US reconnaissance plane under jamming attack bu North Korea

A US military reconnaissance plane came under electronic attack from North Korea and had to make an emergency landing during a major military exercise in March, an aide to a lawmaker said Friday. The aide said the plane suffered disturbance to its global positioning system (GPS) by jamming signals from the North's southwestern cities of Haeju and Kaesong as it was taking part in the annual US-South Korea drill, Key Resolve.
The incident was disclosed in a report that Seoul's defence ministry submitted Thursday to opposition lawmaker Ahn Kyu-Baek of parliament's defence committee, the aide to Ahn told AFP.
Spokesmen for the defence ministry and US Forces Korea declined to comment.
Jamming signals, sent at intervals of five to 10 minutes in the afternoon on March 4, forced the plane to make an emergency landing 45 minutes after it was airborne, the aide quoted the report as saying.
They also affected South Korean naval patrol boats and speedboats as well as several civilian flights near Seoul's Gimpo area, according to the report.
Seoul mobile users also complained of bad connections and the military reported GPS navigational devices malfunctioning as the South and the US were staging the drill, which was harshly criticised by the North.
The communist state has about 20 types of jamming devices mostly imported from Russia and it has been developing a new device with a range of more than 100 km (62 miles) near the heavily fortified border, Yonhap news agency has said.
The North is also believed to have been responsible for the intermittent failure of GPS receivers on naval and civilian vessels along the west coast in August 2010.
South Korea's then-defence minister Kim Tae-Young said at the time that the devices could disrupt guided weapons and posed "a fresh security threat" to Seoul.
The UN's International Telecommunication Union in April urged the North to stop disrupting signals in the South.

Iran Looks Korean

Satellite, and ground, photos of Iran's new missile launching site demonstrates amazing similarity to North Korean facilities. Both Iran and North Korea deny that they cooperate in missile technology. But decades of North Korean missile technology, and North Koreans, showing up in Iran have made it pretty obvious what is going on. Iran, due to lack of experience, and embargos keeping everyone else away, was forced to go to North Korea for advanced missile technology. Thus the long range (about 4,000 kilometers) Taepo Dong 2 missile that is currently built in North Korea, has a price tag on it. Iran is willing to pay well for missile technology, because North Korea also offers missiles for sale.
Iran manufactures a 1,300 kilometer range missile, the Shehab-3, as well as several others with shorter ranges. Iran has offered them for sale, but has found few prospective buyers. North Korea already has the outlaw missile market cornered. Iran has been under an arms embargo (for most major weapons exporters) since the Islamic revolution of 1979. China and North Korea have broken the embargo, but quietly.
North Korea has taken the basic Russian SCUD missile (which was developed, with the help of captured German scientists, from the German World War II V-2 ballistic missile) and improved it as the longer range (1,300 kilometers) Nodong missile. The basic SCUD design was also enhanced to produce longer range (up to 600 kilometers) SCUDs. All of these have been sold to foreign buyers like Yemen, Iran and Pakistan.

Strategy Page.

North Korea Updates A Cold War Classic:RSM-25

Japanese intelligence believes that North Korea is close to putting into service their new RSM-25 (or Musudan) ballistic missile. It was only last year that a military parade in North Korea featured the first public appearance of the long rumored RSM-25 missile. This is a variant of the Russian SS-N-6 submarine launched missile. The North Korean version is believed to weigh 20 tons and have a range of over 3,000 kilometers. The Japanese believe the range of the North Korean missile may be as much as 4,000 kilometers. It is believed that the North Korean version, using solid fuel rockets, was tested successfully two years ago.

The SS-N-6 is a 1960s vintage ballistic missile, and is known in Russia as the R-27. SS-N-6 is a NATO code name for the R-27. This was Russia's first true submarine launched ballistic missile (SLBM), and sixteen of them were carried in Yankee class SSBNs (missile carrying nuclear submarines.) The 12 ton R-27 had a range of 2,800 kilometers and used storable liquid fuel. This means it can be ready for launch in less than half an hour.
After the R-27 was replaced by more modern missiles in the 1970s, the missile continued to be used for scientific research until 1990. By that time, 492 R-27s had been launched, 87 percent of them successfully.
It would be very embarrassing for the Russians if someone had illegally exported SS-N-6/R-27 missiles to North Korea. It is more likely, and was been reported a few years ago, that the Russian organization that designed the R-27   illegally sold the plans to North Korea. This was supposed to have happened sometime in the 1990s, and the main reason for the deal was so that North Korea could obtain the R-27 missile guidance technology. The Russians kept improving the guidance system of the R-27 through the 1980s, while the North Koreans were desperate for missile guidance technology. But it appears that the North Koreans built at least one R-27, and may have incorporated R-27 technology in some of their other long range ballistic missiles. The North Koreans were apparently pleased with the R-27 design, and spent the time and effort to change it so that Musudan used more reliable solid fuel rocket motors, than the original liquid fuel ones.

Strategy Page.