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Lockheed Martin and Boeing debut Defiant X advanced assault helicopter

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Lockheed Martin and Boeing have taken the wraps off the Defiant X advanced military helicopter being developed for the US Army’s Future Long-Range Assault Aircraft (FLRAA) competition. Billed as the fastest, most maneuverable, and most survivable assault helicopter in history, it is based on the team’s SB>1 Defiant demonstrator prototype.

The goal of the FLRAA competition is to produce a medium-class multi-role assault helicopter with twice the speed and range of current designs. The Defiant X uses coaxial main rotors and a rear-mounted pusher prop. These eliminate the risk of retreating blade stall and uneven lift forces at high speeds found in single rotor designs. At low speeds, the coaxial rotors allow the craft to retain good handling characteristics.

Designed to replace the Black Hawk helicopter, the Defiant X looks very similar to its SB>1 Defiant predecessor, with the same basic layout, though the nose is sharper, the airframe more aerodynamic, and the engine nacelle has been refined to reduce its thermal signature. The purpose is to create a stealthy, fast, well-armed helicopter that can maneuver at high speeds and enter hostile territory at low altitude to deliver or extract troops and equipment at a designated area.

The Defiant X retains the Black Hawk's close formation flying ability
The Defiant X retains the Black Hawk’s close formation flying ability

Boeing

The partners are keeping technical data to a minimum, so it isn’t known yet whether the T55 engine has been replaced with a more advanced turbine. If that is the case, the Defiant X could be able to fly 100-knots (115 mph; 185 km/h) faster than conventional rotorcraft with 60 percent more range and 50 percent improved performance in hot-hover maneuvers.

The Defiant X is designed to provide improved capabilities with the same footprint as the Black Hawk, the same close-formation flying, and with minimal alteration of current tactics, techniques, procedures, training, or infrastructure.

The helicopter is currently being tested in a digital combat environment while contracts arising from the FLRAA competition are expected to be awarded in 2022. If selected by the Army, the Defiant X will enter service somewhere around 2035.

The video below introduces the Defiant X.

Defiant X

Sources: Lockheed Martin, Boeing

Source: https://newatlas.com/military/lockheed-martin-boeing-defiant-x-advanced-assault-helicopter/

NEWATLAS

Hidden Egyptian handbook reveals secrets of mummification

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A recently discovered text written around 1450 BCE contains previously unknown details about Egyptian mummification process

A 3,500-year-old Egyptian medical text is shedding new light on the ancient practice of mummification. Recently discovered inside a much larger work, the papyrus document being studied by University of Copenhagen Egyptologist Sofie Schiødt is the oldest known mummification manual.

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Category: Science

Tags: University of Copenhagen, Mummies, Archaeology

Source: https://newatlas.com/science/egypt-mummification-manual-louvre-carlsberg-copenhagen/

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NEWATLAS

Lasers and plasma shockwaves used to measure ripeness of fruit

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Researchers in Japan have developed a contactless way to measure the ripeness of soft fruit like mangoes

Judging how ripe a piece of fruit is can be a frustrating process for everyone from farmers to shoppers. Now, researchers at Shibaura Institute of Technology (SIT) in Japan have developed a new high-tech way to check, without touching or damaging soft fruit like mangoes. All it takes is a laser and some plasma shockwaves.

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Category: Science

Tags: Food, Fruit, Laser, Food technology

Source: https://newatlas.com/science/fruit-ripe-lasers-plasma-shockwaves/

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NEWATLAS

Broadcasting tech swaps stadium ads for regional advertising

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Examples of the system showing two different ads (A,B) along with the magenta screen (C) which neither stadium audiences nor TV viewers see

When viewing sports coverage from other countries, it’s common to see sideline advertising boards that are promoting products you’ve never even heard of. This new TV system is capable of digitally replacing the content of those boards, so they’re advertising region-specific products.

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Category: Good Thinking, Lifestyle

Tags: Fraunhofer, Sports, Advertising, Broadcast, Television

Source: https://newatlas.com/good-thinking/fraunhofer-vibotec-sports-advertising/

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NEWATLAS

Scientists calculate life expectancy of Earth’s atmospheric oxygen

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An artist's interpretation of the atmosphere of Archean Earth, prior to 2.4 billion years ago. A new study suggests it may return to this oxygen-poor, methane-rich atmosphere in about 1 billion years' time

The Earth has an expiry date – in about five billion years, the Sun will expand and swallow up our home world. But it turns out life on Earth could have a much earlier end point. A new study has found that in about a billion years’ time, the atmosphere will lose most of its oxygen rapidly, which may have important implications in the search for life on other planets.

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Category: Environment, Science

Tags: Oxygen, Atmosphere, Earth, Geology, Exoplanet, Extraterrestrial

Source: https://newatlas.com/environment/earth-atmosphere-oxygen-life-expectancy/

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