Do you know which is the oldest submarine in the world? and his name

 World's oldest operational submarine, ROCS Hai Shih (SS-791), launched as USS Cutlass (SS-478) in November 1944

The ROCS Hai Shih (SS-791), formerly known as the USS Cutlass (SS-478), is truly a remarkable vessel. Launched in November 1944, it is the oldest operational submarine in the world, boasting a service history spanning nearly eight decades. Here's a glimpse into its fascinating journey:

**Origin and Early Service:

* Built in the Portsmouth Navy Yard in Kittery, Maine, USA, the Cutlass was commissioned in March 1945, towards the tail end of World War II.

[Image of USS Cutlass submarine 1945]

* Primarily used for training during the war, it saw its only wartime patrol in the Pacific Ocean in 1946.

* Post-war, the Cutlass served in the Atlantic and Pacific until its decommissioning in 1973.

**Transfer to Taiwan and Transformation:

* In 1973, the Cutlass was sold to the Republic of China Navy (ROCN) and renamed ROCS Hai Shih (SS-791), meaning "Sea Lion."

* The ROCN initially sealed the submarine's torpedo tubes due to arms control restrictions. However, they were later restored, making the Hai Shih a fully operational combat vessel.

**Modernization and Continued Service:

* Recognizing its historical significance and operational value, the ROCN undertook a major retrofit of the Hai Shih in 2017.

* The $19 million upgrade focused on improving the hull, engine, and navigation systems, extending its service life until 2026.

* Despite its age, the Hai Shih remains a capable submarine, playing a vital role in Taiwan's coastal defense.

**Legacy and Significance:

* The Hai Shih stands as a testament to the enduring legacy of World War II naval technology.

* Its continued operation highlights the value of modernization and maintenance in extending the lifespan of military equipment.

* As the world's oldest operational submarine, the Hai Shih is a unique piece of maritime history, serving as a symbol of Taiwan's naval prowess and resilience.

The ROCS Hai Shih's story is one of adaptation, resilience, and continued service. It's a fascinating example of how a vintage vessel can be modernized and remain a valuable asset for decades to come.

I hope this information provides you with a good overview of the ROCS Hai Shih. If you have any further questions, feel free to ask!