CHCNAV APACHE 4 PRO
High Performance USV Platform for Hydrographic and Bathymetric Surveying
Advanced Multi-Functional USV
Unlock versatile surveying capabilities with the APACHE 4 Pro USV. Built to handle a variety of hydrological tasks, this vessel supports mainstream Acoustic Doppler Current Profilers (ADCPs) and the CHCNAV HQ-400 Multi-beam Echo Sounder (MBES) for underwater mapping. Its customisable design ensures you are ready for any mission, easily accommodating water quality meters, side-scan sonar, and more.
Key Features
Built-in single beam echo-sounder (SBES)
Accurate Depth Measurements
GNSS+IMU Positioning
Precise positioning and heading, ensuring an accurate survey
Platform-based sonar
Supporting both Acoustic Doppler Current Profilers (ADCPs) and the CHCNAV HQ-400 Multi-beam Echo Sounder (MBES)
Android-based EasySail
Ensuring ease of usability, and support for our custom AnyDesk instance for getting you out of those tricky "it's this button!" moments
Features
Constructed with high-strength, high-modulus carbon fibre and HPT one-piece moulding technology, the hull achieves a strength of up to 10 MPa, significantly enhancing its collision resistance. The motors are equipped with mesh covers, reducing the risk of deformation upon impact.
The APACHE 4 Pro features a titanium alloy mesh cover combined with hybrid water pressure conversion technology, significantly reducing the risk of entanglement by aquatic vegetation. If the motor does become entangled, the system triggers a software alarm to help ensure motor safety.
With a 50 kg payload capacity and a 24 cm central access shaft, the APACHE 4 Pro supports ADCPs such as the CHCNAV RiverStar Series, M9, RiverPro, and RioGrande. It also accommodates the CHCNAV HQ-400 multi-beam echo sounder (MBES), side-scan sonar, and water quality monitors end-to-end survey solutions.
The APACHE 4 Pro features high-sensitivity, anti-interference transducers combined with residual vibration elimination technology. Its advanced bathymetric algorithms support adaptive parameter adjustment, enabling reliable performance in complex underwater terrain and diverse water environments.
The APACHE 4 Pro features an Android remote control that ensures reliable hydrographic and bathymetric survey operations. With both 4G and 2.4 GHz connectivity, it enables real-time monitoring and seamless vessel control. The EasySail app supports route planning, real-time data and video feedback, data collection, and post-processing.
The APACHE 4 Pro supports an optional automatic sound velocity profiler kit, which can be controlled via the remote controller. The kit can be installed or removed in under one minute, providing a complete multi-beam echo sounder solution for the USV.
Use Cases
Channel Dredging
Bathymetric Surveys
Waterway Mapping
Riverbed Mapping
Reservoir Mapping
CHCNAV APACHE 4 Pro
Platform-Based Hydrographic and Bathymetric Surveying USV
Performance
- Max Speed : 6.5 m/s
- Payload Capacity : 50kg
- Positioning : Multi-Constellation GNSS + IMU
Echosounder
- 200Hz Single Beam
- Range : 0.1 - 200m
- Accuracy : ±0.01 m + 0.1% x D
Sensors
- Camera : 360° video
- Obstacle Avoidance : Yes
- Optional MBES, ADCPs & ASVPK (Automatic Sound Velocity Profiler Kit)
Downloads & Resources
Access official documentation, manuals, and datasheets.
Download Datasheet (PDF)Frequently asked questions
Is a USV really a cost-effective system?
Yes. The APACHE 4 Pro enables affordable bathymetric surveys using a single-beam echo sounder. It is designed for efficient and cost-effective data collection in lakes, rivers, reservoirs, and coastal areas.
What types of waters can the APACHE 4 Pro operate in?
The APACHE 4 Pro is designed for surveying lakes, rivers, reservoirs and coastal areas, including shallow and challenging environments.
What's the difference between the APACHE 4 Pro and APACHE 4?
Compared to the APACHE 4, the APACHE 4 Pro offers improved anti-entanglement performance in areas with aquatic vegetation, a larger payload capacity, and higher bathymetric resolution.
What is the range of the remote control?
The APACHE 3 Pro remote control is supported up to 1km for reliable long-range operation. With strong 4G network coverage, unlimited distance is possible.
This would be my first use of the APACHE 4 Pro, and even hydro surveying. How can PQS Tech help?
At PQS Tech, we are built on a foundation of exceptional customer support. Whether you need us to train your team to capture surveys independently, or you prefer a fully managed service where we complete the work for you, we have a solution to fit your needs.