Japan spent $4.5 billion to buy 98 f15j equipment upgrades from the United States

 Japan spent $4.5 billion to buy 98 f15j equipment upgrades from the United States

The U.S. State Department recently approved the sale of $4.5 billion worth of upgraded equipment to Japan, upgrading 98 f-15js to super Japanese intercept standard (JSI).

These f-15jsi will be equipped with apg-82 (V) 1 active phased array radar and alq-239 advanced electronic warfare system, as well as the ability to launch lrasm and other out of area weapons. The Americans also plan to extend the life of the f-15j and replace the central wing box so that the aircraft will be in service by 2040.

Japan Air Force now plans to replace the aging f-15j fleet with F-35 and f-15mj. In the future, Japans air force will be composed of 147 F-35, 98 f15jsi and 112 F-2 fighters.

F-15j drawing source of special coating: Japan Kongzi

The U.S. State Department has approved an application to sell upgrading packages for f-15j fighters to Japan. The U.S. plans to upgrade 98 of Japans f-15j fighters to the Japanese super interceptor (JSI) standard, the defense security cooperation agency said in a statement on October 29.

The total price of these upgrade packages is 4.5 billion US dollars, which means that the upgrade price of each f-15j is 50 million US dollars, which is only half of the price of F-35 purchased by Japan.

In this round of modernization and upgrading, Japans air force focuses on upgrading the weak BVR and C4ISR capabilities of the existing f-15j fleet. The United States will provide Japan with 103 sets of advanced an / apg-82 (V) 1 active phased array radar (AESA), 116 sets of advanced mission system computer core processor II (adcpii), 101 sets of alq-239 advanced electronic warfare system, which will be used for the transformation and upgrading of 98 fighter planes.

After the transformation, Japanese super interceptor will become the strongest F-15.

Raytheons an / apg-82 (V) 1 is an active phased array radar of f-15es, which has a good multi mission capability map source: Raytheons official website.

An / apg-82 (V) 1 active phased array radar is a radar used on the active f-15es of the U.S. Army. It has a longer detection range and excellent multi-purpose capability.

The an / apg-82 (V) 1 will give the f-15jsi the ability to launch an out of area cruise missile. After refitting this type of radar, these f-15jsi are capable of launching lrasm and jassm advanced long-range defense zone cruise missiles. Previously, according to defense news, Japan purchased the agm-158 joint air surface missile (jassm) from the United States in 2018.

Statement released by Defense Security Cooperation Agency on October 29 source: DSCA

Japan was one of the first countries to receive the F-15. In 1977, the Japanese government passed the procurement F-15 evaluation, and in 1980, the United States began to deliver the F-15. In 981, the Japanese air self defense force formed the first f-15j combat force.

Due to the older age of Japanese f-15j, the United States will extend the life of 98 f-15j in this round of upgrading. The U.S. defense industry is likely to replace the wing box structure of the 98 fighters. The workload is actually equivalent to building a new aircraft. Previously, the U.S. Air Force had overhauled the first batch of f-15cs, and some f-15cs also replaced wing box structures.

Although it was acquired early, the f-15j in Japan was upgraded slowly for various reasons. After entering the new century, only a small number of f-15j added Link-16 data link. After 2007, Japan originally planned to transform the over the horizon combat capability of F-15 and install infrared tracking system (IRST), but this upgrade was cancelled by the Japanese authorities in 2009. Due to the delay in upgrading, Japans current F-15 fleet has poor over the horizon combat capability.

At present, Japan air has 201 f-15j / DJs. In addition to the 98 f-15jsi upgraded in this round, the remaining 103 F-15s will be retired after 2020. Japan plans to replace the retired f-15j with the same number of f-35a fighters. By October 2019, not counting the one lost in the accident, Japan already has 13 f-35a fighters.

F-35a map source deployed in Japans sanze base: Japan Air Self

Japan is the largest overseas buyer of F-35. Although the F-35 series fighter is an advanced and mature stealth fighter, its supersonic capability is very poor, and its maximum speed is only Mach 1.6. Because of its long and narrow territory, Japan has always wanted a fast aircraft to take over from the f-15j to carry out more and more interceptions in recent years.

Japan had tried to buy the F-22 but was turned down by the US. Later, the Japanese authorities also rejected the F-22 / 35 hybrid project promoted by Lockheed Martin, which made Japan Air Force decide to upgrade 98 f-15j in order to carry out the interception mission in the next 10 years.

By 2035, Japans Air Self fighters will consist of 147 F-35, 98 f15jsi and 112 F-2 fighters.

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