KAI KF-X - Design and Development

Design and Development

According to the Weapon Systems Concept Development and Application Research Center of Konkuk University, the KF-X is intended to be superior than the KF-16, which would replace South Korea's aging F-4D/E Phantom II and F-5E/F Tiger II aircraft, with production numbers estimated to be over 250 aircraft. Compared to KF-16, the KF-X will have a 50% greater combat radius, 34% longer airframe lifespan, better avionics including a domestically produced AESA radar, and better electronic warfare, IRST, and datalink capabilities. Operational requirements also specify approx 50,000 pounds of thrust provided by one or preferably two engines, high-speed interception and supercruise capabilities, basic stealth technology, and multirole capabilities. There are currently two competing designs for the KFX, the KFX-201 which has a tri-plane layout with canards and a more conventional, Single Engine F-35 style KFX-101 design.

South Korea will fund 60% of the aircraft's development, and expects foreign partners to provide the remaining 40% of the development funding. South Korea possesses 63% of the necessary technology to produce the KF-X, and is therefore seeking cooperation from Indonesian Aerospace, Turkish Aerospace Industries, Saab, Boeing, and Lockheed Martin to develop the KF-X. About 120 KF-Xs would be built initially and more than 130 aircraft would be produced additionally after the first-phase models reach operational capability. The cost of each KF-X aircraft is estimated to be roughly $50 million +.

In October 2009 a retired general in the South Korean Air Force was arrested for leaking classified documents to Swedish aviation and defence corporation Saab. The general was to have been given a bribe of several hundred thousand dollars for copies of a number of secret documents that he had photographed in the South Korean Defence University. Saab officials denied any involvement.

On 15 July 2010, the Indonesia government agreed to fund 20% of KF-X project cost in return of around 50 planes built for Indonesian Air Force after project completion. In September 2010, Indonesia sent a team of legal and aviation experts to South Korea to discuss copyright issues of the aircraft.

On 7 September 2010, Maj. Gen. Choi Cha-kyu, director general of the aircraft program bureau at the Korean Defense Acquisition Program Administration (DAPA) said that Turkey was interested in joining the program.

On 15 December 2010, a senior Turkish procurement official said that "What we need is a true and equal partnership for the development of a fighter. The problem is that South Korea is not likely to agree to an equal partnership".

In December 2010 the program shifted from a F-16 class fighter to a stealth aircraft in order to respond to North Korean pressure.

On 2 August 2011, a joint research center was opened in Daejeon.

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