Aeronautics & Space

ADR designs and manufactures linear and rotating electromechanical actuators that meet the specific needs of controlled positioning, repeatability of movement, power and load capacity.

ADR linear and rotating electromechanical actuators combine high efficiency with a small size and low weight.

ADR relies on this innovative technology to develop optimized solutions for embedded systems and servitude management: emergency actuators, secondary flight control actuators, etc.

ADR designs and manufactures a wide range of high-precision ball bearings that comply with the most demanding technical specifications and are EN9100 certified.

The materials, liquid or solid lubricants and manufacturing processes are qualified and field proven. The range of ADR's bearings is vast: from 1 to 330 mm and up to ABEC 9 (ISO 2). They guarantee high reliability and resistance in the most restrictive environments: vibration, thermal, climatic, speed, etc.

ADR ball bearings are present in various aeronautical and space equipment and instruments such as valves, pumps, actuators, turbochargers, and more.

ADR designs and manufactures preloaded duplex ball bearings.

ADR bearings guarantee the best compromise of stiffness and friction torque while optimizing the weight, dimensions and cost of the equipment. This specific design uses qualified materials and liquid or solid lubricants and is responsible for the excellent performance and repeatability of behavior of these bearings.

Assembly and final inspections in a clean room ensure a high level of cleanliness and spatial compatibility. ADR integrated bearings are in particular used in satellite mechanisms such as the deployment of solar panels or antennas (SADM), engine orientation, inertia wheels, filter wheels, etc.

For over fifteen years, ALSYMEX has designed and manufactured invar molds with specific deformation profiles used for manufacturing geostationary satellite antenna reflectors.

Based on theoretical data and using specific semi-finished equipment supplied by the client, ALSYMEX manufactures, machines and polishes reflectors with a diameter of up to 3 m within a maximum period of thirty days.

The experience acquired from over 50 years in manufacturing of tube fittings for nuclear applications with a very high level of safety and dependability is what makes ALYNOX able to offer competitive, alternative solutions for Aeronautics & Space applications.

The components manufactured by ALYNOX, in stainless steel and/or nickel alloy (Inconel), using an innovative hydro-forming technology, have high-performance mechanical properties and enable substantial on-board weight savings.

By way of an example, ALYNOX produces Inconel fittings installed on the fuel circuit of the A400 M's engines.

ALYNOX also has a line of ABF three-piece machined fittings, which are removable and have metal-metal sealings (250 bar – 600 °C). Their design can be adapted to any of our clients' needs (SW, BW, threaded, etc.). 

ATMOSTAT designs and manufactures a range of effective safety device solutions for propulsion systems:

• Aeronautical non-return valves
• Subsea safety valves
• Tank lids

ATMOSTAT designs and manufactures speed sensors that are fin-shaped to measure pressure while avoiding the scoop effect.

Designed with technical support from ONERA, they have undergone ground and in-flight testing that successfully validated the concept. These tests reveal the presence of a strong signal communicating precise and efficient information in all flight conditions (high altitude, extreme frost conditions, heavy rain, etc.). 

ATMOSTAT speed sensors are designed to be installed in lieu of existing Pitot probes. The algorithm of the Air Data measuring chain simple needs to be updated. 

The shape of the sensor and the natural protection of pressure measures (no scoop effect) mean that the equipment will not be affected by extreme frost. There is also a significant reduction in the electrical heating power required in the event of frost and a significant reduction in weight.

ATMOSTAT studies and designs cooling systems based on two-phase liquid loops. These upstream theoretical and experimental studies involving two-phase cooling issues have now enabled a global industrial solution to be offered for thermal management of new-generation high heat flow density power electronics (thermal flux).

Thermal transfer components line – DIPHASIK^®:

• Fully sealed miniature pump
• Condenser
• Dynamic evaporator
• Fluid (phase change)
• Fully sealed fluid connector

ATMOSTAT designs and manufactures a line of flow control valves intended for propulsion subassemblies of satellites engines, with a thrust ranging from 1 to 500 N and either monopropellant or bipropellant.

With a robust and field-proven design, ATMOSTAT valves are "Flight Proven" certified. They are primarily used in apogee engines of geostationary satellites (telecom) and in propulsion systems of small satellites in low orbit for altitude control.

Also used in custom space applications from off-the-shelf equipment, ATMOSTAT valves are adapted to the most demanding requirements, especially those expressed in launch vehicle applications or scientific space missions.

PMB designs and manufactures customized ceramic-metal components and assemblies. The quality of its production relies on its historical, recognized expertise in the assembly of dissimilar materials by vacuum brazing.

Manufacturing processes cover preparation, machining, surface treatment, controlled atmosphere vacuum brazing and welding.

PMB manufactures ceramic-metal penetrations, kicker chambers, connectors subjected to severe environments and pyrotechnic igniters. 

TRONICO designs and manufactures electronic assemblies and offers a wide range of reliable and durable solutions to optimize manufacturing. 

The TRONICO industrialization service facilitates and supports the transition from prototypes to mass production:

• FMECA* Purchasing/Procurement: TRONICO manages risks and obsolescence through FMECA and its market knowledge
• FMECA* Process: TRONICO evaluates and manages production risks through the FMECA process 
• DfX:
  • DfM (Design for Manufacturing): analysis of manufacturability of PCBs and integrations
  • DfT (Design for Test): definition and optimization of testing strategy
• Design to cost: design methodology at objective costs

(* Failure Mode, Effects and Criticality Analysis)

TRONICO designs, integrates and commissions automatic testing equipment for determining the conformity of electronic aeronautical equipment.

Pairing different production tests with a final functional test, TRONICO offers an optimal strategy suited to each electronic product.

Based on test specifications from its design office or its clients', TRONICO defines an architecture, chooses the equipment, defines an ergonomic MMI (Man-Machine Interface), wires the equipment to the interface of the system to be tested (by connectors or bed of nails) and trains operators.

The modularity of TRONICO's benches enables several circuit boards to be tested on the same bench, ensuring that certain economic constraints are respected. Automation of the test sequences, up to the issuance of the report, simplifies and streamlines day-to-day bench use for the operator.

At the cutting edge of electronic component technology, TRONICO has established a components engineering laboratory to ensure the reliability of current designs and to come up with the technological solutions of tomorrow.

TRONICO maintains a vast library of programs and has acquired considerable experience in the Medical, Energy, Aeronautics, Defence & Security and Transport sectors.

TRONICO's components engineering laboratory offers services such as:

• Incoming inspection
• Construction analysis
• Component characterization
• Life testing
• Obsolescence management
• Long-term storage

TRONICO develops and manufactures high-performance energy converters by combining its expertise (particularly in special flip chip bonding technologies - HEXAT^®) with the know-how of the laboratory G2ELab.

TRONICO offers innovative solutions compatible with the challenge of power-density increases necessary for tomorrow's aircraft. From a few watts to tens of kilowatts, TRONICO's expertise covers a wide range of powers for numerous applications.

LERITY designs and manufactures instrumentation periscopes able to be deployed in flight for a high-definition, real-time view of the aircraft equipment while in operation as well as the air flows outside the aircraft.

The observation periscopes have several motorized HD cameras on 3 axes allowing for a close observation of equipment. Images are displayed in real time, on board, for analysis by test engineers and are also transmitted to the ground for recording and interpretation in the testing laboratory.

Qualified for high-altitude test flights, LERITY supplies this aeronautical instrument to aircraft manufacturers.

LERITY has been designing and manufacturing HUD (Head-Up display) cameras for military aircraft for close to two decades. These cameras enable simultaneous recording of the HUD symbols and the field of vision observed by the pilot.

LERITY develops real-time embedded algorithms for enhanced image dynamics. The HUD cameras are suitable for extreme conditions (blinding light and sunshine, landing, pressurization, temperature, humidity, etc.) for any type of aircraft or helicopter (mission and training with "Replay" function).

LERITY supplies DASSAULT AVIATION (RAFALE, MIRAGE 2000 and MIRAGE F1), BOEING (F-15 of the USAF and F-18 of the US NAVY), HAL (LCA Tejas) as well as trainer aircraft such as the Alpha Jet and the ORLIK PZL-130.

LERITY cameras are RTCA - DO-160 qualified and certified as compliant with standards DO-254 and DO-178. 

PMB produces non-destructive X-Ray testing systems combining a high X-ray energy LINAC (linear particle accelerator) with an imaging and handling system. The performance of these systems relies on the use of computerized tomography techniques that combine X-rays with computers to produce images of the inside of the object being inspected. The PMB systems therefore provide cross-sectional and three-dimensional images of the inspected components.  They combine precise detection of faults in complex structures, without altering the properties, with a very simple computer interface.

These non-destructive X-Ray testing systems are used in particular to test components and machines in aeronautics and space. These components are subjected to difficult environments and extreme conditions. They require precise and rigorous inspection in order to identify any internal faults.

ALSEAMAR operates 24/7 in the event of air accidents to quickly locate black boxes, covering every sea in the world.

To do so, the company uses its 20 years of experience in subsea acoustics and the two long-distance acoustic detection systems ALSEAMAR has developed and operates in the event of accidents, the DETECTOR-1000 and the DETECTOR-6000.

The turnkey service offered by ALSEAMAR includes: - dispatch to the site of equipment and personnel to conduct searches, - deployment and recovery of DETECTOR, and - issuance of a mission report.

Submerged 1,000 m under the sea, the DETECTORs are capable of detecting and distinguishing the low noise levels of a flight recorder from the background sea noise at up to a depth of 4,000 meters.

ALSEAMAR successfully intervened in 2016 to locate the black boxes of EgyptAir flight MS804 at a depth of 3,000 m in the Mediterranean sea. The company has also intervened successfully in Sharm El Sheikh (Red Sea) and Sochi (Black Sea). 

The location process can take a few hours or a few days, depending on the size of the search area and the meteorological conditions.

ALSYMEX offers its customers solutions combining the machining and assembly –in particular by welding– of large, high-precision mechanical components and subassemblies.

ALSYMEX brings together the industrial resources and expertise of six former subsidiaries of the ALCEN Group: ALSYOM, ALYNOX, ATMOSTAT, CHAMPALLE, SEIV and SIRATECH.

Some key ALSYMEX projects:

• Manufacture of flaps for the Rafale engine
• Manufacture of Rafale and Falcon 5X assembly tools
• Design and manufacture of assembly tools for Airbus
• Manufacture of molds for the production of composite aircraft subassemblies
• Manufacture and polishing of molds for satellite antennas 

ATMOSTAT offers an integration service, including for exotic materials, during design of complex systems. Lengthy, solid experience acquired in major projects in the Space, Aeronautical and Fusion sectors means that it can guarantee full management of property, personal and environmental protection engineering.

ATMOSTAT experts intervene in the early stages of a project, from the architecture of the client solution (particularly in the infrastructure and product interface definition and operational checking phases in the user environment) to systems and equipment support engineering, throughout the solution's life cycle. 

ATMOSTAT conducts studies (when feedback is lacking) for evaluating the ageing capacities of equipment, parts and systems according to a predictive ageing study originally developed by the company for its own needs.

The APASE^® method identifies the types of ageing, puts them in order of importance, assesses the impact of each type, proposes ways to reduce their impact, establishes a global ageing model and assists in establishing a maintenance strategy.

CHAMPALLE designs and manufactures automated systems using PLCs, control and operating equipment (industrial control panels) and a man-machine interface for the monitoring, integrating and programming of robots.

TRONICO offers a wide range of electronic design studies and production services specific to the Aeronautical, Defence & Security and Space markets:

• Energy storage and conversion
• Power electronics
• Communication & networks
• Radiofrequency
• Digital electronics/FPGA/µC
• Embedded software
• Ruggedized ECUs
• High temperature
• etc.

Products, from DAL A to E, are developed in line with guidelines ARP 4754A, DO-178C, DO-254 and DO-160G, as well as with the reliability prediction handbook MIL-HDBK-217F instruction 2 and the FIDES guide.

A dedicated quality department ensures compliance with internal processes and standards.

An experienced team analyzes and develops products to meet dependability requirements (RAMS: Reliability, Availability, Maintainability and Safety).