Iver4 900
L3Harris Iver4 900-series autonomous underwater vehicle designed for clandestine torpedo-tube launch and recovery from attack submarines; in delivery to the US Navy from May 2026.
Last refreshed: 29 May 2026 · Appears in 1 active topic
How fast are submarine-launched AUVs like Iver4 900 reaching frontline US Navy boats?
Timeline for Iver4 900
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Autonomous Systems: Land & Sea- What is the L3Harris Iver4 900?
- The Iver4 900 is a submarine-launched autonomous underwater vehicle made by L3Harris, designed to be deployed through standard torpedo tubes. It entered delivery to the US Navy under a Defense Innovation Unit contract in May 2026.Source: Naval News
- What does the Defense Innovation Unit contract for Iver4 900 mean?
- The Defense Innovation Unit (DIU) contract signals that the US military used a non-traditional, faster procurement pathway to bring L3Harris's commercial AUV technology into fleet service, rather than the standard multi-year defence acquisition process.Source: Naval News
- Can the Iver4 900 be launched from any submarine?
- The Iver4 900 is designed to be launched from 533mm torpedo tubes, the standard size on US Navy Virginia-class and many allied attack submarines, making it compatible with a wide range of submarine platforms.Source: Naval News
Background
The Iver4 900 is a submarine-launched autonomous underwater vehicle (AUV) made by L3Harris, designed for clandestine intelligence-gathering, mine countermeasures, and hydrographic survey from torpedo tubes on attack submarines. In May 2026 L3Harris announced the Iver4 900 is in delivery to the US Navy under a Defense Innovation Unit contract, marking the transition from development to operational fleet integration.
The Iver4 900 is sized to launch from standard 533mm torpedo tubes, allowing it to be deployed from Virginia-class and other attack submarines without surface support. Its design prioritises low acoustic signature and autonomous mission execution over extended ranges, supporting the intelligence-collection and seabed-survey roles that are growing in importance as NATO navies focus on critical undersea infrastructure protection.
The Defence Innovation Unit contract behind the Iver4 900 reflects the US military's use of non-traditional acquisition pathways to accelerate commercial technology into fleet use. The delivery timeline in May 2026 runs in parallel with HII's REMUS 600 torpedo-tube demonstrations, signalling convergence across US Navy suppliers toward the same operational concept: submarines deploying autonomous systems forward, below the surface, without crew exposure.