Aviation
First A380 Dismantling project completed : TARMAC Aerosave
TARMAC Aerosave, the leading aircraft storage, maintenance and recycling company in Europe, has just completed the first ever A380 dismantling project, a pioneering operation that was announced a year ago. Already recognised as the expert in storage for this superjumbo jet, TARMAC Aerosave is bringing the three other major areas of competence in the Pyrenean group to bear on this aircraft: transition, recycling and very soon maintenance, a B check being announced for March.
TARMAC Aerosave has completed the first A380 dismantling project, which was launched at the beginning of this year. TARMAC Aerosave managed this project in collaboration with the aircraft owner, the German Dr Peters company, and the end of life manager, the American company VAS Aero Services for the sale of the spare parts.
This A380 benefited from the TARMAC Aerosave’s exclusive eco-responsible services (cold-cutting, lubricating, draining, selective sorting) which made it possible to recycle over 90% of the overall mass. Spare parts are thus now available on the pre-owned market. A second dismantling project is under way.
It is now time to analyze the feedback after this operation, which required the development of new processes and made-to-measure tools. The complex dismantling of all of the parts required all of the expertise of TARMAC Aerosave in the design of cradles and fuselage-moving equipment.
During the dismantling phase for heavy parts at height, personnel safety procedures were strengthened.
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Future A380 storages and transitions
Since it is TARMAC Aerosave’s first activity, other aircraft of this type are currently in storage and in transition. The French group is in fact offering its hangars and parking areas that have been specially built for the A380, on its site at Tarbes. The same capacity is being developped in Teruel (Spain). Maintaining them in operational condition makes it possible for them to re-enter service at any moment.
Since 2007, 560 aircraft from all manufacturers, out of a total of 850 stored, have re-entered service.
TARMAC Aerosave is announcing that a B Check will take place in March 2020.
Already certified for all types of maintenance on commercial airplanes, TARMAC Aerosave is adding this service to its “one-stop-shop” offer. For A380’s, TARMAC Aerosave also has expertise in cabin modification and technical uprating based on the manufacturer’s latest recommendations
Airbus BelugaXL enters service, adding XL capacity to the fleet
(Implementation Service Bulletins)
TARMAC Aerosave’s transition centre is now able to ensure all types of operations relating to management of an airplane withdrawn from service and throughout its life cycle. This is the only service of this type on offer worldwide.
“We are very proud of these industrial successes, obtained with the largest airplane currently in service in the world. TARMAC Aerosave is pursuing its goals in innovation and adaptation in the air transport market, anticipating its customers’ needs and the evolution of environmental standards.” says Patrick Lecer, President of TARMAC Aerosave.
Aviation
Exploring the Different Types of Helicopter Rotor Systems and the Science Behind Them
Helicopters are unique aircraft that use rotating blades, called rotors, to generate lift and enable flight. The design of these rotor systems is crucial because it affects how helicopters perform, maneuver, and respond to different flying conditions.
There are several types of helicopter rotor systems, each with its own advantages and specific uses. Understanding these systems helps us appreciate the engineering behind helicopters and their diverse capabilities, from search and rescue missions to military operations and aerial photography.
In this Video, we will explore the main types of helicopter rotor systems and how they contribute to the helicopter’s functionality and performance.
1. Single Rotor System
The single rotor system is characterized by a single main rotor blade that is responsible for generating lift. To counteract the torque produced by this rotor, a tail rotor is used. This setup is essential for maintaining directional control and stability during flight.
Uses: This design is prevalent in most conventional helicopters, including iconic models such as the Bell 206 and the Robinson R22. The simplicity of the single rotor system not only reduces mechanical complexity but also enhances efficiency. As a result, it is favored for a variety of applications, including aerial tours, law enforcement, and emergency medical services, where reliability and straightforward operation are paramount.
2. Tandem Rotor System
The tandem rotor system features two parallel rotors of equal size that rotate in opposite directions. This counter-rotation helps to cancel out the torque that each rotor would otherwise produce, resulting in a balanced and stable flight profile.
Uses: This configuration is typically employed in heavy-lift helicopters, such as the CH-47 Chinook. The tandem design allows for an increased payload capacity and enhanced stability, making it particularly effective for transporting troops, equipment, and supplies in military operations, as well as for civilian applications like logging and construction, where heavy lifting is required.
3. Coaxial Rotor System
The coaxial rotor system consists of two rotors mounted one above the other on the same mast, rotating in opposite directions. This innovative design minimizes the need for a tail rotor, allowing for a more compact helicopter structure.
Uses: Coaxial rotor systems can be found in helicopters such as the Kamov Ka-50. This design offers several advantages, including enhanced lift capabilities, improved maneuverability, and better control in various flight conditions. These features make it particularly suitable for military applications, where agility and quick response times are crucial, as well as for specific civilian operations that require high performance in tight spaces.
4. Intermeshing Rotor System
The intermeshing rotor system consists of two rotors that rotate in opposite directions while intersecting each other, but without colliding. This unique configuration creates a highly efficient aerodynamic profile.
Uses: This system is utilized in helicopters like the Kaman K-MAX, designed specifically for heavy lifting and aerial work. The intermeshing rotors provide remarkable stability and lift capabilities, making it particularly effective for operations in confined spaces, such as urban environments or dense forests. It is ideal for missions that involve heavy external loads, including construction, firefighting, and disaster relief efforts.
5. Transverse rotor system
The transverse rotor system has two parallel rotors that spin in opposite directions, improving lift and stability. This design enhances the aircraft’s aerodynamic efficiency and maneuverability.
A notable example of this system is the V-22 Osprey, a tiltrotor aircraft that merges helicopter vertical lift with the speed of a fixed-wing plane. allowing the Osprey to operate in tough environments like urban areas and remote locations. It can carry heavy loads and personnel, making it suitable for troop transport, search and rescue, medical evacuation, and logistical support in military operations. Overall, the transverse rotor system enhances the V-22 Osprey’s effectiveness and operational flexibility.
6. Compound Rotor System
The compound rotor system combines traditional rotor systems with fixed wings and other aerodynamic features to enhance efficiency and speed. This hybrid approach allows for greater aerodynamic performance than standard rotorcraft.
Uses: Advanced helicopters like the Sikorsky X2 and Boeing’s DBF (Defiant) utilize the compound rotor system. These helicopters are designed for higher speeds and longer ranges, making them suitable for military operations, search-and-rescue missions, and law enforcement tasks where rapid response and extended operational capabilities are essential.
7. NOTAR system
NOTAR system replaces the traditional tail rotor with a ducted fan and directional airflow to counter the torque from the main rotor. It works by pushing air through the tail boom and out through side vents, creating thrust that stabilizes the helicopter. This design reduces noise, boosts safety, and cuts down on maintenance.
Uses: The NOTAR system is found in helicopters like the MD 520N and MD 902 Explorer. Without an exposed tail rotor, it lowers the risk of rotor strikes, making it safer for operations in tight spaces. Its quieter performance is ideal for missions where low noise is needed, such as urban air operations, police work, and medical evacuations.
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