Main Features

Configurable Platform

Available with a selection of different sensors.
GNSS+IMU

Accurate positioning and heading data.
Android OS

Android software for hydrological and bathymetric surveys.
Lightweight

13 kg for single-operator deployment.

Benefits and Performances

01 Efficient Hydrographic Surveying

Perform high-quality flow and velocity measurements with stable GNSS positioning and automated navigation. Ideal for hydrologists conducting ADCP hydrographic cross-section flow measurements.
02 Accurate Even Under Bridges

Maintain high accuracy under bridges with integrated GNSS and IMU sensors. The APACHE 4 provides precise position and attitude data, compensating for hull sway and eliminating data outliers during GNSS outages.
03 Versatile Instrumentation Compatibility

With its central access shaft design, the APACHE 4 supports ADCPs such as the CHCNAV RS Series, M9, RTDP 1200, RiverPro and RiverRay. It also accommodates the CHCNAV HQ compact multibeam echosounder, side-scan sonar and water quality probes for end-to-end surveys.
04 Integrated Single-Beam Echosounder

Verify ADCP bottom-tracking data using the built-in single-beam echosounder. It provides water depth profiles in conjunction with flow velocity measurements, significantly extending the ADCP's sounding range.
05 Advanced Navigation Controller

Navigate accurately along cross-sections with adaptive water flow technology. The hovering feature improves flow estimation accuracy by maintaining stability at observation points, even in turbulent conditions

Use Cases

Flood Risk Assessment
Sediment Transport Studies
Port Current Analysis
River Discharge Measurement

Detailed Specifications

Specifications

Resources

CHCNAV APACHE 4

Hydrographic and Bathymetric Surveys USV
Performances
- Speed max. : 6 m/s
- Payload capacity : Up to 35 kg
- Draft : 12 cm
- Positioning : Full GNSS + IMU
Echosounder
- Type : Single beam, 200 kHz
- Range : 0.15 to 200 m
- Accuracy : ±0.01 m + 0.1% x D
ADCP
- Type : CHCNAV RS600/1200
- Transducer : 5 beams
- Accuracy : ±0.25% ±2 mm/s
Sensors
- Camera : 360° video
Download

APACHE-4_DS_EN.pdf

3.61 MB

Download

Explore our FAQs

1. What types of waters can the APACHE 4 operate in?

The APACHE 4 is designed for bathymetric and hydrographic surveys in lakes, rivers, and coastal areas, including shallow and challenging environments.
2. How does the APACHE 4 ensure accurate navigation in turbulent conditions?

The integrated GNSS+IMU system and advanced navigation controller maintain precise positioning and stability, even in turbulent flow conditions.
3. Is the APACHE 4 suitable for one-person operation?

Yes, the lightweight (13 kg) design allows a single operator to manage the USV, ensuring versatility and ease of use.
4. What materials are used in the construction of the APACHE 4?

The APACHE 4 is constructed with macromolecule polyester carbon fiber for durability and waterproofing.

CHCNAV APACHE 4

Main Features

Benefits and Performances

01 Efficient Hydrographic Surveying

02 Accurate Even Under Bridges

03 Versatile Instrumentation Compatibility

04 Integrated Single-Beam Echosounder

05 Advanced Navigation Controller

Use Cases

Detailed Specifications

SEEKING FOR PERFECT SOLUTION TO FIT YOUR NEEDS?

Our Latest News

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Digital Twin Project: A Real Case of Flood Control Modeling and Simulation

CHCNAV Opens Dealership Opportunities to Marine Survey Professionals

Apache 4 USV in the hydrographic survey project

Explore our FAQs

1. What types of waters can the APACHE 4 operate in?

2. How does the APACHE 4 ensure accurate navigation in turbulent conditions?

3. Is the APACHE 4 suitable for one-person operation?

4. What materials are used in the construction of the APACHE 4?

CHCNAV APACHE 4

Main Features

Benefits and Performances

01 Efficient Hydrographic Surveying

02 Accurate Even Under Bridges

03 Versatile Instrumentation Compatibility

04 Integrated Single-Beam Echosounder

05 Advanced Navigation Controller

Use Cases

Detailed Specifications

SEEKING FOR PERFECT SOLUTION TO FIT YOUR NEEDS?

Related products

Our Latest News

CHC Navigation Unveils RiverStar ADCP 1200/600: Advanced Acoustic Doppler Current Profilers for Precision Hydrological Surveys

Digital Twin Project: A Real Case of Flood Control Modeling and Simulation

CHCNAV Opens Dealership Opportunities to Marine Survey Professionals

Apache 4 USV in the hydrographic survey project

Explore our FAQs

1. What types of waters can the APACHE 4 operate in?

2. How does the APACHE 4 ensure accurate navigation in turbulent conditions?

3. Is the APACHE 4 suitable for one-person operation?

4. What materials are used in the construction of the APACHE 4?