•   
  •   

Tech & Science New Tech to Save Aircraft from Lightning Strikes

17:40  12 march  2018
17:40  12 march  2018 Source:   ibtimes.com

Strike on Syria's Ghouta kills 15 children sheltering in school: monitor

  Strike on Syria's Ghouta kills 15 children sheltering in school: monitor An air strike on a school in Syria's Eastern Ghouta late Monday killed 15 children and two women who were using its basement as a bomb shelter, a monitor said. The Syrian Observatory for Human Rights said the bombing raid hit Arbin, a key town in the dwindling rebel-held enclave of Ghouta that has been under attack by government troops for over a month."Three missiles from a single air strike hit the school, where the underground level was being used as a shelter," said Rami Abdel Rahman, who heads the Britain-based monitor."Rescue workers are still searching for survivors," he told AFP.

© Provided by IBT US MIT's new tech to protect aircraft from lightning strikes . Researchers at the Massachusetts Institute of Technology (MIT) have proposed a novel system that could save passenger as well as military planes from lightning strikes .

© Provided by IBT US MIT's new tech to protect aircraft from lightning strikes . This is a representational image. MIT's new tech to protect aircraft from lightning strikes . Researchers at the Massachusetts Institute of Technology (MIT) have proposed a novel system that could save

MIT's new tech to protect aircraft from lightning strikes. This is a representational image. <br />© Provided by IBT US MIT's new tech to protect aircraft from lightning strikes. This is a representational image.
Researchers at the Massachusetts Institute of Technology (MIT) have proposed a novel system that could save passenger as well as military planes from lightning strikes.

A strong lightning jolt can immediately damage the outer structure as well as electrical systems onboard an aircraft. Pilots usually tend to avoid this problem by opting for a safer route, but researchers at MIT think charging a plane could be the way to deal with it.

It is estimated that every commercial aircraft is hit by lightning at least once a year. Of these, nearly 10% of the strikes occur naturally, while the rest are triggered from the aircraft itself — a situation where its exterior acts as an electrically conductive lightning rod which leverages stormy regions to generate strikes.

Seven US personnel killed in Iraq helicopter crash: official

  Seven US personnel killed in Iraq helicopter crash: official Seven US military personnel were killed when the helicopter carrying them crashed during a routine transport mission in western Iraq, a defense official said Friday. "It was a routine troop transport operation going from Iraq to Syria, nothing out of the ordinary," the official said."There were seven people aboard -- they are all believed to be dead."Another official said that four of those killed in Thursday's crash belonged to the Air Force.A Pentagon statement said the crash involved a Sikorsky HH-60 Pave Hawk and did not appear to be a result of enemy activity.

Terror in the Skies Сезон 1 • Серия 9. When Lightning Strikes Your Airplane Aerial America Сезон 1 • Серия 115 Roswell's Bizarre Aircraft Boneyard - Продолжительность: 2:18 Smithsonian Channel 3 617 072 просмотра.

A new study published by several researchers from the Massachusetts Institute of Technology ’s (MIT) department of aeronautics presents a theory that providing aircraft with a mechanism for becoming more electrically charged internally when the threat of a lightning strike is present would actually

An imbalance in the external electrical state of the aircraft results in such strikes. More specifically, while passing through thunderstorms or an electrically charged environment, the aircraft starts polarizing, with one end gaining positive charge and other becoming more negatively charged. This sets off a highly conductive flow of plasma, ultimately leading to the lightning strike.

However, if this imbalance is restored, aircraft-triggered lightning strikes could be prevented, the researchers said while suggesting an automated control system that could electrically charge the plane to a negative level and negate the effect of the more highly charged positive end.

As part of a study sponsored by Boeing, the group used a working model to show how the system, outfitted on an aircraft, would use sensors and actuators to detect plasma flow and generate current to charge the plane to the required level.

Qantas CEO Alan Joyce blames airport operations for high airfares during Dreamliner launch

  Qantas CEO Alan Joyce blames airport operations for high airfares during Dreamliner launch The newest aircraft to join the Qantas fleet has been officially launched in Alice Springs, the only time it will ever visit the Central Australian town notorious for expensive airfares. The 787-9 Dreamliner touched down at 6:15am after flying for 15 hours from the Boeing factory in Seattle.But it was the plane's artwork, rather than the engineering feat, that tied it to the town. The plane was named after and featured the artwork from one of Australia's most renowned Indigenous painters, Emily Kame Kngwarreye, who was from the nearby Utopia community.

I've read this question and this one, but they don't really answer my question. How or why are aircraft protected ( from lightning ) by a conducting skin, such as aluminum?

I received this in an email and I thought I would share it. Here's the description that came along with the email: "Watch this a couple times. Watch closely

“Numerically, one can see that if you could implement this charge strategy, you would have a significant reduction in the incidents of lightning strikes,” Manuel Martinez-Sanchez, one of the members of the team, said in a release.

4 iOS News App Tips You Need To Know

  4 iOS News App Tips You Need To Know Apple’s News app is AWESOME–if you know how to use it!Yet, because it’s one of iOS’s many “stock” apps, most people delete it without ever trying it, or simply relegate it to a wayward folder on the home screen. But as someone who loves the News app, I’m going to say those people are making a mistake.

Figure 2: Airplane lightning strikes by cloud orientation. Most airplane lightning strikes occur when an airplane is flying in clouds. Source: The data in figures 3 and 4 was adapted from data in Lightning Protection of Aircraft by Franklin A. Fisher, J. Anderson Plummer, and Rodney A. Perala

In fact, aircraft often trigger lightning when flying through a heavily charged region of a cloud. In these instances, the lightning flash originates at the airplane and extends away in opposite directions. Although passengers and crew may see a flash and hear a loud noise if lightning strikes their plane

The passengers sitting inside will also stay safe as the power levels required for the charge would be lower than what is required for a simple bulb. Plus, aircraft cabins are very well insulated from the external electrical activity, Martinez-Sanchez added.

“We’re trying to make the aircraft as invisible to lightning as possible,” Jaime Peraire, head of MIT’s Department of Aeronautics and Astronautics, said in a statement.

That said, bringing the system to life is still a question, at least as of now. The researchers are currently testing it on a metallic sphere in a wind tunnel and plan to make further improvements by expanding to more realistic situations like by flying drones into thunderstorms. This would include bringing down the response time of the system from a fraction of a second to even less.

The work was published in the American Institute of Aeronautics and Astronautics Journal.

The Marine Corps wants a 'mega drone' that can take off vertically and is armed to the teeth .
The US Marine Corps wants a massive drone that can take off vertically from ships and carry a massive amount of ordnance.The requirements, first reported by Military.com, include the ability to take off vertically from ships, carry a combined internal and external payload of 9,500 pounds, and fly at least 700 nautical miles (805 land miles) fully loaded. The Marines also want a cruising speed of 230 to 340 mph.

—   Share news in the SOC. Networks

Topical videos:

This is interesting!