n18
Menu
NEWS|Current Affairs 
   |

Equipment inside two nearly indestructible boxes aboard the missing Malaysia Airlines plane recorded critical information that would help investigators reconstruct what went wrong. The flight data recorder and cockpit voice recorder have beacons that are sending out "pings" which searchers could track back to the main wreckage.But the batteries run out in about two weeks. Satellite images show debris floating in the southern Indian Ocean, but search crews still have not confirmed it is from the plane. If they can do that, searchers will calculate where the bulk of the plane may have come to rest on the sea floor and then go to that area and start listening for the pings.ORANGE, NOT BLACKThey're commonly called black boxes, but the flight data recorder and the cockpit voice recorder are actually orange so they can be more easily seen. The data recorder logs performance and other metrics, including speed, altitude and direction. In all, it can keep 1,000 different measurements, giving investigators a rich cache of information. Those measurements cover the 25 hours prior to a crash. The voice recorder captures two hours of sound from several microphones in the cockpit. It runs on a continuous loop, so audio from the critical moments during which the plane diverted west from its Malaysia-China route about seven hours before it is believed to have crashed have been erased.RACING TIMEEach recorder has its own beacon, bolted to the box's outside, which once activated by water emits a chirp every second. The chirp can't be heard by the naked ear it requires special equipment to detect. A beacon's battery is designed to last 30 days. Once that month is up, the pings begin to fade in the same way that a flashlight with failing batteries begins to dim. According to Chuck Schofield of Dukane Seacom Inc., a company which has sold pingers to Malaysia Airlines, the batteries might "reliably" give five extra days before dying. The specific length depends on factors including maintenance and temperature (batteries like cold better than hot). Authorities believe the plane crashed March 8. So the pingers would begin to fade around April 7, and could go silent around April 12.The US Navy on Wednesday deployed a Towed Pinger Locator, a device that's pulled behind a vessel at slow speeds, and an unmanned underwater vehicle to Perth in western Australia. The equipment will be fitted to an Australian vessel, which according to Malaysia is expected to reach the search area April 5.WHY JUST A MONTH?After the crash of an Air France flight in the Atlantic Ocean in 2009, searchers did not locate the black boxes for nearly two years. Aviation regulators began a push to extend battery life, and the European Aviation Safety Agency will require a 90-day pinger starting next year. Several years later, a second regulatory change kicks in a much larger pinger must be added to the structure of the airframe. That would give searchers a second signal to track, one that can be detected up to eight miles (13 kilometers) away (the black box pingers have a range of about 2.5 miles (4 kilometers)).STRONG BACK, STRONG MINDThe data and voice recorders are tough. Honeywell Aerospace made the boxes in the missing Malaysia Airlines plane. They are engineered to survive a super-hot fire for an hour, stay intact during a violent impact, and withstand the tremendous pressure of being under 20,000 feet (more than 6,000 meters) of water (ocean depth in the search area averaged 10,000 to 15,000 feet (3,000 to 4,500 meters)), Honeywell spokesman Steve Brecken said. The flight data recorder should retain its information for at least two years.Associated press

Downloads | Featured Wallpaper


Baaghi

France attack: Priest killed, two assailants neutralised at Normandy church

from firstpost

France attack: Priest killed, two assailants neutralised at Normandy church

France: A priest was killed on Tuesday when men armed with knives seized hostages at a church near the northern French city of Rouen, a police source said.Police said they killed two hostage-takers in...


Turkey's President Recep Tayyip Erdogan slams EU, justifies death penalty

from firstpost

Turkey's President Recep Tayyip Erdogan slams EU, justifies death penalty

Berlin: Turkish President Recep Tayyip Erdogan slammed European leaders as "insincere" and said reintroducing the death penalty was the will of the people in an interview with German...

Hostage situation in France's Normandy: One hostage killed, 2 assailants neutralised in church

from firstpost

Hostage situation in France's Normandy: One hostage killed, 2 assailants neutralised in church

Two men armed with knives had taken several people hostage in a church in a town in France's northern Normandy region on Tuesday, a police source said. According to latest reports, two assailants have...

No standardised definition of OROP for retired defence personnel: Arun Jaitley

from firstpost

No standardised definition of OROP for retired defence personnel: Arun Jaitley

New Delhi: Finance Minister Arun Jaitley said on Tuesday that there was no "standardised definition" for the One Rank One Pension (OROP) scheme for retired defence personnel, adding ...

Knife attacker had written letter to Japanese Parliament outlining morbid plan

from firstpost

Knife attacker had written letter to Japanese Parliament outlining morbid plan

Sagamihara (Japan): Hatred iswhat fueled a young Japanese man to goon a stabbing rampage on Tuesday, killing 19 people at a facility for the mentally disabled whichhad fired him. Months earlier, he ha...

Zakir Naik's IRFs alleged Islamic State connection makes a strong case for action against preacher

from firstpost

Zakir Naik's IRFs alleged Islamic State connection makes a strong case for action against preacher

Radical religious preachers who do sermons never begin their discourse saying thus. Here Im going to start my indoctrination session to prove that my religion is better than yours. In the next few hou...

Pakistan demands independent inquiry into the 'extrajudicial' killing of Burhan Wani at UN

from firstpost

Pakistan demands independent inquiry into the 'extrajudicial' killing of Burhan Wani at UN

New York:Further needling India, Pakistan has demanded an independent inquiry into the "extrajudicial" killing of Hizbul Mujahideen commander Burhan Wani and claimed that the denial ...