portable electromagnetic spectrum analyser, a tool that lets units see the emissions around them in the field.

The company is only two years old, but a proven Norwegian warhead combined with cheap commercial electronics is what armies are asking for after the experience of Ukraine: weapons that can be built in large numbers, used by small infantry units and strike armour at a range far greater than a portable anti-tank launcher.