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The CHCNAV APACHE 4 is an unmanned surface vehicle (USV) designed for hydrographic and bathymetric surveys, ideal for rivers, lakes, and shallow coastal areas.
CHCNAV APACHE 4
The CHCNAV APACHE 4 is an unmanned surface vehicle (USV) designed for hydrographic and bathymetric surveys, ideal for rivers, lakes, and shallow coastal areas.
APACHE 4 - USV for hydrographic and bathymetric surveys
The CHCNAV APACHE 4 combines precision, autonomy, and versatility in a compact and easy-to-transport USV. It integrates GNSS and IMU to maintain accuracy even in areas with poor satellite coverage, and supports mounting ADCP sensors and echo sounders to obtain detailed water velocity and depth data. Its smart navigation system ensures stable paths and reliable measurements even under challenging conditions, all managed from an intuitive Android interface.
Main features
| Lightweight and portable | weighs only 13 kg, can be operated by one person, and is easy to transport by car |
| High payload capacity | supports up to 35 kg of additional sensors (multibeam echo sounder, side-scan sonar, water quality monitors) |
| Integrated Android ecosystem (EasySail) | via 4G or 2.4 GHz radio allows planning, real-time control, video and data transmission, and post-processing |
Key advantages
- High precision: GNSS + IMU and echo sounder validate ADCP data, even in poor GNSS signal conditions.
- Operational efficiency: with adaptive navigation technology, reduces measurement time (two passes in 20 minutes vs. traditional 2h) and lowers manpower requirements.
- Instrument versatility: compatible with multiple ADCPs, CHCNAV HQ-400 multibeam echo sounder, side-scan sonar, and water quality sensors.
Technical specifications
- Max speed: 6 m/s
- Net weight: 13 kg, payload up to 35 kg
- Draft: 12 cm
- Echo sounder: 200 kHz frequency, range 0.15 - 200 m, accuracy ±(0.01 m + 0.1 % × D)
- ADCP: 5-beam system (RS600/1200), accuracy ±0.25 % ±2 mm/s
- Remote communication: 2.4 GHz radio, 4G for control and transmission
Why choose APACHE 4
The APACHE 4 is the solution for hydrographic work in complex environments. Its stable and maneuverable design reduces operational risks, enabling safe measurements even in hard-to-reach areas. Thanks to its integrated echo sounder and compatibility with top-tier ADCPs, it delivers accurate results with a simple setup. Additionally, its autonomous navigation system and remote control via radio or 4G ensure high productivity with just one operator, optimizing time and resources in every campaign.
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