In a significant transition for its naval fleet, the Republic of Singapore Navy (RSN) has officially decommissioned its last two Challenger-class submarines, the RSS Conqueror and RSS Chieftain. This milestone comes as the RSN prepares to integrate the new Invincible-class submarines, which formally entered service in September.
The decommissioning ceremony took place at RSS Singapura – Changi Naval Base, presided over by Chief of Navy Rear Admiral Sean Wat. During the event, he also launched a new Submarine Training School, designed to enhance the training of submariners by utilizing advanced technology and simulation tools to create a safe and effective learning environment.
The Challenger-class submarines, recently retired, were originally classified as Sjoormen-class vessels from the Royal Swedish Navy. They were acquired and refurbished in the 1990s as part of Singapore’s strategic initiative to bolster its underwater warfare capabilities and develop expertise in submarine operations.
Both the RSS Conqueror and RSS Chieftain were commissioned into service on July 22, 2000, and August 24, 2002, respectively. Each submarine measures 51 meters (167 feet) in length and 6.1 meters (20 feet) in beam. They are armed with heavyweight torpedoes and have the capacity to accommodate a crew of 28 personnel.
With a displacement of 1,130 tons, these submarines were capable of cruising at a surface speed of 10 knots (approximately 11.5 miles or 18.5 kilometers per hour) and could reach a submerged speed of 16 knots (roughly 18.4 miles or 29.6 kilometers per hour).
“The achievements of RSS Conqueror and RSS Chieftain are a testament to the unwavering resolve and courage of the RSN’s pioneer submariners, who laid strong foundations for the growth of 7th Flotilla and the RSN into a world-class submarine operating force,” stated Fleet Commander RADM Kwon Hon Chung, reflecting on the legacy of the decommissioned vessels. This transition marks a new chapter in the RSN’s maritime defense capabilities, building on the hard-earned experience and resilience of its submarine forces.
