Honolulu in Honolulu County, Hawaii — Hawaiian Island Archipelago (Pacific Ocean)
MK 14 Exercise Torpedo
Photographed by Darren Jefferson Clay, November 26, 2025
1. MK 14 Exercise Torpedo Marker
For testing and training, the explosive warhead was replaced with a liquid-filled head. At the end of a run, the liquid was expelled by pressurized air so the torpedo would surface. The head was painted orange to make it more visible during recovery.
This was the last Mk 14 fired by a U.S. Navy submarine, 45 years after it entered service. USS Barbel (SS-580) launched the torpedo on 29 August 1980 off Oahu.
Topics. This historical marker is listed in these topic lists: Military • Waterways & Vessels. A significant historical date for this entry is August 29, 1980.
Location. 21° 22.127′ N, 157° 56.322′ W. Marker is in Honolulu, Hawaii, in Honolulu County. It can be reached from Arizona Memorial Road, on the left when traveling north. Touch for map. Marker is at or near this postal address: 11 Arizona Memorial Road, Aiea HI 96701, United States of America. Touch for directions.
Regionally, this marker is on Hawaii’s Pearl Harbor and Historic West Oahu. Globally, it is in North America, Polynesia, the Pacific Ocean, North Pacific, the Pacific Rim, the Western Hemisphere, the Western World, and the Anglosphere.
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Other nearby markers. At least 8 other markers are within walking distance of this marker: Mark 14 Torpedo (here, next to this marker); A Legacy of Service (a few steps from this marker); Mark 14: Early Failures (a few steps from this marker); U.S.S. Bowfin (SS287) (a few steps from this marker); USS Parche (a few steps from this marker); USS Bowfin (SS-287) WWII Fleet Submarine (a few steps from this marker); Mark 27 Torpedo (a few steps from this marker); Battle Stations Surface! 31 July 1944 (a few steps from this marker). Touch for a list and map of all markers in Honolulu.
Photographed by Darren Jefferson Clay, November 26, 2025
2. MK 14 Exercise Torpedo Marker
Credits. This page was last revised on January 26, 2026. It was originally submitted on January 24, 2026, by Darren Jefferson Clay of Duluth, Georgia. This page has been viewed 46 times since then. Photos: 1, 2. submitted on January 24, 2026, by Darren Jefferson Clay of Duluth, Georgia. • Andrew Ruppenstein was the editor who published this page.
