A construction project is a schedule before it is anything else, and a schedule can only be managed against a current and accurate picture of the site. This article sets out how ShadowVu turns regular aerial capture into progress models, earthworks volumetrics, structural inspection and site security from one platform.
A construction project is a schedule before it is anything else, and a schedule can only be managed against an accurate, current picture of the site. Ground-level walkarounds and static photographs capture fragments: they do not measure the whole site, and they do not measure it the same way twice. Regular aerial capture closes that gap by producing a complete, georeferenced record of the site at a fixed cadence, from which progress, earthworks and quality can be assessed against the design. ShadowVu builds the airframes and the payloads to make that capture a routine part of site management rather than an occasional exercise.
The core deliverable is a survey-grade model of the site. Flown with an RTK survey payload and centimetre-accurate positioning, a ShadowVu airframe records overlapping imagery that is processed into an orthomosaic and a three-dimensional surface. Captured weekly, these models form a time series that can be compared directly against the design or the building information model, so the team sees where work is ahead, where it is behind and where what was built departs from what was drawn. Positional accuracy from RTK means the models register against one another and against the site grid closely enough to measure real change.
Earthworks are the first place aerial survey pays for itself. Cut and fill volumes, material stockpiles held on site and the progress of bulk excavation are all measured from the same surface models used for progress, computed against a base surface or a prior survey. A quantity that was previously estimated or measured by a surveyor on foot becomes a figure derived from a full site capture, which supports valuation, reconciliation of imported and exported material, and early identification of a groundworks package drifting from plan.
Cadence is easier to sustain when the aircraft lives on site. The Quad-Dock, an autonomous weatherised dock, enables beyond visual line of sight flights from a fixed point on the project, so a scheduled capture can run without a pilot mobilising for each visit. The aircraft launches on schedule, flies the site, and returns to the dock to recharge under weather protection. A weekly progress model, a daily security overflight or an on-demand capture ahead of a client visit all become a matter of scheduling rather than of arranging a separate survey.
Beyond the whole-site model, the fleet inspects individual structures. The QC1 Ranger carries an electro-optical camera to high-level facades, roofs and structural steel that would otherwise require access equipment, and a thermal gimbal to the building envelope, where temperature differences reveal missing insulation, water ingress and air leakage before they are visible. The heavier QC2 Huey carries larger sensor loads where a task demands them. Inspecting at height from the air removes people from ladders, scaffolds and mobile platforms for routine condition checks.
A live construction site is also a security and safety responsibility. Scheduled overflights provide an overwatch of the whole site, and a thermal payload flown after hours detects people and vehicles in low light, supporting site security and the protection of plant and materials. The same regular record assists safety management by documenting site conditions, access routes and the position of temporary works over time, so that a question about what the site looked like on a given date can be answered from the archive rather than from memory.
A building site is an unforgiving place for equipment, with dust, changing weather and constant movement of plant. ShadowVu platforms assemble in roughly three minutes using the Click-Fit method, are field-repairable with ordinary tools after a thirty-foot drop, and are approximately 85 percent manufactured in house. Because the five airframes share a common parts bin, a site team holds one inventory and learns one maintenance procedure. An aircraft knocked out of service in the morning can be back in the air the same day, which is what keeps a weekly capture programme intact across a long build.
Navigation runs from one to three metres on standard GPS to centimetres on RTK, ground control is provided through TAK, ATAK and QGroundControl, and communications use mobile or satellite links as the site requires. The platform is manufactured in the United Kingdom through a secure supply chain, which matters on projects with security or sovereignty requirements. For a contractor or a client weighing procurement, the case is a single platform that delivers progress models, earthworks volumetrics, structural inspection and site security together, and that scales from one project to a portfolio. Managed against an accurate weekly picture, a programme is far harder to surprise, and that is the return an aerial capture regime is meant to deliver.
ShadowVu® is a UK registered trademark and Quad-Dock™ is a trademark of ShadowVu Ltd. Capacity figures quoted are designed platform targets at full build-out.