The CHCNAV APACHE 4 is a configurable unmanned survey vessel for hydrographic and bathymetric surveys, water flow analysis and river discharge measurements.
Integrated GNSS and IMU sensors provide positioning, heading and hull motion compensation, supporting reliable data collection near bridges and other signal-obstructed areas.
Its central access shaft accommodates compatible ADCPs, compact multibeam echosounders, side-scan sonar and water quality probes, with a maximum payload capacity of 40 kg.
A built-in 200 kHz single-beam echosounder measures depths from 0.1 to 200 metres, providing depth profiles alongside ADCP flow velocity measurements.
Adaptive navigation and stable hovering support accurate cross-section surveys. An 8.6 cm draft enables shallow-water access, with up to 10 hours of operation at 1.5 m/s.
Android-based software, 4G connectivity and 2.4 GHz remote communication simplify survey control. Panoramic video, obstacle avoidance and IP67 protection support demanding fieldwork.
Size Guide
| Size | US | Bust | Waist | Low Hip |
|---|---|---|---|---|
| XS | 2 | 32 | 24 - 25 | 33 - 34 |
| S | 4 | 34 - 35 | 26 - 27 | 35 - 26 |
| M | 6 | 36 - 37 | 28 - 29 | 38 - 40 |
| L | 8 | 38 - 29 | 30 - 31 | 42 - 44 |
| XL | 10 | 40 - 41 | 32 - 33 | 45 - 47 |
| XXL | 12 | 42 - 43 | 34 - 35 | 48 - 50 |
Measuring Tips
Measure around the fullest part of your bust.
Measure around the narrowest part of your torso.
With your feet together measure around the fullest part of your hips/rear.
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