The MCH-101 is a naval variant of the AgustaWestland AW101 helicopter, operated by the Japan Maritime Self-Defense Force (JMSDF) and has been in service with the JMSDF since the mid-2000s, primarily for mine countermeasure (MCM) operations and transport missions. It was developed from the AgustaWestland AW101 to replace aging MCM helicopters and enhance Japan’s naval mine warfare capabilities.
Japan selected the AW101 as the base platform for its new MCM helicopter in the early 2000s. The first MCH-101 was delivered in 2006, and operational deployment followed after testing and integration of mine countermeasure systems. The Kawasaki Heavy Industries (KHI) built the MCH-101 under license from AgustaWestland, adapting it to JMSDF requirements.
The MCH-101 is used to detect, classify, and neutralize underwater mines in Japan’s coastal waters and key sea lanes. Equipped with the AN/AQS-24A airborne mine detection system and the AN/ALQ-220 Organic Airborne Influence Sweep (OAIS), it can operate remotely to sweep mines safely. It supports JMSDF’s minesweeper vessels and is crucial in securing Japanese maritime routes.
Apart from MCM roles, the MCH-101 is also used for logistics and personnel transport. A transport variant, the CH-101, is used for missions including Antarctic research support, operating from Japan’s icebreaker Shirase.
