Engineering giant moves beyond rotorcraft to fixed-wing precision, deploying the Delair UX11 across rugged western U.S. mining sites for rapid, centimeter-accurate volumetric analysis.
In a strategic move that underscores the growing maturity of drone-based surveying in heavy industry, global engineering and project-management firm Wood has officially adopted the Delair UX11 fixed-wing UAV for large-scale topographic surveying and material quantity measurement across its mining and quarry portfolios. The deployment—initially focused on active phosphate mining operations in Idaho and Wyoming—represents Wood’s first operational use of a fixed-wing unmanned aircraft in the western United States, marking a decisive pivot away from traditional ground crews and multi-rotor drones for vast, remote terrain.
With individual project areas exceeding 200 acres and demanding survey-grade accuracy down to the centimeter, Wood’s heavy civils team identified the UX11 as the only practical solution capable of balancing range, precision, and operational speed in active, high-risk environments.
The Challenge: Scale, Safety, and Certainty
Mining and quarry operations present a unique triad of surveying challenges. Sites are often sprawling, geologically complex, and continuously evolving as excavation progresses. Traditional ground-based survey methods require technicians to walk hazardous terrain alongside heavy haul trucks, excavators, and drill rigs—a safety liability that project managers are increasingly unwilling to accept. Multi-rotor drones, while effective for smaller sites, lack the endurance and coverage needed for mile-long pit lines and stockpile complexes.
“For the scale of the projects we are performing, and the accuracy required, adopting the Delair UX11 was a logical choice,” said Greg Meinecke, Technical Services Manager at Wood. “We are able to get surveys covering large tracts of land done in a very short amount of time, so it ends up being much more cost effective for us and the client.”
That efficiency translates directly into bottom-line value. By flying pre-programmed grid patterns at 400 feet above ground level—often using Beyond Visual Line of Sight (BVLOS) flight plans approved through rigorous risk assessments—Wood’s pilots can capture thousands of overlapping high-resolution images in a single sortie. These are then processed through photogrammetry software to produce dense point clouds, digital elevation models (DEMs), and contour-grade topographical maps.
Why the Delair UX11?
The UX11 is a lightweight, catapult-launched fixed-wing UAV designed specifically for industrial surveying, mapping, and inspection. Its embedded global-shutter camera and Post-Processed Kinematic (PPK) GNSS receiver are the twin pillars of its appeal for Wood’s surveyors. Unlike rolling-shutter sensors that can introduce distortion during flight, the global shutter captures motion-free imagery, while PPK eliminates the need for real-time ground control stations by correcting positional data after landing—achieving absolute horizontal and vertical accuracy within 2–3 centimeters.
Key specifications that drove Wood’s adoption include:
Endurance: Up to 75 minutes of flight time per battery, covering up to 400 hectares (approx. 990 acres) in a single mission.
Wingspan: 1.2 meters, allowing for easy transport and hand-launch capability in remote staging areas.
RTK/PPK Integration: Enables survey-grade outputs without deploying dozens of ground control points across active blast zones.
Weather Resilience: Operational in winds up to 45 km/h, a critical factor in the gusty high-desert conditions of Idaho and Wyoming.
Meinecke emphasized that the UX11’s seamless integration with Wood’s existing software ecosystem was equally decisive. “We needed a platform that could talk to our AutoCAD, Trimble Business Center, and Pix4D workflows without expensive middleware or proprietary data formats. The UX11 delivers raw, industry-standard geotiffs and orthomosaics that go straight into our clients’ mine-planning models.”
From Volumes to Invoices: The Quantification Payoff
For mine owners and quarry operators, the ultimate test of any survey technology is its ability to produce legally defensible quantity measurements. Discrepancies in stockpile volumes or excavated tonnage can lead to contractual disputes, delayed payments, and regulatory non-compliance.
Wood’s team uses the UX11-derived data to generate cut-and-fill analyses, stockpile inventory reports, and progressive site-progress documentation. The centimeter-level precision ensures that the volume of material removed—whether phosphate ore, overburden, or aggregate—is quantified with a margin of error so low that all stakeholders, from owners to contractors to state regulators, accept the figures without contention.
“The accuracy gives our clients confidence that what we’re billing for or reporting is exactly what came out of the ground,” Meinecke added. “It removes the guesswork and the arguments. That’s worth more than the hardware cost alone.”
Operational Deployment: Remote, Rugged, Reliable
Wood’s initial UX11 missions have been conducted in some of the most logistically challenging environments in the continental U.S. The remote phosphate fields of southeastern Idaho and the high-altitude basins of Wyoming offer no cellular coverage, limited road access, and extreme temperature swings. In these conditions, the UX11’s lightweight composite airframe and modular battery system have proven exceptionally reliable.
The firm has already cross-trained multiple pilots on the platform, including surveyors who had never previously flown fixed-wing aircraft. The UX11’s autonomous flight planning—via Delair’s proprietary mission-control software—allows operators to focus on data quality rather than manual stick-and-rudder piloting. Automated landing via a belly-mounted ultrasonic altimeter and airbrake system recovers the aircraft within a 10-meter radius, eliminating the need for nets or runways.
Beyond Mining: A Template for Infrastructure
While the current deployment is squarely focused on mining and quarrying, Wood has signaled clear intent to expand the UX11’s role across its broader U.S. portfolio. The firm’s infrastructure, construction, and environmental divisions are already evaluating the platform for:
Linear corridor mapping for pipeline and transmission line routes.
Construction progress monitoring for large-scale earthworks projects.
Environmental baseline studies and post-reclamation topographic verification.
Given Wood’s global footprint—with over 35,000 employees across 60 countries—the success of the western U.S. rollout could well influence procurement decisions in other regions, particularly in Australia, Latin America, and Africa, where the firm manages some of the world’s largest resource extraction projects.
The Bigger Picture: Drones as Standard Equipment
Wood’s adoption of the UX11 is not an isolated experiment. It reflects a broader industry trend where major EPC (Engineering, Procurement, and Construction) firms are moving drones from novelty status to standard field equipment, alongside total stations and GNSS rovers. The shift is driven as much by data density as by safety: a single UX11 mission can generate more than 10,000 georeferenced images, producing a 3D reconstruction of a mine site that would take weeks to replicate with terrestrial methods.
For quarry operators specifically—where margins are tight and material pricing depends on accurate tonnage—the UX11 offers a rapid, repeatable method to reconcile monthly inventory with sales figures, reducing shrinkage and improving cash flow forecasting.
Conclusion: Precision at Scale
Wood’s decision to adopt the Delair UX11 for large-scale surveying and quantity measurement is a clear signal that the era of helicopter flyovers and boot-on-the-ground traverses is waning for major industrial sites. By combining long endurance, survey-grade PPK accuracy, and rugged operational simplicity, the UX11 has proven itself as more than a drone—it is a force multiplier for Wood’s survey teams.
As Meinecke succinctly put it: “We’re not just flying for photos. We’re flying for data that makes our clients money and keeps our people safe. The UX11 delivers on both fronts.”
With additional deployments already in the pipeline and a growing roster of trained pilots, Wood is poised to turn this initial adoption into a standardized workflow—one that will likely become the benchmark for drone-based surveying across the mining and quarrying sectors in North America.
About Wood: Wood is a global leader in consulting and engineering, delivering solutions across energy, materials, and built environments. The company combines project management, technical design, and digital innovation to optimize asset performance throughout the project lifecycle.
About Delair: Delair is a leading provider of professional UAV solutions, specializing in high-accuracy fixed-wing and quadrotor systems for survey, mapping, and inspection applications worldwide.
