Airbus Helicopters hosted its first dedicated Flexrotor Expeditionary UAS showcase in Africa at the Overberg Test Range in the Western Cape at the end of May 2026. The company was represented by Nam-Binh Hoang, Managing Director of Airbus Southern Africa, and Xavier Giry, Flexrotor Product Marketer.
The demonstration gave Airbus an opportunity to present the Flexrotor against a broad set of missions relevant to African operators, including maritime surveillance, fisheries monitoring, illegal activity detection, anti-poaching, border control, firefighting support, and land and maritime search and rescue. Many of these missions are shaped by distance, limited infrastructure, remote operating sites and the need for persistent observation before a manned aircraft, vessel or ground team is committed.
Equally important is the Flexrotor’s maintenance approach, which is focused primarily on the engine, with the rest of the aircraft managed on condition. This maintenance model is particularly relevant in markets where supply chains can be stretched and aircraft may need to operate far from permanent facilities. Hoang indicated that Airbus could support Flexrotor customers through approaches already used for its helicopter fleet, including customer-held spares near their operating base or Airbus-supported stock through its Johannesburg facility.
Airbus also outlined several possible ownership and operating structures for the Flexrotor, depending on the customer’s capability and requirements. These include government-owned and government-operated systems, government-owned and contractor-operated systems, and contractor-owned and contractor-operated models, where a service provider owns the aircraft and sells the capability as a service to government authorities or other users.
The contractor-owned and contractor-operated model may be relevant in African markets where agencies require surveillance or response capability but do not want to establish a full unmanned aviation operation from the outset. It also mirrors the way some specialist aviation services are already procured, with mission capability purchased as a service rather than through direct ownership.
Airbus Helicopters Unmanned Aircraft Portfolio and the Flexrotor
Airbus Helicopters’ unmanned aircraft portfolio extends from light tactical systems to larger unmanned platforms designed for logistics and advanced mission profiles. At the lighter end of the range are systems such as the Aliaca and the Flexrotor, both with a maximum take-off weight of 25 kg. At the heavier end, Airbus Helicopters has developed concepts such as the VSR700 and the unmanned logistics connector based on the BK117 platform, while Airbus Defence and Space covers larger MALE and HALE unmanned aircraft systems.
Within the wider portfolio, the Flexrotor occupies a distinct operational position. It is a small tactical vertical take-off and landing uncrewed aircraft system designed primarily for intelligence, surveillance and reconnaissance missions. Its relevance lies in the way it combines vertical take-off and landing with fixed-wing endurance, a compact deployment footprint and a payload architecture that can be adapted to different mission requirements.
The aircraft takes off and lands vertically, using the same operating principle as a helicopter for the launch and recovery phases. After climbing to a pre-set height, determined by the mission and the surrounding environment, it transitions into horizontal flight and flies like a fixed-wing aircraft. During that transition, the landing legs close and the aircraft’s design reduces unnecessary drag. The main propeller provides horizontal propulsion and lift during take-off and landing, while two single blades on the wingtips counter torque during the vertical phase. In forward flight, those wingtip propellers are feathered to reduce drag.
This configuration gives the Flexrotor a profile that is different from conventional multirotor systems and fixed-wing unmanned aircraft. It does not require a runway or separate launch and recovery equipment, but once airborne it is not limited to the endurance profile normally associated with multirotors. The aircraft is designed to use vertical flight only for take-off and landing. It is not intended to hover over a target during the mission. Instead, it uses low-speed forward flight and tight turning performance to loiter discreetly around an area of interest.
This approach supports long-duration surveillance from a small platform. In a typical operational configuration, the Flexrotor can fly for around 12 to 14 hours and carry up to 8kg of payload within its 25kg maximum take-off weight. The aircraft is approximately 2m long in flight, with a wingspan of around 3m. Its compact size, combined with a relatively high payload fraction, gives operators a small tactical UAS that can carry meaningful mission equipment while remaining within a lighter regulatory category.
The 25kg weight class is an important part of the system’s operating logic. Above that threshold, unmanned aircraft are generally subject to more restrictive regulatory treatment. By remaining at 25kg, the Flexrotor is positioned for greater ease of use and a more flexible approval environment, while still offering a useful ISR payload. The aircraft is equipped with ADS-B, although operations still require appropriate segregation and regulatory approval.
Deployment is built around an expeditionary model. The system is transported in rugged cases, with the mounting table integrated into the case. When fully loaded, the case weighs around 50 kg and is fitted with wheels and a handle, allowing it to be moved by one person. When unloaded, the case weighs around 30 kg. The complete system can be carried in a vehicle and deployed from locations such as a ship, truck, remote site or mountain area.
The preparation process is designed for a small team. From unpacking to flight readiness, including fuelling and flight-plan preparation, the aircraft can be prepared in roughly 30 to 35 minutes. The setup itself is simple and requires limited tooling. A remote starter is used to save onboard weight, with one operator connecting and removing the starter. Once the aircraft is running, a single person can operate it.
The launch and recovery footprint is one of the Flexrotor’s defining features. The aircraft requires only a 3.7 m by 3.7 m area and does not need dedicated launch or recovery equipment. This supports use from confined spaces, including maritime platforms and remote land sites. Shipborne operation is a key part of the aircraft’s design case. The Flexrotor has been tested from small patrol vessels with deck obstacles such as fences and masts around the launch and landing area. Its take-off and landing are fully automatic, with the operator setting the axis of take-off and recovery before the aircraft flies the manoeuvre.
The Flexrotor uses real-time kinematic positioning technology to support accurate launch and recovery. It can land on a moving ship by day or night and in degraded weather conditions because the landing process is automatic rather than manually flown. During take-off and landing, it can sustain winds of up to 27 knots and operate with pitch and roll of up to six degrees. Maximum speed is around 77 knots.
The Flexrotor stability during vertical phases is another design feature. With the propeller above and the centre of gravity below, the aircraft naturally returns towards a balanced position during take-off and landing. This is relevant for shipborne use, where stability during launch and recovery affects operational practicality.
The Flexrotor is also designed for low acoustic signature, a muffler was added during the maturity of the programme to reduce noise, and the Flexrotor is intended to remain difficult to hear at operational distance, particularly with a light breeze. Its small size also makes it hard to detect visually once it is some distance from the observer. This supports missions where discretion is operationally important, including surveillance of illegal activity, anti-poaching operations, border monitoring and search missions.
The Flexrotor is payload-agnostic, with payloads able to be mounted in the nose, under the belly or in the rear avionics bay. Qualified payloads include different gimbals with day cameras, infrared cameras and combined sensor configurations. The aircraft can also carry a small synthetic aperture radar under the belly and wide-area camera systems for missions such as poaching surveillance or broader area monitoring, with auto-tracking and auto-detection functions.
The rear avionics bay is designed with simple Ethernet connectivity, allowing operators to integrate different payloads without a dedicated connector or proprietary protocol.
For maritime missions, the payload combination can include AIS reception, radar or wide-area detection, and an electro-optical sensor for identification. AIS reception allows the aircraft to collect vessel transponder information, while radar or wide-area sensors can detect contacts. The optical payload can then be used to identify a vessel visually. In one demonstrated operating profile, the aircraft observed a cargo ship from 5,000 ft and nearly 5 km away, with sufficient sensor performance to read the ship’s name and port of registration.
This combination gives the Flexrotor application in fisheries surveillance, maritime patrol, illegal activity detection and wider maritime domain awareness. The aircraft was initially designed for missions that included poaching surveillance, illegal activity surveillance and fisheries monitoring. It has also been used for tuna fisheries surveillance, scientific missions in the Arctic, military operations, and maritime surveillance in areas including the Indian Ocean and the Caribbean Sea. It has been tested by naval, coast guard and special operations users, and has also been operated by civilian companies in areas such as firefighting support and surveillance of illegal ground activity.
On land, the aircraft’s mission set includes border surveillance, power line surveillance, conservation support, security operations and land-based ISTAR. The wide-area camera and infrared payload options support day and night observation. Low-speed loiter, a small visual profile and reduced noise support discreet monitoring over an area of interest. The aircraft can be deployed from remote sites, mountain areas or vehicle-supported positions, allowing operators to move the system close to the area of operation rather than starting from a prepared airfield.
Firefighting is another established application area. The aircraft can be used to detect hot spots, monitor fire-affected areas and support the identification of possible reignition after night operations. Infrared sensors can assist in smoke-affected conditions, although rain and precipitation can affect optical sensor performance. In this role, the aircraft provides surveillance and information rather than direct firefighting capability. It supports incident management by helping to identify where attention is required before aircraft or ground crews are committed.
Fuel and propulsion have also been shaped by operational requirements. The aircraft uses a small two-stroke engine and has very low fuel consumption, indicated at approximately 0.26 litres per hour. A heavy-fuel engine version has been developed for use with aviation fuel types including Jet A-1 and JP-5, with JP-8 naval fuel compatibility expected.
The engine is deliberately simple. This supports reliability and makes the system easier to sustain in operational environments. The aircraft is not designed for de-icing, as the weight and power requirement for de-icing equipment would be unsuitable for a 25 kg unmanned aircraft. It has, however, been tested and used in both hot and cold environments, including cold-chamber testing and Arctic scientific operations. The aircraft can operate up to 21,000 ft.
Data link options allow the aircraft to be used in different operating models. One configuration uses line-of-sight data link. Range can be extended by using additional ground stations positioned within line of sight. Another configuration uses SATCOM data link, including Starlink, to reduce dependence on ground stations. Mobile antenna options also allow control architecture to be adapted to field operations, including vehicle-based control.
The Flexrotor’s operating case extends beyond standalone UAS missions. Airbus Helicopters has also developed a helicopter-drone teaming concept that allows drones to be controlled from a helicopter through a ruggedised tablet-based human-machine interface. The installation includes a tablet, a modem and four antennas fitted to the helicopter. The system is intended to work across the Airbus Helicopters portfolio and is also designed to be drone-agnostic, allowing control of non-Airbus drones.
The purpose of the teaming concept is to allow a drone to be launched before a crewed helicopter enters the mission area. The unmanned aircraft can locate a target, monitor the area, transmit a live tactical picture and support command-and-control decisions. The helicopter can then be committed when crewed intervention is required. The crew can use the tablet interface to control the sensor, control the drone, adjust the flight path in real time and select the target or area to be observed.
This operating model has application in search and rescue, security, maritime operations and hostile-environment recovery scenarios. In a search and rescue mission, the drone can search, loiter and detect the target before a helicopter is sent for extraction or recovery. In a security mission, the unmanned aircraft can locate and report before a crewed aircraft or other response asset is committed. In a maritime or defence scenario, the drone can provide early detection and reporting before a helicopter is used for the intervention phase.
The development path for helicopter-drone cooperation has been under way since 2018. Demonstrations have included work with the Spanish Armada, the Singapore Air Force using an H225, an NH90 and the Spanish Armada using an H135 with one Flexrotor and one Spanish drone. The system has reached level four interoperability in demonstration with the H225, including control of the drone and its sensor. The tablet interface is intended to evolve through regular software upgrades, with at least annual updates planned.
The significance of this concept is operational rather than cosmetic. It allows the drone to take on the initial detection, surveillance and reporting phase, while the helicopter is preserved for the part of the mission that requires speed, lift, recovery capability, crew judgement or direct intervention. This can reduce unnecessary helicopter flying, save time, preserve pilot capacity and lower operating costs. It also allows a discreet unmanned asset to operate ahead of a more visible and more expensive crewed aircraft.
For operators, the Flexrotor offers two related capabilities. As a standalone UAS, it provides compact, long-endurance ISR from confined or remote launch sites. As part of a helicopter-drone teaming model, it becomes an extension of the crewed aviation mission system. In both cases, its role is to gather information before higher-cost or higher-risk assets are committed.
The Flexrotor operating logic is built around that sequence: deploy close to the mission area, launch from a small footprint, remain on task for an extended period, use the appropriate payload to detect or identify, and feed the information into the next operational decision. Whether used for maritime surveillance, fisheries protection, conservation, border monitoring, firefighting support, power line surveillance or search and rescue, the Flexrotor is positioned as a tactical ISR system designed to support decision-making before intervention.
