воскресенье, 30 марта 2014 г.
Of particular importance is the way the landing gear is configured to distribute this weight upon la
On March 8, a Malaysia Airlines Boeing 777-200ER departed from Kuala Lumpur with 227 passengers and 12 crew members. It departed at 12:41am (1441 GMT), and was due in Beijing best western hotels palm springs at 6:30am (2230 GMT) that same day. It hasn t been seen since. This report attempts to debunk some of the theories best western hotels palm springs about that disappearance and make a new assertion about what might have befallen the passengers and crew of that ill-fated flight. Flight MH 370.
Conspiracy theories don t hold water because they ignore certain things that have to happen in conjunction with those events best western hotels palm springs in order for them to be correct. What all the theories about the disappearance of this plane leave out are the important aircraft systems that would react (or try to) in any mishap involving the plane. Here are a few.
The Cabin Emergency Depressurization Oxygen System. The Rubber Mask Jungle drops if the cabin pressure drops below a certain level – typically at 14,000 feet. The pilots can deploy the system manually or leave it set on automatic. But the pilots cannot turn it off.
Conspiracy theories about shutting best western hotels palm springs this off to kill the passengers fail to take the system design into account. That theory is also based on the claim that the plane climbed from 35k to 45k feet. Two problems with that claim. First, it exceeds the plane s service ceiling by 3k and occurred in a few seconds on the recorded radar track that Flightradar.com has. An SR-71 can t climb 10k feet in 5 seconds. This ascent best western hotels palm springs occurred at the edge of the detection range of Kuala Lumpur s ATC system. It is a radar anomaly. It didn t happen.
The Emergency Landing Transponders. Depending on the model, the 777 has either 4 or 6 of these transponders located throughout the fuselage. They automatically turn on when they detect rapid deceleration of the aircraft due to a crash landing. best western hotels palm springs The pilots can manually turn this system on to broadcast its signal prior to a crash or ditching at sea or leave it on automatic, but they cannot turn it off.
Conspiracy theories about a bomb going off and obliterating the plane so that all the ELBs are destroyed doesn t account for the amount of explosives needed and their placement to hit them all at the same time. Musta been the same crew that packed 10,000 tons of explosives and ran a couple of thousand miles of det cord up and down the Twin Towers without anyone noticing anything.
Additionally, we have thermal imaging Sats looking at the South China Sea (Korean and Chinese missile launches?) and they would have detected that explosion. The route was heavily traveled by planes best western hotels palm springs and ships. The explosion and the flaming debris raining down for as much as three minutes would have been visible. A lit cigarette on a ship is visible for 5 miles at night. How far do you think you could see 150 tons of flaming fuel and debris raining down from the sky?
ACARS (Aircraft Communications, Addressing and Reporting System): This functions as a kind of Telex system that allows the airline or airports to send voice or text messages to the plane and vice versa. It relies on Sat, VHF and HF broadcast frequencies to operate.
What’s important is that this system continues to ping a handshake best western hotels palm springs to the plane and the plane responds to it even if the unit is turned off in the cockpit. Because this system sends its signals on VHF and HF frequencies that are located in land based towers, it could be used as a tracking system for the aircraft best western hotels palm springs if people on the ground sent continuous message traffic to the plane.
best western hotels palm springs They could see which VHF and HF towers got an acknowledgement response of those messages back from the plane and the relative signal best western hotels palm springs strength to each and make some educated guesses about the location. They probably turned off the system for this reason.
The plane landed best western hotels palm springs in Pakistan/Afghanistan somewhere. This theory sounds great, as long as you forget certain facts, one technical, the other political. First, one doesn t just plop a Triple-7 onto a dirt runway best western hotels palm springs somewhere and cover it with palm fronds. It s roughly the size of the Boeing 747 and weighs 330 tons fully loaded. Runways have to be long and specially built to handle the weight of planes in this classification.
Of particular importance is the way the landing best western hotels palm springs gear is configured to distribute this weight upon landing. If the runway is not constructed with these loads in mind, the asphalt will collapse best western hotels palm springs under the weight and the landing gear will plow through the substrate layers and likely throw tires and collapse . (That means crash). So unless those arguing this theory have an actual runway in mind that they can point to with a Pavement best western hotels palm springs Classification Number (PCN) that can handle the Aircraft Classification Number (ACN) of the 777, it’s not worth much in terms of speculation.
One theory floated in the media was that the plane had an electrical fire that instantly knocked out all the comms and transponders (not likely) and landed at an airfield in Malaysia up the coast with a PCN of 77, while the Triple-7s PCN was 89. Now, they might let you tear up a runway and an airliner in an emergency and land an ACN-79 on a PCN rated for nothing higher than a 77, but they won t waiver you for a 12-point spread. That makes it for the season finale of Air Disasters on Smithsonian.
The political consideration is the more important one. For 30 years Pakistan has been nurturing relations with China to the point that they conduct joint military exercises on their shared border. MH 370 had some 155 Chinese nationals on board. And these were not peasants best western hotels palm springs on vacation. They were business men, likely connected to the Communist Party in China by relations or by direct membership. best western hotels palm springs Would it be in Pakistan s interests to have any hand in the murder of those people? Would Pakistan benefit by having a belligerent India with 1.2 billion people on their SE border and a newly belligerent China with 1.3 billion on their NE border?
Other information that was skimmed over. Did a US Navy Submarine hear the plane impact the water off the Andaman Islands? On March 13th, Martha Raddatz, Senior Foreign Affairs Correspondent for ABC News filed a story about the comms systems being shut down separately with this statement: U.S. officials said earlier that they have an indication the missing Malaysian best western hotels palm springs Airlines jetliner may have crashed in the Indian Ocean and is moving the USS Kidd to the area to begin searching. I believe this is one of the most credible pieces of information about the disappearance of this airliner to come from any source.
First, it went to the Senior best western hotels palm springs Foreign Affairs Correspondent from ABC News, not some stringer or foreign journalist. It s probably a cultivated source of hers. Second, the source is carefully masked as a generic US Official which generally means a military source who doesn t want to be identified for leaking information. best western hotels palm springs Third is the word indication without elaboration except to tie it directly to the plane crashing into the sea. I ve seen information obtained from submarines disclosed in this kind of obscure way before in the media. I think a USN Sub on patrol off Malaysia, perhaps transiting best western hotels palm springs to the Persian Gulf, may have heard the airplane hit the water.
best western hotels palm springs Here is what may have transpired. A sub s passive sonar station is constantly manned night and day. It consists of a series of arrays of hydrophones that run along the hull on both sides and a computer that can analyze the sounds the sub hears and help classify them for the combat information center best western hotels palm springs on the sub.
This computer can also determine a line of bearing on the contact and estimate the range (and even the depth if submerged) by comparing the sound signatures best western hotels palm springs between hydrophones as they run along the hull. Its accuracy in predicting range decreases depending upon the distance of the sound source and other factors like temperature, depth, salinity and the thermocline layers that these factors combine to create.
A 330 ton airliner hitting the water at 500-600 kts. would sound like a gigantic explosion underwater. And I mean gigantic, roughly 4,500 lbs of TNT going off and exerting a force of 20,000 psi on the water at the impact area. This would result best western hotels palm springs in a giant over-pressure condition in the water that would emanate out as a shock wave (in contrast, the big depth charge explosions in WWII movies were only 300lb charges). It would have a huge sound signature that would travel tens, if not hundreds, of miles, depending upon conditions.
If the sonar operator heard such a sound, they would give it a contact number and log it. At intervals during the day and night, the submarine un-spools an ultra-high frequency antenna buoy and transmits a micro-burst of radio energy to a Sat, which gives the subs position, course, heading, crew emails and various situation reports that would include contacts of interest or unusual occurrences that they think they should phone in. A large underwater explosion would probably qualify as an unusual occurrence.
Raddatz s report does not say what time that indication was obtained, which further suggests a submarine provided the information. Tell the time and place you heard the noise and you ve got a good idea of that sub s position. We can assume from the time the ACARS pings were being logged that this would have been early daylight of March 8th. That indication was considered so credible that the Navy diverted the USS Kidd to the area at high speed to investigate an area that was probably more narrowed down for it by the Pentagon.
Unfortunately the connection between that underwater best western hotels palm springs explosion best western hotels palm springs and the missing airliner was not made by the Pentagon until the 11th or 12th, by which time the debris field would have dispersed considerably if any floating debris even existed.
There were also reports from China of a seismic best western hotels palm springs event along the flight best western hotels palm springs path of MH 370 , but that occurred at 0255 hrs, when we know the plane was still flying because best western hotels palm springs the ACARS sat was still getting a handshake signal from the plane. The Chinese have since withdrawn this event as being not re
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