by DENIS CUNY on March 22nd, 2014
filed under News
Malaysia Flight MH730 easily escape radar surveillance and disappeared in the air. This incident highlights the modern aviation industry an uncomfortable paradox: the most advanced aircraft rely on aging ground navigation infrastructure .
Although satellite shaping almost every aspect of modern life , but for many pilots , cockpit radar surveillance and radio communication systems has not changed much compared to the past .
Although Malaysian authorities suspect someone hijacked MH730 flight, but 26 countries have an inability to find weighs 250 tons of Boeing 777 aircraft , it has shocked the Batterie HP HSTNN-Q21C
, has also exposed flaws radar systems. In the desert or over the sea , the radar signal becomes weak .
” It’s not very accurate . World has made little progress .” Aireon president of Iridium satellite mobile communications company and the Canadian Air Traffic Control Board in 2012 jointly launched space-based aircraft tracking company Don Thomas (Don Thoma) said.
” We track our cars , track our children’s mobile phone, but when our plane flying over the ocean or other remote areas , we do not track .” He told Reuters reporters .
Experts say that satellites can provide a clear answer.
” Direction of development of satellite navigation and communications in the navigation area, we need to get rid of ground radar , in communications, we need to get rid of the radio .” Radar experts and aviation consultant Hans Weber (Hans Weber) said.
Costly route overhaul
Some people advocate line for overhaul of aviation , said the inefficiencies caused not only cause the aircraft radar fare increase, and because the plane was late leaving economic losses. Such an overhaul could be costly.
” Because of the air traffic controllers use voice communication , have to keep a greater distance between planes to avoid and lost contact with the ground .” American consulting firm TECOP International President Weber (Weber) said.
In the United States and the European Union , two massive plans for creating a new airspace system could change all that. Under the scheme , airlines will have to pay costly , but may also earn high profits. But critics say the plan is too wasteful, but progress will be slow .
For years , the U.S. aerospace industry has been urging the United States is expected to cost $ 40 billion air traffic control system overhaul , but its cost and complexity makes slow progress of the program , the U.S. Congress has repeatedly cut funding for the project .
Next Generation Air Transportation System (NextGen) full implementation of the original plan in 2025 , but the U.S. federal government ‘s spending plans for the reduction of the plan may be delayed .
Part of this new system is already in place, such as ADS-B surveillance system has been installed in many aircraft cockpit , but due to funding constraints , the other part has been delayed.
Lockheed Martin Corporation (Lockheed Martin), Harris Corporation (Harris Corp) and Batterie HP Pavilion dv7
and Raytheon Company (Raytheon) is the main contractor for the project.
Europe has some of the world’s largest flight airspace , an estimated 33,000 flights a day. Europe launched an ambitious plan – the Single European Air Traffic Management Research (Single European Sky ATM Research, SESAR). The purpose of this project is 2020 , it tripled airspace capacity , reduce by half the cost of air traffic management , infrastructure reconstruction in Europe.
A study in 2011 of McKinsey & Company (McKinsey) shows that the implementation of SESAR will enable the European 2013-2030 GDP increased by € 419 billion , creating 328,000 jobs and positions, so flight time is reduced by 10% .
European countries because of friction on airspace management , as well as the European debt crisis , this research program has also been delayed. Airbus (Airbus), Thales (Thales) and Honeywell (Honeywell) are involved in the program. Some European aviation managers oppose the plan.
Canada FLYHT Aerospace Solutions has developed a satellite-based and Internet system, which has been 40 operators use , such as airlines and commercial aircraft operators. The system is used to monitor airborne systems , drawing the flight path , providing voice communications and on-demand streaming black box data .
U.S. company director Richard Hayden (Richard Hayden,) said that the system can be used as an alternate navigation system because it relies on satellites provide GPS tracking , cockpit voice prompts , data and text transmission. He added, however , that the system will not meet all the special requirements of the new generation of air traffic control navigation system .
For decades, air traffic controllers sit in front of the radar screen , the use of radio communication with pilots , aircraft navigation help reduce air accidents.
However , over the wide waters , such as busy over the North Atlantic , this is a high -frequency radio communications , unstable.
Some pilots said that in the sea air line , equipped with a satellite communication system communication system aircraft are now increasingly using what is called a pilot data link communications (Controller Pilot Data Link Communications) , in order to establish air traffic control Batterie HP G61-420SF . Using this system, the pilot can also request a change in altitude .
However, this system has not yet established a standard , and it requires airlines to pay satellite service fees , but not all airlines are willing to pay for it .
In fact, Malaysia Airlines did not buy the satellite service MH730 flight aircraft , which makes it more difficult to find job changes . Malaysian officials have not ruled out the possibility that the aircraft technical problems.
However , it is not enough merely to provide communications services , which is one reason why the aircraft entered the digital age slower .
“Communication systems must be super- reliable and secure and we can not rely on a high failure rate of the system , 100 times a communication failure occurs , it is acceptable for the phone , but the aircraft communications is unacceptable. Pair aircraft communications , the failure rate is one -billionth of an acceptable safety factor . ” Weber said.