Malaysian jet 'avoided radars in three countries'

01:49, Mar 17 2014
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Journalists attempt to interview a woman who is the relative of a passenger on Malaysia Airlines flight MH370, as she crouches on the floor crying, at the Beijing Capital International Airport.
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A relative of a passenger onboard Malaysia Airlines flight MH370 cries, surrounded by journalists, at the Beijing Capital International Airport on March 8, 2014.
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The Malaysia Airlines flight carrying 227 passengers and 12 crew lost contact with air traffic controllers early on Saturday en route from Kuala Lumpur to Beijing, the airline said in a statement.
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An aerial view of an oil spill is seen from a Vietnamese Air Force aircraft in the search area for a missing Malaysia Airlines plane, 250 km from Vietnam and 190 km from Malaysia, in this handout photo from Thanh Nien Newpaper taken on March 8.
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A spokesman (centre) of Malaysia Airlines is surrounded by journalists as he gives a briefing about Malaysia Airlines flight MH370, at a hotel in Beijing March 8, 2014.
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A relative (front) of a passenger of Malaysia Airlines flight MH370 cries as she walks past journalists at a hotel in Beijing March 9, 2014. The Malaysia Airlines Boeing 777-200ER aircraft carrying 227 passengers and 12 crew was presumed to have crashed off the Vietnamese coast on Saturday.
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Malaysia Airlines Commercial Director Hugh Dunleavy (centre) speaks to journalists about information of Malaysia Airlines flight MH370.
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Vietnamese Air Force officers sit in the cockpit of a search and rescue aircraft as they fly over the search area for a missing Malaysia Airlines plane.
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Volunteer rescue workers and religious organisations pray during multi-religion mass prayers for the passengers of Malaysian Airlines flight MH370, at the Kuala Lumpur International Airport in Sepang.
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A view of oil slicks (pale line near the bottom right) spotted in an area of the South China Sea about 100 nautical miles (185 km) from Tok Bali Beach in Malaysia's Kelantan state.
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Admiral Datuk Mohd Amdan Kurish, Director General of the Malaysian Maritime Enforcement Agency, looks at a radar screen while searching for a missing Malaysia Airlines plane in the South China Sea.
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A relative (left) of a passenger of Malaysia Airlines flight MH370 is escorted by a caregiver from Malaysia Airlines as they walk in a corridor at a hotel in Beijing.
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Indian sand artist Sudarshan Patnaik applies the final touches to a sand art sculpture he created wishing for the well being of the passengers of Malaysian Airlines flight MH370, on a beach in Puri, in the eastern Indian state of Odisha.
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Life vests and lifesavers are seen onboard a Vietnam Air Force search and rescue aircraft on a mission to find the missing Malaysia Airlines flight MH370, off Tho Chu island.
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Journalists place their recorders as they get ready for the first briefing of the day at a news conference at the Kuala Lumpur International Airport in Sepang on March 10.
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Relatives of a passenger onboard the missing Malaysia Airlines flight MH370 cry inside a hotel they are staying, in Putrajaya. China has urged Malaysia to step up the search for the jetliner that went missing with 239 people on board, about two-thirds of them Chinese, and said it has sent security agents to help with an investigation into the misuse of passports.
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An officer looks out of a helicopter during a mission to find the Malaysia Airlines flight MH370 that disappeared from radar screens in the early hours of Saturday, near Tho Chu Island.
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A map of a flight plan is seen on a computer screen during a meeting before a mission to find the Malaysia Airlines flight MH370 that disappeared from radar screens in the early hours of Saturday, at Phu Quoc Airport.
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A woman stands in front of a giant screen showing the number hours since Malaysia Airlines flight MH370 went missing, in Beijing on March 10.
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A family member of a passenger from the missing Malaysia Airlines flight MH370 waits for news at Lido Hotel on March 10, in Beijing, China. Investigative teams continue to search for the missing Malaysia Airlines flight MH370 and the 293 passengers that were travelling from Kuala Lumpur to Beijing.
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Dato' Azharuddin Abdul Rahman, director general of the Malaysian Department of Civil Aviation briefs the media over latest updates on missing Malaysia Airline MH370 on March 10, in Kuala Lumpur.
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Clouds hover outside the window of a Vietnam Air Force search and rescue aircraft An-26 on a mission to find the missing Malaysia Airlines flight MH370, off Vietnam's Tho Chu island.
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People believed to be relatives of passengers of the missing Malaysia Airlines flight MH370 are escorted to the VIP section of the Beijing Capital International Airport prior to flying to Kuala Lumpur.
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A Chinese relative of a passenger of Malaysia Airlines MH370 is comforted by a staff member of the airport as she shields her face from journalists at Kuala Lumpur International Airport.
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A combination photo shows two men whom police said were travelling on stolen passports onboard the missing Malaysia Airlines MH370 plane.
Military personnel look out of a Singapore Air Force plane during the search
Military personnel look out of a Singapore Air Force plane during the search.
General Khalid Abu Bakar
Malaysia's police chief, Inspector General Khalid Abu Bakar, addresses a news conference.
Zhuji, China
Students from an international school in east China city Zhuji pray for the passengers onboard Malaysia Airlines flight MH370.
Flight MH370 relatives
LOOKING FOR ANSWERS: Family members of missing passengers leave a meeting in a Beijing Hotel.
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MESSAGE OF HOPE: A Vietnamese tourist writes a message of hope for missing passengers and crew.
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MESSAGES FOR THE MISSING: Tying a message of hope on a message board for passengers and crew.
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A relative of a passenger aboard Malaysia Airlines flight MH370 answers media questions at Lido Hotel.
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A charity worker comforts an emotional relative of a passenger.
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Indian sand artist Sudarshan Pattnaik works on a sand sculpture of missing Malaysia Airlines flight MH370, at golden beach at Puri in the eastern Indian state of Odisha.
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Satellite images reveal a possible crash site for the missing Malaysia Airlines plane, where three large objects were seen in the water.
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An object sits in the water in satellite imagery released by China.
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The zone where the mystery objects were found.
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What appears to be fuel sits on the water in the area where three large objects were found.
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A crew member from the Royal Malaysian Air Force looks through the window of a Malaysian Air Force CN235 aircraft during a Search and Rescue operation to find the missing Malaysia Airlines flight MH370.
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The Arleigh Burke-class guided-missile destroyers USS Kidd and USS Pinckney are seen en transit in the Pacific Ocean in this US Navy picture taken May 18, 2011. Kidd and Pinkney have been searching for the missing Malaysian airliner and are being re-deployed to the Strait of Malacca off Malaysia's west coast as new search areas are opened in the Indian Ocean.
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Students watch as a group of artists put the finishing touches to a three dimensional artwork at a school in Makati city, metro Manila. According to the artists, the artwork is their way of expressing sympathy towards the relatives of passengers onboard the missing Boeing 777-200ER.
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Malaysia's acting Transport Minister Hishammuddin Hussein shows two maps with corridors of the last known possible location of the missing plane.
Selamat Omar shows a picture of his son, flight engineer Mohd Khairul Amri Selamat
Selamat Omar shows a picture of his son, flight engineer Mohd Khairul Amri Selamat who was onboard the missing Malaysia Airlines Flight MH370.
Chinese relatives of the missing passengers
Chinese relatives of the missing passengers who were travelling onboard Malaysia Airlines flight MH370 watch a television displaying a Malaysian press conference at Lido Hotel in Beijing.
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A family member of a passenger onboard the missing Malaysia Airlines flight MH370 cries as he watches a message board dedicated to passengers.
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Satellite photos from March 20 show the objects "possibly associated" with the search for the missing plane. The images were released hours after Australia announced it had "credible" leads in the search for flight MH370.
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Satellite photos from March 20 show the objects "possibly associated" with the search for the missing plane. The images were released hours after Australia announced it had "credible" leads in the search for flight MH370.
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A still image taken from video shows an image of an object spotted in the southern Indian Ocean by the Gaofen-1 high-resolution optical Earth observation satellite of CNSA.
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Pilot Dave Smith (R) gives a pre-flight briefing aboard a Royal New Zealand Air Force P-3K2 Orion aircraft before taking off to search for missing Malaysian Airlines flight MH370, at RAAF base Pearce near Perth, March 22, 2014.
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Family members of passengers onboard Malaysia Airlines Flight MH370 raise their fists as they shout "return our families" to protest against the lack of new information after a routine briefing given by Malaysia's government and military representatives at Lido Hotel in Beijing March 22, 2014.
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Malaysia's acting Transport Minister Hishammuddin Hussein holds up a note that he has just received on a new lead in the search for the missing Malaysia Airlines Flight MH370, during a news conference at Kuala Lumpur International Airport March 22, 2014.
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Malaysia's Prime Minister Najib Razak (bottom C) takes part in a special prayer for passengers onboard the missing Malaysia Airlines Flight MH370 at the Tuanku Mizan Zainal Abidin mosque in Putrajaya March 21, 2014.
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A woman writes on a banner of well wishes for the passengers of the missing Malaysia Airlines Flight MH370 at Kuala Lumpur International Airport March 14, 2014.
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A family member of a passenger onboard Malaysia Airlines Flight MH370 covers her face as she cries after a routine briefing given by Malaysia Airlines at Lido Hotel in Beijing, March 22, 2014.
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A girl reads some of the messages of hope and support for the passengers of the missing Malaysia Airlines MH370 at a mall outside Kuala Lumpur March 22, 2014.
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A crew member aboard a Royal Australian Air Force (RAAF) AP-3C Orion uses binoculars as it flies over the southern Indian Ocean during the search for missing Malaysian Airlines flight MH370 March 22, 2014.
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A woman writes another message of hope and support for the passengers of the missing Malaysia Airlines MH370 at a mall outside Kuala Lumpur March 22, 2014.
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Map of the southern Indian Ocean locating site where a satellite may have found debris related to Malaysia Airlines Flight 370; includes satellite images of possible debris. MCT
Search for MH370
Solid matter is pictured floating in the southern Indian Ocean seen from a Royal New Zealand Air Force P-3K2 Orion aircraft searching for missing Malaysian Airlines flight MH370.
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INDIAN OCEAN - This handout Satellite image made available by the AMSA (Australian Maritime Safety Authority) shows a map of the planned search area for missing Malaysian Airlines Flight MH370 on March 24, 2014.
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Malaysia's acting Transport Minister Hishammuddin Hussein holds satellite images as he speaks about the search for the missing Malaysia Airlines flight MH370 on March 26.
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A satellite photo, showing the locations and co-ordinates of unknown objects reported by the Malaysian Remote Sensing Agency (MRSA) in the Indian Ocean. The images were taken on March 23 and released on March 26.
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A satellite photo, showing the location of unknown objects reported by the Malaysian Remote Sensing Agency (MRSA) in the Indian Ocean. The images were taken on March 23 and released on March 26.

Malaysia Airlines flight MH370 dropped to altitudes as low as 5000 feet, or 1524 metres, using a dangerous flying technique called "terrain masking" to avoid radar in at least three countries, investigators believe.

The plane with 239 people on board also kept to commercial airline routes as it flew for more than seven hours after turning back from its scheduled flight path over the South China Sea, they believe.

As the focus of police investigators has swung back to the pilots, authorities have revealed that whoever spoke to Kuala Lumpur air traffic control minutes after the plane's main communication system was disabled gave no clue that anything was wrong.

"All right, good night," some-one in the cockpit had said calmly, seemingly to mislead ground control that anything was wrong.

Investigators believe that by following commercial routes the plane did not raise the suspicion of people monitoring radar of the countries it overflew.

Terrain masking is used by military pilots for stealth flights.

Experts say flying a Boeing 777 in such a way would be dangerous, putting pressure on the 250 tonnes air frame and possibly causing those on board to be air sick.

The New Straits Times newspaper in Kuala Lumpur is quoting investigators as saying the "person who had control over the aircraft has a solid knowledge of avionics and navigation and left a clean track."

It quotes investigation sources as confirming the plane flew low over Kelantan in peninsular Malaysia.

The number of countries involved in the search for the plane has increased from 14 to 22 after new information revealed the plane's last confirmed position was in one of two corridors, one stretching from the border of Central Asian countries Kazakhstan and Turkmenistan to northern Thailand and a southern corridor stretching from Indonesia to the southern ocean.

Authorities in Kuala Lumpur insist they are giving no greater priority to either corridor and have appealed for countries to deploy more ships and planes to a vast expanse of water in the Indian Ocean west of Australia, where there is no land mass for thousands of square kilometres.

But it is understood investigators say it is more likely the plane is in the northern corridor where there are unstable governments, mountainous terrain and extremist groups.

Malaysia has asked countries to make data on their satellites available to assist the search but some have not because of sensitivities sharing information that involves national security.

Malaysia has also asked for more surveillance aircraft and ships, particularly in the southern corridor closer to Australia.

Malaysia's defence minister Hishammuddin Hussein said the search has swung from mainly shallow seas in the South China Sea to "large tracts of land crossing 11 countries, as well as deep oceans."

Experts are trying to nail down precisely how far the plane could have flown with the fuel on board but sources say the plane would have been close to running out at the time it was recorded in raw satellite data at 8.11am Malaysian time, after departing Kuala Lumpur airport at 12.31am.

Malaysia Airlines has confirmed that no additional fuel than normal was loaded on to the plane in Kuala Lumpur.

It had enough fuel for the almost six hour flight to Kuala Lumpur plus 45 minutes of fuel to spare in case of diversion to another airport.

Investigators are factoring in that plane would have burnt more fuel flying in the denser lower air.

Erratic manoeuvres would also have eaten into the fuel's reserves.

After a week of false leads, misinformation and confusion around one of the world's most baffling aviation mysteries, authorities in Kuala Lumpur have calculated from Immarsat satellite data the plane sent out six "pings," which are also known as electronic handshakes, after its communications equipment was deliberately disabled by some-one on board.

The seventh ping never came, indicating the plane either landed and the engine was shut off or it crashed.

Police have revealed that all of the passengers on board were found in initial checks to not have suspicious background, including two Iranians travelling on stolen passports.

But confirmation the plane veered far off course has intensified police probes into all those on board, as well as airport ground crew who came into contact with the plane before departure.

Malaysia's police chief Khalid Abu Bakar said some foreign intelligence agencies have yet to respond to requests to check whether anyone on board had links to terrorist or extremist groups.

The psychological and personal backgrounds of all on board are also being scrutinised.

Police have searched the homes of both the senior pilot Zaharie Ahmad Shah, 52, and co-pilot Fariq Abdul Hamid, 27, and taken away computers and other items.

They have seized a flight simulator in Zaharie's home and reassembled it at a police complex where it is being forensically examined by experts.

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mh370 SEARCHERS
HUGE AREA: Searchers examine maps of the Straits of Malacca as they hunt for the missing Malaysia Airlines flight MH370.

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