[Asia Economy Reporter Choi Dae-yeol] Four subsidiaries of Hanwha Group's defense industry division will operate an integrated exhibition hall at the Seoul International Aerospace and Defense Exhibition (Seoul ADEX 2021) for five days starting from the 19th. These include Hanwha Corporation, Hanwha Aerospace, Hanwha Defense, and Hanwha Systems. This marks their first joint participation in the exhibition since the launch of the 'Space Hub' consortium in March, which connects space-related businesses and personnel from each subsidiary.
At the center of the exhibition hall, the Space Hub Zone showcases technologies currently under development or planned for the future, including launch vehicles, optical and communication satellites, and satellite propulsion systems. The 75-ton liquid rocket engine produced by Hanwha Aerospace is the same model equipped on the Nuriho, which is scheduled for launch in Goheung on the 21st. The actual combustion chamber used in testing is on display. The Nuriho is a three-stage launch vehicle designed to place a 1.5-ton-class practical satellite into low Earth orbit. The first stage uses four 75-ton-class liquid engines, the second stage uses one 75-ton-class engine, and the third stage uses one 7-ton-class engine.
Solid-fuel space launch vehicles and satellite propulsion systems were also exhibited. Solid-fuel space launch vehicles are valued for their advantages in design, storage, immediate response, and production costs, making them a technology that accelerates private companies' participation in space business. Satellite propulsion systems, which enable satellites to move in space, use the thrust generated by gas combustion to perform functions such as attitude control and orbit adjustment.
Exhibited items also included a low Earth orbit communication satellite platform capable of implementing various satellite communication services such as space internet, Korea's first successful development of a micro SAR (Synthetic Aperture Radar) satellite weighing under 100 kg with 1-meter resolution, and the highest-resolution optical satellite among commercial satellites worldwide.
Additionally, visitors could experience a small laser weapon system known as the Korean-style Star Wars project, a defense tiltrotor vertical takeoff and landing (VTOL) aircraft utilizing civilian urban air mobility (UAM) technology, and a multipurpose unmanned vehicle operated remotely with AI (artificial intelligence) technology without a human onboard at this exhibition.
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