The Apache 3 from CHCNAV is a compact and powerful USV (Unmanned Surface Vehicle) designed for precise bathymetric surveys in lakes, rivers, and coastal areas. Thanks to its low weight, shallow-draft design, and ease of transport, it is particularly well-suited for use in hard-to-reach or remote areas where conventional survey boats reach their limits.
The system is equipped with a built-in single-beam echo sounder as well as high-precision GNSS and IMU technology, enabling the collection of reliable depth and position data. Even under challenging conditions such as currents or rough water, intelligent sensor fusion ensures stable and precise measurement results.
The rugged, one-piece carbon-fiber hull offers high durability combined with reduced weight. Together with its compact design, this enables easy one-person operation and rapid deployment on-site – ideal for flexible surveying tasks and efficient workflows.
With its powerful drive system, the Apache 3 reaches speeds of up to 4.5 m/s and offers an operating time of up to 4 hours. Hot-swappable batteries ensure uninterrupted operation even during longer missions.
Autonomous route guidance enables precise navigation along predefined measurement lines, while seamless 4G communication ensures a stable connection. Through the Android-based EasySail software, users have access to features such as live data display, video transmission, route planning, and data collection and processing – all directly via the remote control, without the need for additional external devices.
Product characteristics
- Full dimensions (L x W x H): 1050mm x 550mm x 390mm
- Material: High-strength carbon fiber
- Weight (without instrument and battery): 7kg
- Maximum payload: 35kg
- Anti-wave and wind: 3. wind level and 2. wave level
- Hull Design: Triple-hull vessel
- GNSS: Intern GNSS double antenna
- Waterproof: IP67
- Static draft: 10cm (unloaded)
- Indicator light: Two-color (positioning and differential signal)
- Camera: 360° omnidirectional video
- Obstacle Avoidance distance & range: 0.2 – 40m (H: 112°, V: 14°)
- Propeller type: Brushless DC
- Directional control: Veering without steering engine
- Rated Motor power: 800W
- Maximum Motor speed: 7200 ± 5% RPM
- Li-ion battery capacity: 32.4V, 23.1Ah
- Battery endurance: 4 h @ 1.5 m/s (1 battery set, expandable)
- Power supply: Single/dual balanced battery support
- Battery charging time: 3h
- Maximum speed: 4.5 m/s
- Communication:
- Data communication: Standard 4G and Remote control
- Remote control range: 1 km (Remote); Unlimited (4G)
- SIM Card Slot: Nano SIM
- Reserved interface: 2x RS232 serial ports
- Navigation mode: Manual or Auto-Pilot
- Data storage: Local (Multi channel) & Remote
- Software: Easysail
- Positioning:
- Satellite system: BDS B1I/B2I /B3I, GPS L1C/A/L2P(Y)/L2C/L5, Galileo E1/E5a/E5b, GLONASS L1/L2, QZSS L1/L2/L5
- Single Point Position (RMS): Horizontal: 1.5m; Vertical: 2.5m
- DGNSS Position accuracy: Horizontal: 0.4m + 1ppm; Vertical: 0.8m + 1ppm
- RTK Position accuracy: Horizontal: ±8mm + 1ppm; Vertical: ±15mm + 1ppm
- Radio protocols: Satel 3AS, CHC, TT450, Transparent
- Heading accuracy: 0.1 ⁰ @1m baseline
- Inertial Navigation stability: 6 ⁰/ h (accuracy attenuation 1m after 20 s)
- IMU Update rate: 200 Hz
- D230 Single-Beam Echo Sounder:
- Data type: CHCGD, NMEA SDDPT/SDDBT, Original wave form
- Sounding range: 0.1m to 200m
- Sounding accuracy: ±0,01m + 0,1 % x D (D is the depth of water)
- Resolution: 0.01m
- Maximum sampling rate: 30 Hz
- Frequency: 200 kHz
- Beam angle: 6.2° ± 1°
- Sound velocity adjustment range: 1400 – 1700 m/s
- Integrated water temperature sensor: -55 °C ~ +100 °C, Real time correction of the sound speed
Delivery content
- APACHE 3 USV (including D270 and camera)
- 4x LiPo battery (23,100 mAh, 32.4 V)
- 2x lithium battery charger for 23,100 mAh
- Remote control (EC10)
- UAV accessory kit
- 2x RC and Wi-Fi antennas
- 4G antenna
- High-frequency radio antenna
- ESC debugger
- UAV screws
- UAV chassis (with wheels)
- 2x battery compartments
- Canvas bag
- Standard Chinese power cord
- International adapter plug
