Japan modernizes the Izumo helicopter carrier into a light aircraft carrier

The Japanese Maritime Self-Defense Forces have launched the second stage of modernization of the JS Izumo helicopter carrier.

A video of the vessel’s preparation for modernization was published online.

Within the modernization, the ship entered the waters of the Japan Marine United shipbuilding company, where preparatory work will be carried out.

First, tents, construction platforms, and cranes will be installed on the ship, as the second stage of modernization is aimed at replacing the ship’s bow, similar to the one installed on the JS Kaga helicopter carrier.

In the 2024 budget, the Ministry of Defense has allocated $2.78 billion for the refurbishment, preparing the ship for full-fledged basing of F-35B fighter jets.

The modernization process includes two phases, performed during regular technical inspections every five years. The first phase, completed in June 2021, included thermal protection treatment of the flight deck, installation of light beacons, and application of yellow lines for aircraft parking.

The second phase, launched in November 2024, involves replacing the bow, arranging control rooms, and changing some interior spaces for efficient aircraft operation.

The ship is expected to be under modernization until 2026, after which tests will begin to confirm full compatibility with the F-35B, similar to those conducted with the JS Kaga.

Militarnyi previously reported that the JS Kaga helicopter carrier of the Japanese Maritime Self-Defense Forces completed integration tests with the F-35B short take-off and vertical landing fighter jet.

The tests took place near San Diego, where the JS Kaga arrived on October 5, 2024. And until October 20, it was in the process of preparing for these important tests for the Japanese Maritime Self-Defense Forces.

According to the Japanese Maritime Self-Defense Forces representatives, the first landing of the F-35B on the deck of the JS Kaga helicopter carrier took place on October 20 at about 15:00 local time. Everything went well.

Regular training of Japanese pilots on the F-35B is scheduled to begin in 2025, with takeoffs and landings from Japanese helicopter carriers as part of the regular training.

F-35B fighter jets will be based at the Nyutabaru Air Base, which is also the headquarters of the 5th Air Force. It is located in Shintomi, Miyazaki Prefecture.

In total, Japan will receive 42 F-35B aircraft, divided into four squadrons: two per helicopter carrier.