The Apache 4 is a versatile USV optimized for hydrographic and bathymetric surveys, supporting a range of Acoustic Doppler Current Profilers (ADCPs) and compact multi-beam systems. Its shallow draft, high accuracy, and stable hovering capabilities make it ideal for measuring water flow velocity and discharge in various aquatic environments. The Apache 4’s lightweight design (13 kg) allows for single-operator deployment, facilitating effortless site management and transportation. Integrated GNSS+IMU technology provides reliable positioning and heading data, enhancing survey precision even under bridges or in areas with GNSS signal obstructions. Additionally, the built-in single-beam echosounder verifies ADCP bottom-tracking data, extending the sounding range and ensuring data reliability.
| Manufacturer | CHCNAV |
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| Availability | Purchasable |
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The Apache 4 operates autonomously along predefined survey routes, utilizing adaptive water flow technology to maintain accurate navigation even in turbulent conditions. Its hovering feature enhances flow estimation accuracy by ensuring stability at observation points. The integrated GNSS+IMU system and advanced navigation controller provide precise positioning and stability, even under bridges or in areas with GNSS signal obstructions.
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