Aviation
Laser Attacks On Aircraft : Metamaterial Technologies Inc. Partners with Airbus to Co-develop and Commercialize metaAIR™, a Laser Protection Solution
HALIFAX, Feb. 21, 2017 /CNW/ – Metamaterial Technologies Inc. (MTI) and its optical filters division, Lamda Guard, announced today, February 21st, that it has entered into a new agreement with leading aircraft manufacturer Airbus to validate, certify, and commercialize its laser protection product metaAIR™, for aviation. In 2014, MTI signed its first agreement with Airbus to test and tailor metaAIR™, which is a flexible metamaterial optical filter, engineered to protect vision against harmful laser beams aimed at aircraft.
Laser strikes on commercial aircraft are rising globally and laser pointers are increasing in power and decreasing in price. Lasers can distract pilots during critical phases of flight and can cause temporary visual impairment. In 2015, according to the Federal Aviation Administration (FAA), the number of reported laser incidents nearly doubled to 7,703 in commercial aviation. In 2015, there were 1,439 laser incidents reported to the Civil Aviation Authority (CAA) in the UK and there were almost 600 reported by Transport Canada
“We know from facts and conversations with clients that cockpit illuminations are real, immediate and increasing in frequency, and metaAIR will benefit our customers,” said Pascal Andrei, Vice President, Chief Product Security Officer at Airbus. “We also see an increasing number of possible applications for metaAIR, beyond the commercial aircraft division.”
MTI is a great example of Airbus “start-up 2 partner” program led by Elsa Keïta from Airbus Corporate Innovation. This program aims at building mutually beneficial partnerships with disruptive innovators and Airbus has been working in a successful and collaborative approach with MTI to accelerate their laser protection solution for the benefit of its customers.
“Our objective is to place Canada and its citizens on innovation’s leading edge. The presence of Airbus here today demonstrates that highly skilled Canadian researchers and entrepreneurs, like those at MTI, are creating innovative solutions to global problems,” said the Honourable Navdeep Bains, Canadian Minister for Innovation, Science and Economic Development and Minister responsible for the Atlantic Canada Opportunities Agency.
“We look forward to continuing our relationship with Airbus as we move to commercialize metaAIR. Together we will be able to make a positive impact on the aviation industry around the world,” said Maurice Guitton, MTI Board Chairman.
“Today marks another milestone in our strategic partnership with Airbus. We are given the opportunity to propel our platform technology and learn from some of the top aerospace engineers while understanding the rigours of developing a product for the aerospace industry,” said George Palikaras, MTI Founder and CEO. “metaAIR will provide vision protection to pilots in the aviation industry and can offer solutions in other industries including the military, transportation and glass manufacturers.”
MTI has also developed a partnership with Covestro, one of the world’s leading companies for high-tech polymers. Covestro supplies a custom Bayfol® HX photopolymer film for the manufacturing of metaAIR™.
“MTI is at the cutting edge of optical applications. They have developed a unique optical filter that is different from anything currently available on the market, and we have been working with them for the last two years to provide a speciality photopolymer material film and support the required volume,” said Thomas Fäcke, responsible for marketing and business development of photopolymer films at Covestro. “Safety is very important to our company, and we are excited to be a part of this solution.”
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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