SEOUL, Nov 10 (AFP) - The second prototype of South Korea's homegrown fighter jet, the KF-21 Boramae, made a successful maiden test flight Thursday, Yonhap reported on Thursday, citing the country's arms agency.

It took off from the Air Force's 3rd Flying Training Wing in Sacheon, about 300 kilometers south of Seoul, at 9:49 a.m. and landed without a hitch at 10:24 a.m., according to the Defense Acquisition Program Administration (DAPA).

It flew at an average speed of 407 kph during the 35-minute flight near the headquarters of its developer, the Korean Aerospace Industries (KAI), a source said later.

The first prototype of the 4.5th-generation fighter succeeded in its maiden flight on July 19.

KAI plans to produce four more prototypes that will make test flights in stages from December 2022 till the first half of 2023, DAPA said.

Launched in 2015, the 8.8 trillion-won (US$6.4 billion) KF-21 project is aimed at developing a supersonic fighter model to replace South Korea's aging fleet of F-4 and F-5 jets.

The country's military plans to deploy 120 KF-21 aircraft by 2032.