--- title: "Explained by Offshore Sensing: Wind-propelled USV" description: "AIS for USVs explained: visibility for nearby traffic, working with Iridium control and geofencing to support safe autonomous missions. Local rules apply; not legal advice." image: https://sailbuoy.no/hubfs/Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png --- [Skip to main content](https://sailbuoy.no/news/wind-propelled-usv#main-content) [![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg)](https://sailbuoy.no) - [Show submenu for USV USV](https://sailbuoy.no/unmanned-surface-vessels) - [SB Bio](https://sailbuoy.no/sb-bio-unmanned-surface-vessel) - [SB Comms](https://sailbuoy.no/sb-comms-unmanned-surface-vessel) - [SB Echo](https://sailbuoy.no/sb-echo-unmanned-surface-vessel) - [SB eEDNA](https://sailbuoy.no/sb-edna-unmanned-surface-vessel) - [SB Met](https://sailbuoy.no/sb-met-unmanned-surface-vessel) - [Fisheries](https://sailbuoy.no/commercial-fish-scouting) - [Build your own](https://sailbuoy.no/unmanned-surface-vessels#byo) - [Technology](https://sailbuoy.no/the-sailbuoy-technology) - [Missions](https://sailbuoy.no/missions) - [News](https://sailbuoy.no/news) - [Show submenu for Company Company](https://sailbuoy.no/company) - [Join our team](https://sailbuoy.no/career) - [Our partners](https://sailbuoy.no/our-partners) Open main navigation Close main navigation - Show submenu for USV USV - USV - [USV](https://sailbuoy.no/unmanned-surface-vessels) - [SB Bio](https://sailbuoy.no/sb-bio-unmanned-surface-vessel) - [SB Comms](https://sailbuoy.no/sb-comms-unmanned-surface-vessel) - [SB Echo](https://sailbuoy.no/sb-echo-unmanned-surface-vessel) - [SB eEDNA](https://sailbuoy.no/sb-edna-unmanned-surface-vessel) - [SB Met](https://sailbuoy.no/sb-met-unmanned-surface-vessel) - [Fisheries](https://sailbuoy.no/commercial-fish-scouting) - [Build your own](https://sailbuoy.no/unmanned-surface-vessels#byo) - [Technology](https://sailbuoy.no/the-sailbuoy-technology) - [Missions](https://sailbuoy.no/missions) - [News](https://sailbuoy.no/news) - Show submenu for Company Company - Company - [Company](https://sailbuoy.no/company) - [Join our team](https://sailbuoy.no/career) - [Our partners](https://sailbuoy.no/our-partners) - Search - [Contact us](https://sailbuoy.no/contact) [Contact us](https://sailbuoy.no/contact) Search # Explained by Offshore Sensing: Wind-propelled USV A wind-propelled USV (Unmanned Surface Vessel) uses a sail for propulsion and solar power for onboard electronics. The Sailbuoy is controlled via Iridium satellite links for command and telemetry, can operate autonomously for many months, and typically averages 1–2 knots, with peak speeds of around 3 knots. Because propulsion comes from the wind rather than electric motors, the Sailbuoy is not limited by battery capacity for navigation. This makes it a true long-duration USV capable of missions extending well beyond 12 months. In practice, most operators choose to recover the vehicle after 4–6 months to clean marine growth from sensors and retrieve any high-resolution data stored onboard. The Sailbuoy enables persistent ocean data collection with dramatically fewer vessel-days, lower operational costs, and reduced HSE exposure. ## What is a wind-propelled USV? A wind-propelled USV is an autonomous surface platform that harvests wind for motion and solar for sensor/electronics power. With Iridium for two-way communications, it follows planned routes, respects geofences, returns status and data in near-real time, and maintains missions without onboard crew for months. ## Why does wind-propelled USV matter offshore? Persistent coverage improves data continuity and reduces weather-window pressure. With typical long-term speeds of 1–2 knots and peak speeds around 3 knots, a wind-propelled USV can replace short crewed missions, extending well beyond 12 months. Iridium control, AIS visibility where applicable, and geofencing support safe, efficient operations and lower total vessel-days. ### FAQ **How long can it stay at sea?** It is a true long-duration USV capable of missions extending well beyond 12 months. In practice, most operators plan 4–6 month missions before recovery, depending on marine growth, routing, and conditions. **How is it monitored and controlled?** Two-way Iridium satcom provides commands, telemetry, geofences, and alerts throughout the mission. ### Related Articles ##### [![Explained by Offshore Sensing: Autonomous platform emissions and sustainability in marine research](https://sailbuoy.no/hs-fs/hubfs/Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png?width=520&height=294&name=Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png) Explained • June 2, 2026 Explained by Offshore Sensing: Autonomous platform emissions and sustainability in marine research](https://sailbuoy.no/news/explained-by-offshore-sensing-autonomous-platform-emissions-and-sustainability-in-marine-research) ##### [![Explained by Offshore Sensing: Arctic and polar ocean monitoring with autonomous platforms](https://sailbuoy.no/hs-fs/hubfs/Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png?width=520&height=294&name=Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png) Explained • June 2, 2026 Explained by Offshore Sensing: Arctic and polar ocean monitoring with autonomous platforms](https://sailbuoy.no/news/explained-by-offshore-sensing-arctic-and-polar-ocean-monitoring-with-autonomous-platforms) ##### [![Explained by Offshore Sensing: Continuous ocean time-series data: why gaps in observation cost science](https://sailbuoy.no/hs-fs/hubfs/Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png?width=520&height=294&name=Hubspot%20blog%20feature%20image%20explained%20by%20offshore%20sensing%20(1).png) Explained • June 2, 2026 Explained by Offshore Sensing: Continuous ocean time-series data: why gaps in observation cost science](https://sailbuoy.no/news/explained-by-offshore-sensing-continuous-ocean-time-series-data-why-gaps-in-observation-cost-science) [![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg)](https://sailbuoy.no) - [Book meeting](https://sailbuoy.no/contact) - [Build your Sailbuoy](https://sailbuoy.no/unmanned-surface-vessels) - [Explained by Offshore Sensing](https://sailbuoy.no/explained-by-offshore-sensing) - [Resources](https://sailbuoy.no/resources) Offshore Sensing AS Sandslimarken 31 5254 Sandsli, Norway   [Crowdworks Company Profile](https://app.crowdworks.it/companies/offshore-sensing/update) ©2026 Offshore Sensing AS. 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