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17 Oct 2024 - 03:24 am

Automatic takeoffs are coming for passenger jets and they’re going to redraw the map of the sky
kra8.cc

In late 1965, at what’s now London Heathrow airport, a commercial flight coming from Paris made history by being the first to land automatically.

The plane – A Trident 1C operated by BEA, which would later become British Airways – was equipped with a newly developed extension of the autopilot (a system to help guide the plane’s path without manual control) known as “autoland.”

Today, automatic landing systems are installed on most commercial aircraft and improve the safety of landings in difficult weather or poor visibility.

Now, nearly 60 years later, the world’s third largest aircraft manufacturer, Brazil’s Embraer, is introducing a similar technology, but for takeoffs.

Called “E2 Enhanced Take Off System,” after the family of aircraft it’s designed for, the technology would not only improve safety by reducing pilot workload, but it would also improve range and takeoff weight, allowing the planes that use it to travel farther, according to Embraer.

“The system is better than the pilots,” says Patrice London, principal performance engineer at Embraer, who has worked on the project for over a decade. ”That’s because it performs in the same way all the time. If you do 1,000 takeoffs, you will get 1,000 of exactly the same takeoff.”

Embraer, London adds, has already started flight testing, with the aim to get it approved by aviation authorities in 2025, before introducing it from select airports.

Steveunesk

17 Oct 2024 - 02:40 am

A severe geomagnetic storm could cause colorful auroras over Northern California and Alabama
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Colorful auroras could be visible in areas of the United States such as Alabama and Northern California — much farther south than they typically appear — on Thursday evening due to a powerful solar flare and coronal mass ejection released from the sun, according to the National Weather Service’s Space Weather Prediction Center.

The severe solar storm, classified as a level 4 on a scale from 1 to 5, also could disrupt communications, the power grid and satellite operations, according to officials at the center.

The storm is expected to reach Earth between early morning and 12 p.m. ET Thursday, with the potential to last through Friday.

The intensity and full characteristics of the storm, moving toward Earth at more than 2.5 million miles per hour (about 4 million kilometers per hour), won’t be known until it reaches the Deep Space Climate Observatory and the Advanced Composition Explorer satellites orbiting 1 million miles from Earth.

The satellites will measure the speed and magnetic intensity of the storm, which is expected to arrive at Earth 15 to 30 minutes after reaching the space observatories, said Shawn Dahl, service coordinator for the Space Weather Prediction Center, at a news briefing Wednesday.

A series of the most intense type of solar flares, known as X-class flares, have released from the sun this week. The flares also coincided with coronal mass ejections on Tuesday.

Coronal mass ejections are large clouds of ionized gas called plasma and magnetic fields that erupt from the sun’s outer atmosphere. When these outbursts are directed at Earth, they can cause geomagnetic storms, or major disturbances of Earth’s magnetic field.

“Geomagnetic storms can impact infrastructure in near-Earth orbit and on Earth’s surface,” according to the Space Weather Prediction Center.

As a result, the center has notified the Federal Emergency Management Agency, the North American power grid and satellite operators to prepare for disruptions, especially given the amount of preparations and expected relief efforts for Hurricane Milton, Dahl said.

Historically, G4 storms are common during a solar cycle, but G5, or extreme geomagnetic storms such the one that occurred on May 10, are incredibly rare, Dahl said. This new storm has a 25% chance of becoming a G5, he said.

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16 Oct 2024 - 09:35 pm

Lebanon says efforts intensify to reach ceasefire in the country
From CNN’s Mostafa Salem kra5.at
Efforts to achieve a ceasefire in Lebanon have intensified over the past few hours, according to Lebanese Prime Minister Najib Mikati’s office, adding that contact between the United States and France is ongoing to revive a ceasefire proposal between Hezbollah and Israel.

US President Biden and his French counterpart Emmanuel Macron proposed a 21-day ceasefire during the UN General Assembly last month. Israel assassinated Hezbollah’s leader Hassan Nasrallah three days after the proposal and launched intensive attacks on the group, derailing the talks.

Netanyahu publicly rejected a ceasefire ahead of the assassination. Prospects for a truce diminished further after Iran, who backs Hezbollah, fired a barrage of missiles on Israel last week.
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“There are contacts taking place between the United States and France…with the aim of reviving the declaration of a ceasefire for a specific period in order to resume the search for political solutions,” Mikati’s office said on X, citing the prime minister.

Mikati said his government is ready to implement the 2006 Security Council Resolution 1701, which called for a permanent ceasefire and end to hostilities between Hezbollah and Israel. The resolution also stipulates that Hezbollah forces must withdraw north of the Litani River in Lebanon, and that only the Lebanese military should hold positions in the border area.

Hezbollah’s top official Naim Qassem said Tuesday that his group backs ceasefire efforts spearheaded by Shia allies inside Lebanon. This was the first time the group publicly endorsed a truce and didn’t condition it on stopping the war in Gaza.


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