£500 OFF any Product Purchased at the Event!!
The Apache 4 is a compact yet highly capable Unmanned Surface Vessel l designed by CHC Navigation to deliver precise, reliable results, no matter how challenging the environment. Watch the videos below to find out why it’s a game changer for the surveying equipment industry…
Wed, 9 Jul 2025 09:30 - 16:30
Crow Wood Hotel & Spa Resort
Intro to the apache 4
Apache 4 available for Hire
The Apache 4 is built for jobs where safety is a concern and speed matters, making it perfect for specific, high-demand projects. That’s why, in addition to being available for purchase, it can also be hired. On your first hire, we’ll send an operator to walk you through how everything works. After that, you can run it yourself or have someone come out again to assist, whatever suits your needs. Hiring is a practical option, especially if you only need the equipment for certain projects and want to avoid long wait times for delivery.
See the apache 4 In Action
See the Apache 4 for Yourself
At Tri-Site, we understand the importance of hands-on experience when investing in surveying equipment. Being able to try technology before committing, understanding the benefits and receiving guidance from industry professionals. We know that finding the most suitable equipment for your projects and being able to see all its features in real life are critical factors in making informed decisions. We’re also genuinely passionate about surveying and the tools that are moving the industry forward and want to bring our knowledge to others in our industry. This inspired us to host a full-day event dedicated to the latest advancements in surveying technology in partnership with CHCNAV. showcasing the Apache 4 alongside the RS10 Laser Scanner, GNSS Sensors and the X500 Drone.
Due to the success of our first Surveying Equipment Showcase Event, we’re coming to Leeds. The day will be hosted in the Harewood Suite at Harwood House in Leeds, running from 09:30 to 16:30The programme includes expert-led demonstrations and hands-on access to equipment. You’ll get an introduction to both Tri-Site and CHC Navigation, followed by in-depth sessions on the RS10, GNSS rovers, X500 drone and Apache 4 USV. Refreshments and lunch are included, and there will be time for informal Q&A and further equipment testing in the afternoon. It’s a relaxed but informative environment designed to help professionals make confident decisions about the tools they use on-site.
Join us for an insightful day celebrating our industry. Whether you’re looking to upgrade your kit, explore new possibilities or stay ahead of the curve, this is a unique opportunity to try out cutting-edge tools with the support of experienced professionals. Get tickets by booking the link below.
Features
Thanks to a GNSS + IMU positioning system, the Apache 4 stays on course even in turbulent flow or when GPS signals are limited. This means highly accurate cross-sectional data, especially important for flood modelling and riverbed profiling.
At the start and end of ADCP observations, the vessel can hover steadily in place, reducing noise in flow estimations and increasing data reliability.
With depth range capabilities from 0.15 to 200 meters and ±0.01 m accuracy, this unit provides detailed water depth profiles and can verify or complement ADCP tracking data.
Don’t let its size fool you: this vessel can carry up to 35 kg of payload, including ADCP sensors, multi-beam echo sounders, side scan sonar, and water quality monitors.
With up to 8 hours of endurance on a single charge and hot swappable batteries, teams can complete large surveys in one go -no mid-mission swaps or delays.
Using CHC’s dedicated Easysail app and Android control system, operators can plan missions, view live video of the area with built-in 360 camera, data feeds, and make real-time adjustments -all from shore.
With millimeter-wave obstacle detection, auto-return on low battery or lost signal, and a triple-hull carbon fiber design (IP67 rated), safety and reliability are built into every survey.
