USS Becuna

USS Becuna
Země	SPOJENÉ STÁTY
Třída a typ	Dieselelektrické ponorky třídy Balao
Zahájila	30. ledna 1944
Mimo provoz	7. listopadu 1969

USS Becuna (SS/AGSS-319), ponorka třídy Balao, je bývalá loď námořnictva Spojených států pojmenovaná po becuna, štičí rybě Evropy. Byla jmenována národní historickou památkou za svou službu ve druhé světové válce, za kterou získala čtyři bojové hvězdy. V současné době slouží jako muzejní loď v Independence Seaport Museum ve Filadelfii v Pensylvánii.

Zdroj: USS Becuna na Wikipedii

USS Becuna SS-319 Walk Around
Fotograf	Bill Maloney
Lokalizace	Neznámé
Fotografie	164

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The Deep-Diving Fleet Submarine

Tá USS Becuna je Balao-class submarine, the most successful class of American submarines in World War II. Launched in 1944, the Becuna was a “fleet submarine,” designed to travel with the main battle fleet across the vast Pacific. Unlike the earlier Gato-class, the Balao-class utilized high-tensile steel (HTS), allowing it to dive to depths of 400 feet (120m), significantly safer from Japanese depth charges.

Attribute	Technical Specification (WWII Configuration)
Třída	Balao-class Diesel-Electric Submarine
Posádky	10 Officers, 70-72 Enlisted
Main Armament	10 × 21-inch (533 mm) Torpedo Tubes (6 forward, 4 aft)
Deck Gun	1 × 5-inch / 25 caliber dual-purpose gun
Pohonná jednotka	4 × Fairbanks-Morse Diesel Engines; 4 × Elliott Electric Motors
Surface Speed	20.25 knots (37.5 km/h)
Submerged Speed	8.75 knots (16 km/h)
Test Depth	400 feet (122 m)

The GUPPY Modernization

Streamlining the Hull: In 1951, the Becuna underwent a GUPPY IA (Greater Underwater Propulsive Power) conversion. This removed the deck guns and replaced the bulky WWII bridge with a streamlined “sail” to reduce underwater drag.
Snorkel System: The conversion added a “snorkel” (inspired by German technology), which allowed the submarine to run its diesel engines and recharge batteries while submerged at periscope depth.
Battery Upgrades: The internal “Sargo” batteries were replaced with much larger, high-capacity battery banks, nearly doubling the boat’s submerged endurance and speed.
Sonar Evolution: Her radar and sonar systems were upgraded throughout the 1950s and 60s, transitioning her from a surface-running raider to a true underwater Cold War interceptor.

Service and Preservation

WWII Combat: During her five war patrols, the Becuna was credited with sinking several Japanese merchant ships and tankers, totaling thousands of tons, earning two battle stars.
Cold War Role: Post-GUPPY, she operated primarily in the Atlantic and Mediterranean, tracking Soviet naval movements and participating in NATO exercises until her decommissioning in 1969.
Museum Ship: Today, the Becuna is a National Historic Landmark. She is preserved at the Independence Seaport Museum in Philadelphia, Pennsylvania, where she is moored alongside the Spanish-American War cruiser USS Olympia.