The Aircraft carriers Akagi and Kaga


 

The 1st Carrier Division

 

The Japanese Aircraft Carriers Akagi and Kaga defined the 1st Carrier Division and included Destroyer Division 7 : Akebono, Ushio. The 1st Carrier Division was part of the 1st Air Fleet (第一航空艦隊 Daiichi Kōkū Kantai). This unit was pioneered in the world and the primary carrier fleet of the Imperial Japanese Navy (IJN). It consisted of the largest group of naval aircraft and aircraft carriers that participated in the attack on Pearl Harbor and was the world’s largest aircraft carrier fleet. The 1st Carrier division was sunk in the battle of Midway, June 1942.

 

The Aircraft Carrier Akagi

 

In 1920, the Aircraft Carrier Akagi was laid down initially as battle cruiser. By following the Washington Naval Treaty of 1922, she was finally taken in hand for setting as an aircraft carrier in late 1923. After significant modifications, the Akagi was launched in 1925. The Akagi was finally commissioned in 1927 and carried 91 planes. Those readers that, like me, are also interested in model kits at 1/700 and/or 1/350 scales, see also the following links:

cv_hasegawa_akagi

The Akagi aircraft carrier illustrated in Hasegawa model kit box.

 

Interestingly, when it was constructed the Akagi had three aircraft flight decks and no superstructure. When the flight-deck operational techniques evolved in the 1930s, this unusual setting posed problems for effective operations. Due to this, major modifications were done from October 1935 to August 1938. As a result, the aircraft carrier Akagi was transformed into a single full-length flight deck, enlarged the hangar space, a third lift was added and a true carrier island was built on the port side of the flight deck. Moreover, antiaircraft armament was also included.

 

 

The Akagi became soon the first true fleet carrier and together with the carrier Kaga acted as a test bed for the development of Japanese naval air doctrine during 1930s. The aircraft carrier Akagi served as flagship of Carrier Division 1 and as a flagship of the First Air Fleet from April 1940 onward. The aircraft carrier Akagi joined operations in China and in every major carrier campaign during the opening months of the Pacific War. The Akagi was scuttled on 5 June 1942 during the Battle of Midway, after receiving two bomb hits that induced explosions and uncontrollable fires.

 

The Aircraft Carrier Kaga

 

Because of the limitations imposed by the Washington Naval Treaty on capital ship construction, the works on the battleship Kaga were stopped in 1922. As a consequence of the destruction of the then-building Amagi in the Tokyo earthquake of 1923, the Kaga was chosen to replace her for completion as an aircraft carrier. Modifications included revisions of the armor layout to conserve top weight. She was launched in 1925 and in 1928 was commissioned, three years later, after an extensive fitting-out period and carried 90 planes . Similarly to the carrier Akagi, the aircraft carrier Kaga had three aircraft flight decks and no superstructure as built. After only six years in service, the Kaga underwent a major refit beginning in June 1934. Her hull was lengthened, a single full-length flight deck erected, hangar spaces enlarged, a third lift added, and an island built on the starboard side of the flight deck. The carrier Kaga heavy antiaircraft armament was upgraded and light AA was also added.

CV_hasegawa_kaga

The Kaga aircraft carrier illustrated in Hasegawa model kit box.

 

The aircraft carrier Kaga participated in actions againts China and in every major battle during the opening months of the Pacific War. The aircraft carrier Kaga was sunk on 4 June 1942 during the Battle of Midway, as the result of four bomb hits producing fires and induced explosions.

 

 

 

 


▽ Imperial Japanese Navy – Nihon Kaigun

 

organization of the imperial japanese navy

Nihon Kaigun organization
The structure and history of the
Imperial Japanese Navy

 

 

aircraft carriers of the imperial japanese navy

Aircraft Carriers
The battle and light aircraft carriers
of the Imperial Japanese Navy

 

 

battleships of the Imperial Japanese Navy

Battleships
The Battleships and Battlecruisers of
the Imperial Japanese Navy

 

 

heavy cruisers of the imperial japanese navy

Heavy Cruisers
The heavy cruisers of the
Imperial Japanese Navy

 

 

light cruisers of the imperial japanese navy

Light Cruisers
The light cruisers
of the Imperial Japanese Navy

 

 

destroyers of the imperial japanese navy

Destroyers
The destroyers squadrons of the
Imperial Japanese Navy

 

 

submarines of the imperial japanese navy

Submarines
The submarines fleet
of the Imperial Japanese Navy

 

 

auxiliary ships of the imperial japanese navy

Auxiliary Ships
The training, hospital, and other
auxiliary ships in the IJN

 

 

timeline of the japanese imperial navy warships

The TimeLine of ships
The design and operations
timeline records of the IJN warships

 

 

japanese land-based air groups

Naval Air Groups
The Land-Based Japanese
Navy Air-Groups

 

 

Japanese navy landing forces

Naval Landing Forces 1928-1945
Japanese Special Naval Landing Forces (SNLF),
Landing Forces (SNLF) 海軍特別陸戦隊

 

 

japanese secret weapons and technologies

Secret Weapons of the IJN
The secret weapons and teachnologies
of the Imperial Japanese Navy

 

 

strategic plans and doctrines of the IJN

Strategic Plans of the IJN
The strategic doctrines and
plans of the IJN

▽ Simulations & Wargames

▽ World War II: Pacific Theater

 

war in the pacific: admiral edition computer game

War in the Pacific: Admiral Edition
A computer-based simulation of
the entire Pacific War with incredible detail.

 

 

Empire of the sun_2nd edition boardgame wargame

The Empire of the Sun (2nd Ed.)
An strategy boardgame for the
Pacific War with solitaire playability.

 

 

pacific war boardgame

Pacific War
A fantastic monster game for the
Pacific War with many scenarios.

 

 

pacific war 2nd edition boardgame

Pacific War (2nd Ed.)
The 2nd Edition of the masterpiece
Pacific War game is coming soon!

▽Japan’s Maritime Self-Defense Force (JMSDF)

 

organization of the JMSDF

The organization of the JMSDF
The units and structure of
the Modern Japanese Navy (JMSDF)

 

 

districts of the jmsdf

The Regional District Forces
The locations and bases of the
five regional districts of the JMSDF

 

 

DDH helicopter destroyers of the jmsdf

Helicopter Destroyers DDH
The modern helicopter destroyers
of the Japan’s Maritime Self-Defence Force

 

 

DDG Guided missile destroyer of the JMSDF

Guided Missile destroyers DDG
The advanced guided missile destroyers
of the Japan’s Maritime Self-Defence Force

 

 

DD destroyers of the JMSDF

Destroyers DD
The destroyers of the
Japan’s Maritime Self-Defence Force

 

 

Landing Tank ships of the jmsdf

Tank Landing Ships LST
The tank lading ships of the
Japan’s Maritime Self-Defence Force

 

 

submarines of the jmsdf

Submarines SS
The submarine fleet of the
Japan’s Maritime Self-Defence Force

 

 

auxiliary ships of the jmsdf

Support and Auxiliary ships
Patrol and other support ships of the
Japan’s Maritime Self-Defence Force

 

 

aviation and helicopter units of the jmsdf

The aviation of the JMSDF
Japan Maritime Self-Defense Force aircrafts
and helicopter fleet

 

 

naval landing forces of the jmsdf

Naval landing forces of the JMSDF
The naval forces for landings
of the JMSDF

 

 

new weapons of the jmsdf

Future projects of the JMSDF
New coming units and future
developments of the JMSDF

 

 

strategy of the jmsdf

The strategy of the JMSDF
The current doctrine and
strategy of the JMSDF

 

 

strategy of the jmsdf

News & manoeuvres
News and military
exercises of the JMSDF

▽ Simulations & Wargames

▽ World War II: European Theater

 

unconditional surrender

Unconditional Surrender
A boardgame with innovative mechanics
for the entire World War II in European Front.

 

 

supreme commander

The Supreme commander
A strategic game at corps/army level
for the World war II in Europe.

 

 

 


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