GUPPY modernization program
E611062
The GUPPY modernization program was a U.S. Navy initiative that extensively upgraded World War II-era submarines with improved hull streamlining, batteries, and sonar to enhance their underwater performance during the early Cold War.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy program
ⓘ
submarine modernization program ⓘ |
| alsoKnownAs | Greater Underwater Propulsion Power Program NERFINISHED ⓘ |
| appliesTo | World War II-era submarines ⓘ |
| appliesToClass |
Balao-class submarine
NERFINISHED
ⓘ
Gato-class submarine NERFINISHED ⓘ Tench-class submarine NERFINISHED ⓘ |
| basedOn | German Type XXI U-boat design concepts ⓘ |
| beneficiary | U.S. diesel-electric submarine fleet ⓘ |
| context | Cold War naval arms race ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| field |
naval engineering
ⓘ
submarine design ⓘ |
| focus | submerged operations rather than surface operations ⓘ |
| hasPart |
GUPPY I
NERFINISHED
ⓘ
GUPPY IA NERFINISHED ⓘ GUPPY II NERFINISHED ⓘ GUPPY IIA NERFINISHED ⓘ GUPPY III NERFINISHED ⓘ |
| implementedIn |
1940s
ⓘ
1950s ⓘ 1960s ⓘ |
| includesUpgrade |
hull streamlining
ⓘ
improved air conditioning and habitability ⓘ improved fire control systems ⓘ improved radar systems ⓘ improved sonar systems ⓘ increased battery capacity ⓘ modernized electronic warfare equipment ⓘ reduction of deck armament ⓘ snorkel installation ⓘ streamlined sail (conning tower) ⓘ |
| influencedBy | lessons from German U-boat operations in World War II ⓘ |
| location | United States Navy shipyards NERFINISHED ⓘ |
| operator | United States Navy ⓘ |
| purpose |
enhance underwater endurance
ⓘ
enhance underwater speed ⓘ extend service life of World War II-era submarines ⓘ improve anti-submarine warfare capabilities ⓘ improve submerged performance of submarines ⓘ |
| relatedTo |
postwar U.S. submarine force modernization
ⓘ
snorkel-equipped submarines ⓘ |
| result |
increased submerged endurance compared to original World War II configuration
ⓘ
increased submerged speed compared to original World War II configuration ⓘ reduced surface performance emphasis ⓘ |
| startTime | late 1940s ⓘ |
| status | completed program ⓘ |
| timePeriod | early Cold War ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Balao-class submarine