• Skip to main content
  • Skip to site footer
seacoasthistory-logo-official-cut

SeacoastHistory

Notes from America's Smallest Seacoast

  • Home
  • About
  • Features
  • Vintage Pics
  • As I Please
  • My Books
  • Contact
  • Home
  • About
  • Features
  • Vintage Pics
  • As I Please
  • My Books
  • Contact

L-8 Was First Portsmouth-built Submarine

Vintage Pics
Category: Vintage PicsTag: Maritime History, Portsmouth Naval Shipyard

A storied history of Piscataqua submarines begins in 1917

L-8 on the water in Kittery, ME (Copyright Portsmouth Athenaeum)

The USS L-8, seen here in Kittery, was commissioned on August 30, 1917.  L-8 was the first LAKE class submarine of its class built at the Portsmouth Naval Shipyard in Kittery. This early submarine served on the East Coast.  From the Athenaeum:

After World War I the sub operated in West Coast waters for three years, then returned East in 1922 and decommissioned in 1925. From US naval history records adds this note: “Though most sources state that L-8 was subsequently scrapped, her actual fate was more dramatic. On 26 May 1926 the submarine’s hulk was sunk as a torpedo target in tests of the newly-developed magnetic influence exploder, a highly-secret and potentially revolutionary device that, proved to be an abject failure that greatly harmed the effectiveness of submarine and destroyer forces fighting against the Japanese Navy in World War II.”  (Courtesy Portsmouth Athenaeum.) 

READER REPLY

Hi Dennis, I enjoy your pics from the Athenaeum, and especially the one about the L-8. As you probably know, although she was the first submarine contracted to the PNSY, the first government-built, she was eighth in class and the 48th sub contracted for the US Navy. The second PNSY sub was the O-1 –first of the O Class, but last to be commissioned. Keep up the interesting stuff!!. — Nate Hazen

Synthetic Aperture Sonar imagery of the USS L-8, developed using data collected using the KATFISH™ system. The submarine is largely intact and appears to be resting on its port side. Sections of the outer hull are missing, likely caused by the removal of the vessel’s propellers in the late 1980s. (Image courtesy of Kraken Robotics./Wikipedia)
Previous Post:Ax Murder Author Interviews Self
Next Post:Sailmaker Benjamin Randall Fashioned a Baptist Revival

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Sidebar

Categories

As I Please

Features

General

My Books

Vintage Pics

Please Visit Our Sponsors

Portsmouth Historical Society

Strawbery Banke Museum

Wentworth by the Sea

NH Humanities

The Music Hall

Piscataqua Savings Bank

Portsmouth Athenaeum

Seacoast Science Center

  • Home
  • About
  • Blog
  • Contact

Blog Categories

  • Features
  • Vintage Pics
  • As I Please

Privacy Policy | Terms & Conditions

Contact
Find on Facebook

Copyright © 2026 · J.Dennis Robinon/Harbortown Press · All Rights Reserved