Linggo, Abril 15, 2012
N. Korea Rocket Failure a Setback for Kim Jong Un
North Korea missile two minutes and 15 seconds after launch exploded, dissolved in about 20 pieces and fell into the sea to the west. North admitted to an unusual failure. Experts blame the problem with the rocket first stage amplifiers, boosters did not start to separate or hurried.
◆ Problems Booster
In the first stage booster exploded about 20 components in the Taean coast west of the western tip of the peninsula, where the state Byeonsan predicted it would land.
Approximately 56 percent of the first caused by a problem with the first phase. The explosion is believed to be caused by leakage of a computer malfunction or a turbo booster pump drive instead of separation. Woong Yoon-sup, a professor of engineering at Yonsei University, said: "If a problem occurs during the process of booster separation, there is little chance that the first stage booster explodes, all the fuel is exhausted."
Given that the following is not rocket satellite put into orbit by a lack of power from 2009, the north will increase and compensate for jet engine thrust this time also. Or would rocket exploded by remote control, automatic or cause an explosion caused by a rocket to change course, experts speculate.
◆ Launch hurry
Still others speculate that the accident occurred because the North ran to coincide with the centenary of the national founder Kim Il Sung. It is not clear why the regime launched a rocket from the mist-shrouded springboard for Friday morning, a day earlier than experts had predicted.
"Given the lack of preparation on the springboard Tong Chang-ri, we have the impression that North was in a hurry," the South Korean government official said. "The mode can be negligent in the exam," because other urgent Centennial awaits action in the coming days.
◆ No progress
In April 2009, the rocket to enter orbit, but the second and third stage amplifiers are successfully separated. This, even in the first stage booster is not separated, and exploded in the air. North has failed four times on long-range missiles or rockets to launch after the first in 1998.
South Korean military source said: "Even in some developed countries, rockets exploded in the pillow opening This is not the Missile Technology, North Korea, a step backwards.".
"It is true that long-range missiles in the North still lags behind that of Western appearance, but it seems that the technology gradually improved since 1998," one expert said the rocket.