//www.koonmotors.com/news/matter_energy/aviation/ Aviation news. Read the latest in aviation, from bird-sized airplanes with shape-shifting wings and thinking mini-helicopters to liquid fuel-powered scramjets and more. en-us Sun, 10 Sep 2023 22:51:05 EDT Sun, 10 Sep 2023 22:51:05 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/aviation/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230830131930.htm In a milestone for artificial intelligence (AI), the AI system 'Swift' has beaten the world champions in drone racing -- a result that seemed unattainable just a few years ago. The AI-piloted drone was trained in a simulated environment. Real-world applications include environmental monitoring or disaster response. Wed, 30 Aug 2023 13:19:30 EDT //www.koonmotors.com/releases/2023/08/230830131930.htm //www.koonmotors.com/releases/2023/08/230823122608.htm Geoscientists have created a new method that can reconstruct the drift path and origin of debris from flight MH370, an aircraft that went missing over the Indian Ocean in 2014 with 239 passengers and crew. Wed, 23 Aug 2023 12:26:08 EDT //www.koonmotors.com/releases/2023/08/230823122608.htm //www.koonmotors.com/releases/2023/08/230823122513.htm New algorithms for trajectory planning and control of fixed-wing 'tailsitter' aircraft are faster and more efficient than traditional quadcopter drones. The algorithms can execute challenging maneuvers and are so efficient they can plan complex trajectories in real-time. Wed, 23 Aug 2023 12:25:13 EDT //www.koonmotors.com/releases/2023/08/230823122513.htm //www.koonmotors.com/releases/2023/08/230821114338.htm Zinc-air batteries have emerged as a better alternative to lithium in a recent study into the advancement of sustainable battery systems. Mon, 21 Aug 2023 11:43:38 EDT //www.koonmotors.com/releases/2023/08/230821114338.htm //www.koonmotors.com/releases/2023/07/230731110708.htm An unusual discovery is now being developed as an on-demand cooling solution for high-flying military electronics. 星期一,2023年7月31日11:07:08 EDT //www.koonmotors.com/releases/2023/07/230731110708.htm //www.koonmotors.com/releases/2023/07/230719150013.htm Researchers are using aluminum foil to create batteries with higher energy density and greater stability. The team's new battery system could enable electric vehicles to run longer on a single charge and would be cheaper to manufacture -- all while having a positive impact on the environment. Wed, 19 Jul 2023 15:00:13 EDT //www.koonmotors.com/releases/2023/07/230719150013.htm //www.koonmotors.com/releases/2023/07/230712011556.htm Using Japan's most powerful supercomputer, researchers reproduced cases of clear air turbulence around Tokyo. They simulated the fine vortices responsible for this dangerous phenomenon. The usefulness of the simulation in predicting turbulence was confirmed by comparing simulation data with data from aircraft recordings. This research should improve the forecasting of turbulence. Wed, 12 Jul 2023 01:15:56 EDT //www.koonmotors.com/releases/2023/07/230712011556.htm //www.koonmotors.com/releases/2023/06/230623161110.htm Air taxis may be coming to our cities in the near future, but a new study warns regulations will need to address dangerous wind gusts around city buildings and other urban infrastructure. Fri, 23 Jun 2023 16:11:10 EDT //www.koonmotors.com/releases/2023/06/230623161110.htm //www.koonmotors.com/releases/2023/06/230612200426.htm Researchers developed a machine-learning technique that can autonomously drive a car or fly a plane through a very difficult 'stabilize-avoid' scenario, in which the vehicle must stabilize its trajectory to arrive at and stay within some goal region, while avoiding obstacles. Mon, 12 Jun 2023 20:04:26 EDT //www.koonmotors.com/releases/2023/06/230612200426.htm //www.koonmotors.com/releases/2023/06/230609125715.htm Aerospace engineers designed a 1-megawatt electrical motor that is a stepping stone toward electrifying the largest aircraft. Fri, 09 Jun 2023 12:57:15 EDT //www.koonmotors.com/releases/2023/06/230609125715.htm //www.koonmotors.com/releases/2023/06/230608120936.htm New research shows that clear-air turbulence increased in various regions around the world from 1979 -- 2020. Thu, 08 Jun 2023 12:09:36 EDT //www.koonmotors.com/releases/2023/06/230608120936.htm //www.koonmotors.com/releases/2023/06/230607215853.htm Researchers have revealed the mechanisms that cause lithium metal solid-state batteries to fail. The new insights could help overcome the technical issues with solid-state batteries, unlocking a game-changing technology for electric vehicles and aviation. Wed, 07 Jun 2023 21:58:53 EDT //www.koonmotors.com/releases/2023/06/230607215853.htm //www.koonmotors.com/releases/2023/05/230524182045.htm The effects of the ground on propeller noise have now been measured experimentally. Wed, 24 May 2023 18:20:45 EDT //www.koonmotors.com/releases/2023/05/230524182045.htm //www.koonmotors.com/releases/2023/05/230518171954.htm Engineers have developed a prototype metamaterial that uses electrical signals to control both the direction and intensity of energy waves passing through a solid material. Potential applications of this innovative design include military and commercial uses, such as controlling radar waves by directing them to scan a specific area for objects or managing vibration created by air turbulence from an aircraft in flight. Thu, 18 May 2023 17:19:54 EDT //www.koonmotors.com/releases/2023/05/230518171954.htm //www.koonmotors.com/releases/2023/04/230406152642.htm 如何一个fixed-positio有广泛的研究n flap affects lift in the realm of fluid-structure interaction. So, researchers conducted a bio-inspired study with a novel twist -- variable stiffness over time much like a bird can tense, or stiffen, the musculature and tendons connected to covert feathers -- to learn more about how it affects lift. The results showed a 136 percent benefit. Thu, 06 Apr 2023 15:26:42 EDT //www.koonmotors.com/releases/2023/04/230406152642.htm //www.koonmotors.com/releases/2023/04/230404114255.htm A research team has demonstrated a unique method that reduces the aerodynamic resistance of ships by 7.5 per cent. This opens the way for large cargo ships borne across the oceans by wind alone, as wind-powered ships are more affected by aerodynamic drag than fossil-fueled ones. Tue, 04 Apr 2023 11:42:55 EDT //www.koonmotors.com/releases/2023/04/230404114255.htm //www.koonmotors.com/releases/2023/03/230330102433.htm Researchers developed a multiagent trajectory planning system that guarantees a group of drones working together in the same airspace will avoid collisions even if their communications to one another are delayed. Thu, 30 Mar 2023 10:24:33 EDT //www.koonmotors.com/releases/2023/03/230330102433.htm //www.koonmotors.com/releases/2023/03/230328145315.htm A team of scientists presents an original oscillating short-term memory model to study the dynamics of landing events at 10 major European airports. The model can estimate how landing volumes will influence those in consecutive hours -- a critical ability given airport capacity constraints and external events that cause landing delays. Altogether, the model demonstrates that statistical analyses of hourly plane landing volumes can yield valuable insights into airport operations. Tue, 28 Mar 2023 14:53:15 EDT //www.koonmotors.com/releases/2023/03/230328145315.htm //www.koonmotors.com/releases/2023/03/230321132524.htm A new nano-barrier coating could help protect ultra-lightweight carbon composite materials from extreme conditions in space, according to a new study. Tue, 21 Mar 2023 13:25:24 EDT //www.koonmotors.com/releases/2023/03/230321132524.htm //www.koonmotors.com/releases/2023/03/230315143816.htm Researchers have developed resilient artificial muscles that can enable insect-scale aerial robots to effectively recover flight performance after suffering severe damage. Wed, 15 Mar 2023 14:38:16 EDT //www.koonmotors.com/releases/2023/03/230315143816.htm //www.koonmotors.com/releases/2023/03/230315085949.htm Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation. Wed, 15 Mar 2023 08:59:49 EDT //www.koonmotors.com/releases/2023/03/230315085949.htm //www.koonmotors.com/releases/2023/02/230227132539.htm A cybersecurity technique that shuffles network addresses like a blackjack dealer shuffles playing cards could effectively befuddle hackers gambling for control of a military jet, commercial airliner or spacecraft, according to new research. Mon, 27 Feb 2023 13:25:39 EST //www.koonmotors.com/releases/2023/02/230227132539.htm //www.koonmotors.com/releases/2023/02/230208125149.htm 一个研究小组已经演示了使用诺l control method in an aircraft with no tail. The technology allows an aircraft to be as smooth and sleek as possible, making it safer to fly in dangerous areas where radar scans the sky for sharp edges. While conventional aircraft rely on protruding fins to enable steering, a tailless design is controlled by active air flow -- in which jets of air are blown onto different surfaces of the aircraft body, corresponding to which direction the aircraft is moving. This technology could be employed to make commercial airplanes more fuel-efficient by removing existing steering parts that create a lot of drag. Wed, 08 Feb 2023 12:51:49 EST //www.koonmotors.com/releases/2023/02/230208125149.htm //www.koonmotors.com/releases/2023/02/230201134059.htm Electric space propulsion systems use energized atoms to generate thrust. The high-speed beams of ions bump against the graphite surfaces of the thruster, eroding them with each hit, and are the systems' primary lifetime-limiting factor. Researchers used data from low-pressure chamber experiments and large-scale computations to develop a model to better understand the effects of ion erosion on carbon surfaces -- the first step in predicting its failure. Wed, 01 Feb 2023 13:40:59 EST //www.koonmotors.com/releases/2023/02/230201134059.htm //www.koonmotors.com/releases/2023/01/230125085833.htm Allocating passenger aircraft emissions using airfares rather than travel class would give a more accurate idea of individual contributions, finds a new study. Including airfares in calculations shows which passengers contribute the most revenue to the airline operating the aircraft, thereby allowing the plane to fly. Wed, 25 Jan 2023 08:58:33 EST //www.koonmotors.com/releases/2023/01/230125085833.htm //www.koonmotors.com/releases/2023/01/230124192623.htm It was believed that Hall thrusters, an efficient kind of electric propulsion widely used in orbit, need to be large to produce a lot of thrust. Now, a new study suggests that smaller Hall thrusters can generate much more thrust -- potentially making them candidates for interplanetary missions. Tue, 24 Jan 2023 19:26:23 EST //www.koonmotors.com/releases/2023/01/230124192623.htm //www.koonmotors.com/releases/2023/01/230118195819.htm Researchers have developed a flying device that can land on tree branches to take samples. This opens up a new dimension for scientists previously reserved for for biodiversity researchers. Wed, 18 Jan 2023 19:58:19 EST //www.koonmotors.com/releases/2023/01/230118195819.htm //www.koonmotors.com/releases/2023/01/230113112743.htm 鸟类的翅膀飞更有效地通过折叠during the upstroke, according to a recent study. The results could mean that wing-folding is the next step in increasing the propulsive and aerodynamic efficiency of flapping drones. Fri, 13 Jan 2023 11:27:43 EST //www.koonmotors.com/releases/2023/01/230113112743.htm //www.koonmotors.com/releases/2023/01/230109112727.htm Recent measurements have shown that Frankfurt International Airport is a major source of ultrafine particles and that these can disperse over long distances across the city. Researchers have now discovered that the ultrafine particles partly consist of synthetic jet oils. The research team has deduced that emissions from lubrication oils must be lowered in addition to those from kerosene in order to reduce the concentration of ultrafine particles and thus improve air quality. Mon, 09 Jan 2023 11:27:27 EST //www.koonmotors.com/releases/2023/01/230109112727.htm //www.koonmotors.com/releases/2023/01/230106144508.htm Researchers can now detect the formation of keyhole pores, one of the most challenging defects common in additive manufacturing, with incredible accuracy. Fri, 06 Jan 2023 14:45:08 EST //www.koonmotors.com/releases/2023/01/230106144508.htm //www.koonmotors.com/releases/2022/12/221220112959.htm The main gases released by volcanoes are water vapor, carbon dioxide, and sulfur dioxide. Analyzing these gases is one of the best ways of obtaining information on volcanic systems and the magmatic processes that are underway. The ratio of carbon dioxide levels to those of sulfur dioxide can even reveal the likelihood of an impending eruption. Drones are employed to carry the necessary analytical systems to the site of activity. Tue, 20 Dec 2022 11:29:59 EST //www.koonmotors.com/releases/2022/12/221220112959.htm //www.koonmotors.com/releases/2022/12/221219124328.htm Researchers have developed a method that allows a flapping-wing robot to land autonomously on a horizontal perch using a claw-like mechanism. The innovation could significantly expand the scope of robot-assisted tasks. Mon, 19 Dec 2022 12:43:28 EST //www.koonmotors.com/releases/2022/12/221219124328.htm //www.koonmotors.com/releases/2022/12/221212180509.htm Using a novel modeling method, a team of researchers gained new insights into how hummingbirds produce wing movement, which could lead to design improvements in flying robots. Mon, 12 Dec 2022 18:05:09 EST //www.koonmotors.com/releases/2022/12/221212180509.htm //www.koonmotors.com/releases/2022/12/221209153105.htm Scientists have demonstrated new laser systems for deep-space optical communication. Fri, 09 Dec 2022 15:31:05 EST //www.koonmotors.com/releases/2022/12/221209153105.htm //www.koonmotors.com/releases/2022/11/221129112706.htm An interdisciplinary team of researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that will pull carbon dioxide (CO2) out of the air. Tue, 29 Nov 2022 11:27:06 EST //www.koonmotors.com/releases/2022/11/221129112706.htm //www.koonmotors.com/releases/2022/11/221118144105.htm Fruit flies can quickly compensate for catastrophic wing injuries, researchers found, maintaining the same stability after losing up to 40% of a wing. This finding could inform the design of versatile robots, which face the similar challenge of having to quickly adapt to mishaps in the field. Fri, 18 Nov 2022 14:41:05 EST //www.koonmotors.com/releases/2022/11/221118144105.htm //www.koonmotors.com/releases/2022/11/221116133827.htm A new study has shown how the flight of birds can offer a meteorological insight into fine scale environmental conditions. Wed, 16 Nov 2022 13:38:27 EST //www.koonmotors.com/releases/2022/11/221116133827.htm //www.koonmotors.com/releases/2022/11/221114111024.htm New research shows a pathway toward full decarbonization of U.S. aviation fuel use by substituting conventional jet fuel with sustainably produced biofuels. The study found that planting the grass miscanthus on 23.2 million hectares of existing marginal agricultural lands -- land that often lays fallow or is poor in soil quality -- across the United States would provide enough biomass feedstock to meet the liquid fuel demands of the U.S. aviation sector fully from biofuels, an amount expected to reach 30 billion gallons/year by 2040. Mon, 14 Nov 2022 11:10:24 EST //www.koonmotors.com/releases/2022/11/221114111024.htm //www.koonmotors.com/releases/2022/11/221111103033.htm Space missions already use electric propulsion devices, where electromagnetic fields are utilized to generate the thrust of spacecraft. One such electrodeless device, which harnesses radio frequency (rf) to generate plasma and a magnetic nozzle (MN) to channel and accelerate plasma, has shown immense promise in pushing the boundaries of space travel. But scientists have so far failed to achieve efficient conversion of the rf power to thrust energy. Now, a researcher has achieved a stunning 30% conversion efficiency. Fri, 11 Nov 2022 10:30:33 EST //www.koonmotors.com/releases/2022/11/221111103033.htm //www.koonmotors.com/releases/2022/11/221109124259.htm Researchers have found a way to avoid the need to use radio transmitters in critical communications, using new technology featuring super-fast optical lasers. Wed, 09 Nov 2022 12:42:59 EST //www.koonmotors.com/releases/2022/11/221109124259.htm //www.koonmotors.com/releases/2022/11/221102085434.htm A research team develops aqueous rechargeable batteries based on zinc anodes. Polymeric artificial interphase to improve battery stability. Wed, 02 Nov 2022 08:54:34 EDT //www.koonmotors.com/releases/2022/11/221102085434.htm //www.koonmotors.com/releases/2022/10/221031133959.htm Engineering researchers have developed a new self-healing composite that allows structures to repair themselves in place, without having to be removed from service. This latest technology resolves two longstanding challenges for self-healing materials, and can significantly extend the lifespan of structural components such as wind-turbine blades and aircraft wings. Mon, 31 Oct 2022 13:39:59 EDT //www.koonmotors.com/releases/2022/10/221031133959.htm //www.koonmotors.com/releases/2022/10/221026134927.htm The oddly satisfying small domes that you press on your soda's to-go cup lid may one day save a winged drone from a nosedive. Wed, 26 Oct 2022 13:49:27 EDT //www.koonmotors.com/releases/2022/10/221026134927.htm //www.koonmotors.com/releases/2022/10/221020130254.htm For proper operation, drones usually use accelerometers to determine the direction of gravity. Scientists have now shown that drones can estimate the direction of gravity by combining visual detection of movement with a model of how they move. These results may explain how flying insects determine the direction of gravity and are a major step toward the creation of tiny autonomous drones. Thu, 20 Oct 2022 13:02:54 EDT //www.koonmotors.com/releases/2022/10/221020130254.htm //www.koonmotors.com/releases/2022/10/221012103158.htm Study shows that not only are loud vehicles flying overhead a cause of noise pollution-related stress, the effect of that stress remains on the body even after noise levels have decreased. 结婚,2022年10月12日10:31:58美国东部时间 //www.koonmotors.com/releases/2022/10/221012103158.htm //www.koonmotors.com/releases/2022/10/221006121156.htm Wear and tear in engines contributes to a lot of wasted fuel and can be dangerous for operators. Now, a collaborative group has created a way to computationally predict wear and tear in piston engines, allowing for enhanced safety measures in automobiles and industrial machinery. Thu, 06 Oct 2022 12:11:56 EDT //www.koonmotors.com/releases/2022/10/221006121156.htm //www.koonmotors.com/releases/2022/10/221006121128.htm An advanced design technique, used to develop components for aerospace and automotive industries, has been harnessed in the production of bespoke medical devices. Thu, 06 Oct 2022 12:11:28 EDT //www.koonmotors.com/releases/2022/10/221006121128.htm //www.koonmotors.com/releases/2022/10/221004105012.htm Engineers have made a significant breakthrough in de-icing technology. New research examines a smart, hybrid -- meaning passive and also active -- de-icing system that works by combining an interfacial coating with an ice-detecting microwave sensor. Tue, 04 Oct 2022 10:50:12 EDT //www.koonmotors.com/releases/2022/10/221004105012.htm //www.koonmotors.com/releases/2022/09/220929132537.htm Researchers have used a novel near-infrared light imaging technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. The new state-of-the-art technology could help accelerate turbine combustion research aimed at developing engines and aviation fuels that are more environmentally friendly. Thu, 29 Sep 2022 13:25:37 EDT //www.koonmotors.com/releases/2022/09/220929132537.htm //www.koonmotors.com/releases/2022/09/220928113013.htm A newly-developed 3D printing technique could be used to cost-effectively produce customized electronic 'machines' the size of insects which enable advanced applications in robotics, medical devices and others. The breakthrough could be a potential game-changer for smaller volume manufacturing of customized chip-based microelectromechanical systems (MEMS). Wed, 28 Sep 2022 11:30:13 EDT //www.koonmotors.com/releases/2022/09/220928113013.htm //www.koonmotors.com/releases/2022/09/220927125101.htm An underutilized natural resource could be just what the airline industry needs to curb carbon emissions. Researchers report success in using lignin as a path toward a drop-in 100% sustainable aviation fuel. Lignin makes up the rigid parts of the cell walls of plants. Other parts of plants are used for biofuels, but lignin has been largely overlooked because of the difficulties in breaking it down chemically and converting it into useful products. Tue, 27 Sep 2022 12:51:01 EDT //www.koonmotors.com/releases/2022/09/220927125101.htm //www.koonmotors.com/releases/2022/09/220922103202.htm Researchers have taken bees as a model to develop a swarm of cooperative, 3D-printing drones. Under human control, these flying robots work as a team to print 3D materials for building or repairing structures while flying. Thu, 22 Sep 2022 10:32:02 EDT //www.koonmotors.com/releases/2022/09/220922103202.htm //www.koonmotors.com/releases/2022/09/220921113106.htm Researchers have created a fleet of bee-inspired flying 3D printers that build and repair structures while flying. Wed, 21 Sep 2022 11:31:06 EDT //www.koonmotors.com/releases/2022/09/220921113106.htm //www.koonmotors.com/releases/2022/09/220913140907.htm Researchers have developed an analytical instrument that uses an ultrafast laser for precise temperature and concentration measurements of hydrogen. Researchers describe a new coherent Raman spectroscopy instrument, made possible due to a setup that converts broadband light from a laser with short (femtosecond) pulses into extremely short supercontinuum pulses, which contain a wide range of wavelengths. Their new approach could help advance the study of greener hydrogen-based fuels for use in spacecraft and airplanes. Tue, 13 Sep 2022 14:09:07 EDT //www.koonmotors.com/releases/2022/09/220913140907.htm //www.koonmotors.com/releases/2022/09/220912132350.htm To combat the hazards of ice, a mechanical engineer has developed a sprayable ice-shedding material that is 100 times stronger than any others. It's been tested by Boeing under erosive rain conditions at 385 miles per hour and outperformed current state-of-the-art aerospace coating technologies. Mon, 12 Sep 2022 13:23:50 EDT //www.koonmotors.com/releases/2022/09/220912132350.htm //www.koonmotors.com/releases/2022/09/220906114220.htm Typically, the faster the two surfaces slide past each other, the greater the wear. But at extremely high speeds, comparable to the muzzle velocity of a firearm, this can be reversed: Above a certain speed, the wear decreases again. This surprising and seemingly contradictory result has now been explained. Tue, 06 Sep 2022 11:42:20 EDT //www.koonmotors.com/releases/2022/09/220906114220.htm //www.koonmotors.com/releases/2022/09/220906102027.htm No movie experience is complete without popcorn, whether plain, buttered, or coated with sweet or savory toppings. Microwaves and counter-top air poppers are common appliances for making this tasty snack at home, but now, a study reports that infrared cooking is yet another way people can make the treat. Using a pilot infrared popping system, the researchers were able to produce a version of the snack that taste-testers liked. Tue, 06 Sep 2022 10:20:27 EDT //www.koonmotors.com/releases/2022/09/220906102027.htm //www.koonmotors.com/releases/2022/09/220905160941.htm People have been fascinated by bird flight for centuries, but exactly how birds can be so agile in the air remains mysterious. A new study uses modeling and aerodynamics to describe how gulls can change the shape of their wings to control their response to gusts or other disturbances. The lessons could one day apply to uncrewed aerial vehicles or other flying machines. Mon, 05 Sep 2022 16:09:41 EDT //www.koonmotors.com/releases/2022/09/220905160941.htm //www.koonmotors.com/releases/2022/08/220823115615.htm Abundant internet claims about the acoustic power of the Saturn V suggest that it melted concrete and lit grass on fire over a mile away, but such ideas are undeniably false. Researchers used a physics-based model to estimate the rocket's acoustic levels and obtained a value of 203 decibels, which matched the limited data from the 1960s. So, while the Saturn V was extremely loud, that kind of power is nowhere near enough to melt concrete or start grass fires. Tue, 23 Aug 2022 11:56:15 EDT //www.koonmotors.com/releases/2022/08/220823115615.htm //www.koonmotors.com/releases/2022/08/220809101737.htm Researchers have developed an AI pilot that enables autonomous aircraft to navigate a crowded airspace. The artificial intelligence can safely avoid collisions, predict the intent of other aircraft, track aircraft and coordinate with their actions, and communicate over the radio with pilots and air traffic controllers. The researchers aim to develop the AI so the behaviors of their system will be indistinguishable from those of a human pilot. Tue, 09 Aug 2022 10:17:37 EDT //www.koonmotors.com/releases/2022/08/220809101737.htm