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USS Piper

USS Piper is documented as an ships in the WAR-CL-000224 roster.

SS-409 · Balao classUnited States NavyWorld War IIVerified subject image
USS Piper (SS-409) & USS Threadfin (SS-410) double launching at Portsmouth Navy Yard, Kittery, ME; 26 June 1944.
USS Piper (SS-409) & USS Threadfin (SS-410) double launching at Portsmouth Navy Yard, Kittery, ME; 26 June 1944.Image in navsource.org · Public domainImage source
Hull / pennantSS-409
ClassBalao class
NavyUnited States Navy
CountryUnited States

What is known about this ship

USS Piper is documented as an ships in the WAR-CL-000224 roster.

Class context: Balao class

The Balao class was the most numerous U.S. submarine class of World War II and the direct wartime successor to the Gato class.

This ship is recorded as a member of Balao class. Shared design history belongs on the class page; this page concentrates on the individual hull where evidence is available.

Sources and further reading

  1. H-033-2: Red Ramage ↗Naval History and Heritage Command · accessed 2026-09-18
  2. Balao class submarines ↗uboat.net · accessed 2026-09-18
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