Doubts about the missing of Malaysia Airlines MH370

Question: Do you think all the planes disappeared after the last flight at the Malaysian capital's international airport? No need to be on duty for emergencies, delays, etc.? And there is no airplane window period of only three hours and it is impossible to turn off. . .

This description does not hold

Vulnerability 3: Regarding radar coverage

Original description: Therefore, it is usually at the junction between the air control center and another air control center. This is where the radar coverage rate is the weakest. More importantly, after any flight aircraft bids farewell to its own air control center, and then flies into the area of ​​another air control center, there is a two to three-minute blind area of ​​the flying radar, that is, the aircraft leaves an air control center and has not yet Enter the "no matter what" vacuum zone in front of another air control center. The radar network data that specifically tracks and receives the Transponder (Transponder) shows that the last time Malaysia Airlines Flight 370 aircraft automatically reported its position by the flight recognition device at 1:21, at 6°58′2″ north latitude and 103 east longitude. °37′8″, which is the "neutral position" at the junction of Kuala Lumpur and the Ho Chi Minh Air Traffic Control Zone.

Question: This description is also not valid. First of all, the mutual handover of ATC is a relay type, which is a conceptual handover of airspace. Moreover, the areas are overlapped. The surveillance area controlled by radar is only the most important when flying across the ocean. Only the middle area will be affected. . . It's okay, the route is reported in advance, we still have procedural control, not to mention the distance between the two places so close. . .

Vulnerability 4: About FMS

Original description: Boeing aircraft computer security control system,Set the descent angle of the aircraft to 30 degrees, the aircraft can continue to float and slide in the air, and the pilots on the aircraft have enough time to call the air traffic control center on the ground to urgently call Mayday and Mayday to notify the aircraft of malfunction or emergency.

Question: I don't know what he is trying to say. The EGPWS alert is aimed at Bank Angle and the rate of descent, and has nothing to do with the angle of descent. . .

Vulnerability 5: About ACARS system

The original description: American 9s is the advanced technology of Boeing's aircraft, which is not known to the outside world. , That is, an automatic aircraft satellite flight connection system is installed. As long as the aircraft is in flight, it will send out the pulse signal to the artificial satellite every five minutes to report the position of the aircraft. The monitored artificial satellite also reports the position of the aircraft to the aircraft in flight through the flight locator on the aircraft. The signal exchange "dialogue" between this aircraft and the artificial satellite is commonly known as the "handshake" of electronic signals in aerospace technology. And this kind of technical dialogue or handshake is the GPS navigation aircraft automatic flight system that we simply understand.

Question: The core of the airborne data link system is the ACARS Management Unit (MU). The management unit of the old version is defined by the ARINC 724B specification. The new version of the management unit, called the Communication Management Unit (CMU), is defined by the ARINC 758 specification.

ACARS airborne equipment consists of a terminal and a router. The terminal is the starting point for downloading ACARS messages and the ending point for uploading. MU/CMU is a router. Its function is to provide the most convenient downstream route through the air-ground network.In most cases, MU/CMU is also used as a terminal for AOC messages. Typical terminal systems include flight management systems (FMS), data link printers, maintenance computers, and cockpit terminals. ACARS is linked to ACMS. It does not have any direct contact with the engine. You told me that it is installed in the engine?

Vulnerability 6: Regarding transponder code

Original description: According to the international civil aviation aircraft's flight frequency regulation, the pilot will immediately adjust the frequency To 7600 trillion, it means that the aircraft has a mechanical failure. The 7500M frequency is the pre-set warning signal for the hijacked aircraft.

questioning: 7600---communication failure, 7500---hijacking, 7700---emergency review and then write an article

and the pilot can completely set up transponder

Vulnerability 7: About AUTOPILOT

Original description: A more thoughtful design is that Boeing has updated and upgraded more sophisticated flight safety controls on the basis of the original aircraft safety control flight system The system is called "Boeing Un-manoeuverable Auto Pilot" (abbreviated as BUAP system-Boeing Un-manoeuverable Auto Pilot). That is when the flight plan and destination are pre-made when an airplane flight, no one can tamper with it on the airplane. In an emergency, only the air traffic control center on the ground has the password to enter the flight control system on the aircraft. Re-enter the new program to change the flight plan of the aircraft.

Question: Hahahaha......... Then if there is weather, special circumstances, alternate landing, fly around, and enter the password one by one? My goodness, I suggest you look at the pilot's eye. .

There are too many situations. I found you a 777 FCOM of a domestic company and picked a part about modifying the route. You can take a look at the standard procedure, whether the pilot needs it or not. Cannot modify the route

No password is required, and the aircraft can be operated without air traffic control. The original text can be changed by the pilot as long as the air traffic control permits. The description of what hijacked the tower casually and various self-protection is even more non-existent. .

What other remote control landing, if it can be remote control, it would save trouble, where is the approach state accident, then why should we say that landing is dangerous? According to this logic, landing is not dangerous, where is it? What OZ214

Vulnerability 8: About the accident aircraft maintenance history and other reasons for the aircraft accident

Original description: And, it is no longer a strange "coincidence" The span9span Boeing-777-200 aircraft, on February 23, 2014, that is, less than 2 weeks before the accident, the entire aircraft has just undergone major maintenance! (Also, the Air France Flight 447 plane that crashed in the Atlantic Ocean inexplicably, the Polish presidential plane that crashed in Russia, including the president, the vice president, the director of national security, the chief of staff of the three services and other executives, and the two civil aviation planes of TransAsia Airways in Taiwan. ,Major maintenance works were carried out the day before or one or two weeks ago. These, have the opportunity to describe in another article).

Question: 370 is just a regular inspection. The Polish president’s special plane is due to weather. According to CAAC, it violates the eight-one objection. 447 is a weather + Pitot tube + operation problem. What caused the overhaul to GE235 is that a defect in a circuit board caused the engine to stop, and the unit CRM was not in place to shut down the wrong engine. . . . And GE222 is also because of the weather

Vulnerability 9: Regarding repairs

Original description: It must be stated that Boeing takes a "responsible" attitude and is also "aftercare" Part of the Boeing aircraft maintenance project alone, that is to say, all Boeing aircraft maintenance must be carried out by Boeing’s professional team, and the outside world can’t “get involved” at all.

Question: The maintenance teams of the major airlines are coming with knives. Then I would like to ask why each airline hires maintenance, isn't it Boeing's job?

Vulnerability 10: Regarding the 777 ceiling

Original description: The aircraft suddenly jumped up to 46,000 feet without any warning. The "limit" of the flying altitude of a civil aviation aircraft, and then suddenly plummeted like a free fall. When the plane fell below an altitude of two thousand feet, that is, below the coverage altitude of military radar, the officer on duty on Phu Quoc Island detected a bright spot on the radar, usually an explosion in the air, and immediately realized There may be a plane crash and crash,Therefore, the officer on duty reported the emergency to the commander of the military district.

questioned: 777 practical ceiling is 43100FT, which is 3100FT lower than FL460, and it is so high that the overload disintegrated early in the process of falling, how could it disintegrate until 2000FT...

And below 2000FT, you can still see the bright spots. Isn’t it below your radar range? 666666

Vulnerability 11: About low altitude performance

Original description: Malaysia Airlines flight 370 is in I flew over Genting Highlands, in the mountains of Malay Peninsula, up and down, left and right, adopted the "mountain hiding" that only fighter pilots use when fighting in the air ( Terrain Masking)

Question: The 777 is so big, the performance is not enough, the turbofan and the turbojet, you need to figure it out before talking about it, brother, how can there be the thrust and flexibility of the fighter?