Greater Underwater Propulsion Power Program

E1644482 UNEXPLORED

The Greater Underwater Propulsion Power Program (GUPPY) was a U.S. Navy initiative after World War II to upgrade existing submarines for improved underwater speed, endurance, and stealth, inspired by German Type XXI U-boat technology.

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Label	Occurrences
Greater Underwater Propulsion Power Program canonical	1

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

GUPPY modernization program → alsoKnownAs → Greater Underwater Propulsion Power Program ⓘ