Vanguard OUSV-3 is a 40-meter optionally crewed surface vessel developed by Austal USA for the U.S. Navy. Based on Austal’s aluminum shipbuilding expertise, the platform is designed as a testbed for autonomy, modular payload integration, and extended endurance naval missions. Its large mission bay supports flexible operations from ISR to logistics.
| Manufacturer | Austal / Austal USA |
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| Availability | Purchasable |
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Vanguard is designed for optional crewing with an integrated autonomy suite enabling long-endurance unmanned operations. It supports autonomous navigation, fleet integration, and remote control from Navy C2 centers, serving both as an experimental platform and as a pathway for future Large USV programs.

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