Indo Pacific 2025: C2 Robotics unveils loitering munition-armed variant of Speartooth LUUV

The Speartooth LUUV demonstrating a new payload capability at Indo Pacific 2025. (Janes/Ridzwan Rahmat)

Melbourne-based C2 Robotics has unveiled a variant of its Speartooth large unmanned underwater vehicle (LUUV) that can be configured to launch loitering munitions.

This capability was showcased at the Indo Pacific International Maritime Exposition 2025 in Sydney, where the company for the first time displayed a variant of the LUUV equipped with a payload bay with hatches and a retractable launcher designed to deploy the munitions.

To illustrate this capability, the launcher was seen with a proprietary loitering munition that loosely resembles C2 Robotics' Optically Guided Remote Effect (OGRE) quadcopter-based payload delivery system.

However, instead of the compound wing structure, the unnamed loitering munition had each of its four rotors mounted on swing wings, presumably to reduce its overall footprint in the payload bay.

Like the OGRE, this loitering munition featured optical guidance based on terrain data and thus is capable of reaching its target without the need for GPS or radio datalinks, Tom Loveard, co-founder and chief technology officer of C2 Robotics, said in response to a question from Janes at Indo Pacific 2025.

Loveard added that the company has developed a pod-launchable variant of the loitering munition, which can also be incorporated onboard the Speartooth LUUV.

The Speartooth LUUV is a large-displacement autonomous underwater platform developed to meet a requirement for persistent, multimission capability in contested maritime environments.

It was first unveiled by the Royal Australian Navy (RAN) at Indo Pacific 2022. There are two early variants of the LUUV, one of which has an overall length of 8 m and the other one 4 m.