Maritime and coastal surveillance

Maritime and coastal surveillance is fundamentally a problem of covering a large, open, and constantly moving area with limited fixed infrastructure. A coastline is long, the approaches to it are wide, and the surface being watched changes with tide, weather, and traffic. Crewed patrol aircraft and vessels are expensive to keep on station and cannot be everywhere at once, and fixed sensors see only as far as their mast height allows. ShadowVu approaches this domain the same way we approach every other: with one common platform across five airframes, selecting the airframe to match the range, endurance, and sensing the task demands, rather than fielding a separate maritime-only system that would carry its own training, spares, and maintenance burden.

For sustained watch over a wide area of water, endurance and forward speed are the properties that matter most, and the FW1 Hawk is the airframe built for that profile. As a fixed-wing aircraft with a 968 mm wingspan carrying 1.8 kg of payload internally and configured for long-range intelligence, surveillance, and reconnaissance, the Hawk converts forward flight into efficient coverage of open ground and open water. A single sortie can hold a watch over a stretch of coast or an offshore approach that a multirotor could not sustain on the same energy. The internal payload bay keeps the airframe aerodynamically clean, which preserves the predictable endurance that a maritime watch task depends on when there is no convenient place to land and reset over water.

Close-in tasks around harbours, moorings, installations, and shoreline points call for the multirotor airframes, which can hold position and examine a fixed object in detail. The QC1 Ranger, with 1.8 kg of external payload on its underslung mount, suits patrol and inspection of a harbour, a jetty, or a near-shore structure. The QC2 Huey, at 2 to 9.5 kg of external payload, carries heavier or combined sensor packages where a single hovering pass must capture more than one kind of data. Because these airframes share navigation, ground control, and the parts bin with the Hawk, a maritime operator can move between wide-area fixed-wing patrol and detailed multirotor inspection without operating two disconnected systems.

Detection over water is often a thermal problem before it is a visual one. A small vessel running without lights, a person in the water, or a warm hull against a cool sea is frequently easier to detect by heat than by eye, particularly at night or in poor visibility. The ShadowVu thermal gimbal payload addresses exactly this case, and it is complemented by an electro-optical camera for identification and confirmation once a contact has been detected. For search and rescue, for fisheries and border monitoring, and for the protection of coastal installations, the combination of a thermal sensor to find and an electro-optical sensor to identify, carried on the same fleet, covers the detect-and-confirm sequence that maritime surveillance depends on.

Persistent coverage of a fixed coastal site is the specific problem the Quad-Dock is built to solve. Much maritime surveillance is not a one-off patrol but a standing requirement to watch a defined stretch of water around the clock and in weather that discourages crewed operations. An autonomous weatherised dock positioned at a coastal site allows an aircraft to fly a scheduled beyond visual line of sight pattern over the approach, return, recharge inside the weatherised enclosure, and repeat, without a crew deploying for each launch. For a harbour authority, an installation operator, or an agency responsible for a length of coast, this converts intermittent patrol into continuous presence, which is the property that deters and detects rather than merely records after the fact.

Communications resilience is more demanding over water than over land, because the coastal and offshore environment offers fewer fallbacks. ShadowVu platforms support both mobile and satellite communication options, so an aircraft operating beyond reliable cellular coverage over open water can maintain its command and telemetry link by satellite. Navigation is RTK native, holding to within 1 to 3 metres in standard GPS mode and to centimetre accuracy with RTK, which matters when an aircraft must return precisely to a coastal dock, hold a defined patrol line, or mark the position of a detected contact accurately enough for a surface asset to be directed to it. Ground control through TAK and ATAK or QGroundControl allows the maritime picture to be shared with the wider coordination effort rather than held in isolation.

The maritime environment is unusually hard on equipment, which makes field resilience a core operational property rather than a secondary consideration. Salt, wind, and exposure degrade systems quickly, and an aircraft that must be returned to a workshop after every rough recovery is an aircraft that spends its life unavailable. ShadowVu airframes are field-repairable with ordinary tools, are designed to return to service after a thirty-foot drop, and are roughly 85 percent made in house with a three-minute Click-Fit assembly built to a TAKT time. The shared parts bin means the component that fails on a coastal sortie is the same component held for the rest of the fleet, and a replacement airframe can be assembled quickly rather than waiting on specialist labour at a distant depot.

There is a sovereignty dimension that is particularly relevant to maritime and coastal surveillance, because this domain often sits at the boundary of national security and border integrity. ShadowVu is a sovereign UK manufacturer with a secure supply chain and a stated pathway to remove China from that supply chain, which speaks directly to the concerns of an operator placing surveillance of national approaches in the hands of an uncrewed system. Our aircraft are shipped for surveillance or life-saving purposes only, under UK export guidelines and with an End User Certificate required, and ShadowVu UK is not ITAR restricted. For a procurement team, the maritime case reduces to a familiar ShadowVu proposition: match the airframe and payload to the stretch of coast and the watch requirement, add persistent presence through the Quad-Dock where the site is fixed, and sustain the whole capability from one common platform rather than a separate maritime fleet.