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Top 8 facts about South Korean KF 21 Fighter jet: Specification, Partnerships, Weapons, and capacity

1. It took its first maiden flight in July 2022. 

The Korean Aerospace Industries built the air superiority fighter KF 21 Bormae with Indonesia’s assistance. Its airframe is more stealthy than any fourth-generation fighter, but unlike fifth-generation fighters, it does not carry weapons through an internal bay.

It made its first flight from the production facility on July 19, 2022. The Korean name Bormae translates to “young Hawk” in English. At least 40 aircraft are expected to be delivered by 2028, according to the report. but it will also be offered on the international market.

Top 8 facts about South Korean KF 21 Fighter jet: Specification, Partnerships, Weapons, and capacity

2.It is a 4.5 Generation fighter jet. 

To replace the outdated F4 and F5 fighter fleet, an alternative fighter is being developed for the Republic of Korea’s air force. It is a multirole fighter jet of the 4.5 generation, the source said. Initially, South Korea sought to develop a fighter aircraft that could outperform the Typhoon and Dassault Rafale.

Technically speaking, though, it necessitated extensive study and creation. They nevertheless made an effort to design a plane that would compete with the F16 Fighting Falcon in terms of combat range, a 34% longer airframe, and better weaponry.

US Army and Sikorsky agree on a $2.3 billion purchase of Black Hawk helicopters(Opens in a new browser tab)

3.Indonesia is a partener for KF 21 progrm.  

Most nations cooperate in the program to lessen the burden of the financial aspects because it takes proper investments to develop any technology. In KF X, Indonesia joined the regional program in 2010 as per a committee agreement for 20% ownership. Later, however, KAI claimed that it had not made the agreed-upon payments. Later, an agreement was reached between Indonesia and South Korea to create a new cost-sharing plan by 2022.

Top 8 facts about South Korean KF 21 Fighter jet: Specification, Partnerships, Weapons, and capacity

4. KF 21 backed by Lockheed martin

The KF-21 program is supported by American titan Lockheed Martin, which is supplying the program with a number of design consultancy components. The staggering list of imported systems, along with numerous industrial-grade tools and consultancy to rely on for technical developments, includes everything from brake pads to flight controls systems, LRUs, landing gear, avionics, canopies, oxygen generators, radar, engines, ejection seats, and even the aircraft’s software management system.

As part of a purchase agreement, Lockheed Martin consented to transfer two dozen F-35A technologies. Four crucial technologies, AESA radar, infrared search and track (IRST), electro-optical targeting pod (EO TGP), and radio frequency identification (RFID), were, however, prohibited from export by the US government.

5. Stealth Fighter variant by 2035. 

According to KAI, most of the systems may have been locally indigenous by the time the KF-21 Block III, which is expected to be a true stealth fighter variant by 2035, is released. However, until that time, the KF-21 is just a 4.5-generation fighter jet with elements of the 5th generation fighter, which is still being developed. Though the program is heavily supported by American defense industrial partners, which would still be under US control, must still be acknowledged. It will also take until 2035 before KAI has its own domestically developed technology.

Top 8 facts about South Korean KF 21 Fighter jet: Specification, Partnerships, Weapons, and capacity

6. Expensive military project in Korean history

Indonesia is said to be asked to reduce its share in the joint investment and development of the KF-21 by 5 percent and for more technology transfers than stipulated in the original agreement. The development of the KF-21 has been called the most expensive military project in Korean history, with a price tag of approximately 8.5 trillion won ($7.8 billion) for development alone. According to the government, 719 Korean businesses have participated in the development of the KF-21. About 65 percent of over 30,000 parts used in the prototype aircraft were made in Korea.



The KF 21 can be operated by a single and double crew.

  • It is 15 feet 5 inches tall, 55 feet 5 inches long, and has a wingspan of 36 feet 9 inches.
  • It weighs 18,800 kg when empty and can support a maximum weight of 25,400 kg.
  • It had a 2 GE 414 engine that can produce 57.8 kilonewtons without an afterburner and 97.9 kilonewtons with one.
  • It has a range of 2,900 km and a top speed of Mach 1.81.

Speaking about the weapon package of the KF 21

  • It has ten Hard points. which is equipped with air-to-air missiles such as the MBDA, AIM 120, Diehl IRIS, and AIM 9x.
  • It features anti-ship missiles like AGM 84 Harpoon and air-to-ground missiles like Taurus and AGM-65.
  • It is capable of transporting conventional and precision-guided bombs like JDAM, GBU, and KGGB.



The KF 21 fighter jet has AESA radar, an infrared search and track system, an electro-optical targeting pod, datalink capabilities, a radiofrequency jammer, and many more characteristics. It is estimates the cost of the KF-21 at $65 million per unit.

Please share your thoughts on the Korean-built KF 21 fighter plane in the comments area.



He is an aviation journalist and the founder of Jetline Marvel. Dawal gained a comprehensive understanding of the commercial aviation industry.  He has worked in a range of roles for more than 9 years in the aviation and aerospace industry. He has written more than 1700 articles in the aerospace industry. When he was 19 years old, he received a national award for his general innovations and holds the patent. He completed two postgraduate degrees simultaneously, one in Aerospace and the other in Management. Additionally, he authored nearly six textbooks on aviation and aerospace tailored for students in various educational institutions. jetlinem4(at)


China’s Indigenous HH-100 UAS Successfully Completes First Flight

China’s Indigenous HH-100 UAS Successfully Completes First Flight

In a significant milestone for China’s aviation industry, the HH-100 aerial commercial unmanned transportation system successfully completed its maiden flight, as announced by the Aviation Industry Corporation of China (AVIC) on Wednesday.

The HH-100 demonstrator took to the skies for its inaugural flight at a general aviation airport in Xi’an, located in northwest China’s Shaanxi Province. This successful test was conducted by AVIC, China’s leading aircraft manufacturer, marking a pivotal step in the development of the country’s unmanned aerial vehicle (UAV) capabilities.

Developed independently by AVIC XAC Commercial Aircraft Co., Ltd., a subsidiary of AVIC based in Xi’an, the HH-100 consists of two main components: an unmanned aerial vehicle and a ground-based command-and-control station. This innovative system is designed to offer a cost-effective, high-payload solution for various transportation and logistical needs.

The HH-100 is notable for its low cost and large tonnage capabilities. With a designed maximum take-off weight of 2,000 kilograms and a payload capacity of 700 kilograms, it can transport approximately 4 cubic meters of cargo over a range of 520 kilometers. The drone’s maximum cruise speed is 300 kilometers per hour, and it can operate at altitudes up to 5,000 meters.

Primarily intended for feeder logistics, the HH-100 is also equipped to participate in a variety of other roles, including forest and grassland firefighting, fire monitoring, transportation and delivery of rescue materials, relay communication, and artificial rain enhancement. This versatility makes it a valuable asset in both commercial and emergency response operations.

Looking ahead, AVIC plans to develop a series of products based on the HH-100 platform, with models capable of carrying 5 tons, 10 tons, and even larger payloads. These future developments aim to meet the growing demand for large-scale, intelligent, low-cost, and highly reliable unmanned cargo planes.

The HH-100’s successful first flight marks an important achievement for AVIC and China’s aviation sector, showcasing the potential of homegrown technology to advance the country’s capabilities in unmanned aerial transportation. With its impressive range of features and applications, the HH-100 is poised to play a significant role in enhancing air-ground transportation connectivity and addressing various logistical challenges in the region.

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Russia’s Venture into Spare Parts Production for Western-Made Jets

Russia's Venture into Spare Parts Production for Western-Made Jets

In a strategic move to mitigate the challenges posed by the shortage of spare parts for foreign-made passenger aircraft, Russian carriers are charting a new course by turning to domestic alternatives. At the forefront of this shift are two groundbreaking projects unveiled at the St. Petersburg International Economic Forum on June 6.

Leading the charge is Protektor Group, a prominent Russian MRO provider, which has committed a substantial investment of RUB3.5 billion ($39 million) to establish a cutting-edge facility near Moscow Domodedovo airport.

This facility is slated to specialize in the production of spare parts tailored for Airbus A320 and Boeing 737 narrowbody jets, with operations expected to commence in 2026. With a projected workforce of 800 employees, the facility aims to address the pressing demand for critical components in the aviation sector.

This initiative aligns seamlessly with broader governmental endeavors outlined in June 2022, which envisioned the manufacture of 1,036 airplanes using solely Russian parts by 2030. Bolstering this ambition, the state allocated a substantial sum of 283 billion rubles (U.S. $3.1 billion) in January 2024 to propel the production of 609 aircraft, with a particular emphasis on medium-haul models.

Protektor’s trajectory towards this pivotal milestone has been marked by notable achievements, including receiving production organization approval from Rosaviatsia in 2024. Prior to this, the company had earned certification for the overhaul of landing gear for Boeing 737s, solidifying its position as a trusted entity in aircraft maintenance.

Beyond the realm of spare parts production, the Russian aviation industry is poised for a significant transformation as it gears up to redefine its identity. Sergey Chemezov, the head of Rostec, the state-owned conglomerate overseeing aerospace, engineering, and defense sectors, has unveiled ambitious plans to resurrect the renowned ‘Yakovlev‘ brand. This rebranding initiative extends across the spectrum of Russian-made airliners, signaling a new era of innovation and prominence.

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Airbus Welcomes Sixth and Final BelugaXL to Complete Fleet

Airbus Welcomes Sixth and Final BelugaXL to Complete Fleet

In June 2024, Airbus marked a significant milestone with the induction of the last of six BelugaXL aircraft into its fleet.

This completion heralds a new era for Airbus Transport International (ATI), the company’s internal airline, enhancing its industrial capabilities with a new generation of heavy-lift aircraft. The BelugaXL, successor to the iconic A300-600ST ‘Beluga’, has been pivotal in this transformation since its first introduction as a test platform in 2018.

The BelugaXL program was initiated in 2014, bringing together a centralized development team of around 1,000 engineers and suppliers. This consolidation of expertise allowed for more streamlined decision-making and process simplification, accelerating the aircraft’s development timeline. By reusing parts, equipment, and design principles from other Airbus platforms, the BelugaXL was able to move from the drawing board to its maiden flight in just five years.

Built on the A330-200 freighter platform, each BelugaXL boasts a payload capacity of 51 tonnes and a range of 2,200 nautical miles, offering 30% more payload capacity than its predecessor. Its cavernous hold can accommodate the largest A350 fuselage sections or two 30-metre long wings, doubling the capacity of the original Beluga. This enhanced capability is central to Airbus’ strategy of ramping up production across its commercial aircraft programs in 2024.

ATI, an Airbus subsidiary since 1996, will now operate the complete fleet of six BelugaXLs. These specially commissioned airlifters, built in Toulouse, France, are integral to Airbus’ logistics, transporting sub-assemblies and components between manufacturing sites in France, Germany, Spain, and the UK. Each mission features a remarkable turnaround time of just 70 minutes, facilitated by specially designed loading facilities.

The inaugural BelugaXL, after serving as the test aircraft, has undergone a major refurbishment and is now ready to contribute to the fleet’s heavy lifting. This addition is timely as Airbus gears up for increased production across all its commercial aircraft lines. By 2027, the BelugaXL fleet is expected to reach 9,500 flight hours annually, up from a planned 6,500 flight hours in 2024.

Sustainability is a key focus for Airbus. The BelugaXL can operate on a blend of sustainable aviation fuel (SAF), supporting Airbus’ goal to gradually increase SAF use in its operations. By 2030, Airbus aims for the fleet to operate entirely on SAF, aligning with its broader sustainability roadmap.

The greater capacity of the BelugaXL also means fewer flights are needed, reducing carbon emissions. ATI projects that in 2024, the fleet will transport approximately 5% more payload compared to 2019’s mixed fleet of BelugaXLs and Beluga STs, while emitting 20% fewer carbon emissions.

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