---
title: "This submarine was the first to sail around the world completely underwater"
description: "USS Triton was commissioned on November 10, 1959. At the time, it was the largest, most powerful, and most expensive submarine ever built."
date: "2022-08-19"
modified: "2022-10-06"
authors:
  - name: "Miguel Ortiz"
    job_title: "Senior Contributor, Army Veteran"
    link: "https://www.wearethemighty.com/authors/miguelortiz.md"
url: "https://www.wearethemighty.com/mighty-history/first-submarine-to-sail-around-the-world/"
categories:
  - "History"
  - "Navy"
  - "Ships"
  - "Tactical"
---

# This submarine was the first to sail around the world completely underwater

![submarine](<https://www.wearethemighty.com/wp-content/uploads/2022/08/USS-Triton-Captain-Beach-Recovery-1024x677-1.jpeg>)

Nuclear propulsion is what makes the U.S. Navy's submarine fleet so capable. Although diesel-electric submarines can run more quietly, nuclear submarines can remain submerged for far longer, only needing to surface for supplies and to swap out crews. In fact, it was thanks to nuclear propulsion that a U.S. Navy submarine became the first ship to complete a submerged circumnavigation.

![triton in the atlantic](<https://www.wearethemighty.com/wp-content/uploads/2022/08/USS-Triton.jpeg>)
**USS* Triton *underway in the Atlantic (U.S. Navy)**

[USS *Triton*](<https://en.wikipedia.org/wiki/USS_Triton_(SSRN-586)>) (SSR(N)-586) was commissioned on November 10, 1959. At the time, *Triton* was the largest, most powerful, and most expensive submarine ever built. She holds the distinction of being the only Western nuclear submarine to be equipped with two reactors. As a demonstration of her capabilities, *Triton* was given the submerged circumnavigation mission for her maiden voyage.

![map](<https://www.wearethemighty.com/wp-content/uploads/2022/08/Operation-Sandblast-Route.jpeg>)
**The route taken by* Triton *during Operation Sandblast (U.S. Navy)**

In anticipation of President Eisenhower's meeting with Soviet Premier Nikita Krushchev at the May 1960 Paris Summit, *Triton* was ordered to retrace the voyage started by Portuguese explorer Ferdinand Magellan and completed by Spanish explorer Juan Sebastián Elcano in the 16th century. While the first circumnavigation took three years, *Triton* would do it in just two months. The mission was code named Operation Sandblast.

![triton submarine captain](<https://www.wearethemighty.com/wp-content/uploads/2022/08/Captain-Edward-Beach-USS-Triton-Operation-Sandblast.jpeg>)
**Capt. Beach announces Operation Sandblast to the crew aboard USS* Triton*, Feb. 17, 1960 (U.S. Navy)**

*Triton* departed Groton, Connecticut on February 15, 1960 under the command of Capt. Edward L. Beach. A veteran of 12 WWII combat patrols, the Battle of Midway, and a recipient of the Navy Cross, there was no better sub captain to command *Triton* on her historic voyage. The ship reached the starting point, in the Middle Atlantic off St. Peter and St. Paul Rocks, on February 24. *Triton* submerged and began her underwater circumnavigation.

![triton submarine periscope](<https://www.wearethemighty.com/wp-content/uploads/2022/08/St-Peter-and-Paul-Rocks.jpeg>)
**St. Peter and St. Paul Rocks as seen through* Triton*'s periscope, Feb. 24, 1960 (U.S. Navy)**

Continuing south, *Triton* rounded Cape Horn at the bottom end of South America and proceeded west across the vast Pacific Ocean. Remaining submerged, she passed through the Philippine and Indonesian islands before crossing the Indian Ocean. *Triton* continued southwest towards the South African coast, rounded the Cape of Good Hope, and resurfaced off St. Peter and St. Paul Rocks on April 25, 1960. Her historic voyage took 60 days and 21 hours.

![triton submarine near delaware](<https://www.wearethemighty.com/wp-content/uploads/2022/08/USS-Triton-Captain-Beach-Recovery.jpeg>)
**A helicopter approaches* Triton *off the coast of Delaware to bring Capt. Beach to the White House, May 10, 1960 (U.S. Navy)**

Operation Sandblast was a huge victory for the United States and the nuclear powered Navy. Unfortunately, the crew's celebration was cut short by the shoot down of a U-2 spy plane over the Soviet Union and the capture of Francis Gary Powers on May 1. Still, Capt. Beach was flown to the White House to receive the [Legion of Merit](<https://www.wearethemighty.com/lists/american-vets-france-legion-honor.md>) from the President and the *Triton*'s crew received the Presidential Unit Citation. To further recognize their accomplishment, the award was embellished with a special gold clasp in the shape of a globe.

## Author
Miguel Ortiz is a Senior Contributor for We Are The Mighty covering primarily military news and history with an emphasis on weapons technology. He is a former active duty Army officer and remains a member of the Army IRR. After commissioning through San Diego State University Army ROTC, Miguel served with the 10th Mountain Division at Fort Drum, NY. He has written for We Are The Mighty since 2020, drawing from his passion for the military community and history. Miguel’s work has also been seen on Business Insider and The Blast. He remains an avid shooter, competing in local USPSA matches. Miguel’s other hobbies are traveling and watch collecting.

### Author social links  
[LinkedIn](<https://www.linkedin.com/in/miguel-ortiz1495>)