Heavy Caliber Ordnance Imperial Japanese Navy


Heavy Caliber Ordnance Imperial Japanese Navy

 

Japanese battleship Yamato under construction at the Kure Naval Base, Japan, September 20, 1941. The aircraft carrier Hosho is at the extreme right. The supply ship Mamiya is in the center distance.

Japanese battleship Yamato under construction at the Kure Naval Base, Japan, September 20, 1941. The aircraft carrier Hosho is at the extreme right. The supply ship Mamiya is in the middle of the photo.

 

18.1″/45 Caliber Battery

 

The main battery of the Battleships Yamato and Musashi consisted of nine 46 cm (18.1 in) 45 Caliber Type 94 naval guns. They largest caliber of naval artillery ever fitted to a warship. However, the shells were not as heavy as those fired by the British 18-inch naval guns of World War I. Each gun was 21.13 metres (69.3 ft) long, weighed 147.3 metric tons (162.4 short tons), and was capable of firing high-explosive or armor-piercing shells 42 kilometres distance.

Technical specifications of the Yamato Main Guns:

Armament:
  • (1941)
  • 9 × 46 cm Type 94 guns (3×3)
  • 12 × 15.5 cm 3rd Year Type guns (4×3)
  • 12 × 127 mm Type 89 (6×2)
  • 24 × 25 mm Type 96 AA guns (8×3)
  • 4 × 13.2 mm Type 93 (2×2)
  • (1945)
  • 9 × 46 cm Type 94 guns (3×3)
  • 6 × 15.5 cm 3rd Year Type guns (2×3)
  • 24 × 127 mm Type 89 (12×2)
  • 162 × 25 mm Type 96 AA guns
  • 4 × 13.2 mm Type 93 (2×2)

 

1:700 scale detail of the  IJN 46cm L/45 18.1 Inch Type 94 Barrel 9pc Yamato and Musashi:

 

Yamato and Musashi main battery at 1700 scale.

Yamato and Musashi main battery at 1700 scale.

16.1″/45 Caliber Battery

 

This caliber was also know as 41 cm/45 (16.1″) 3rd Year Type, 40 cm/45 (16.1″) 3rd Year Type and with the official designation: 45 caliber 3rd Year Type 40 cm Gun.These were the first large-caliber guns that were completely designed and constructed in Japan. They were mounted afloat only on the Nagato class (Nagato and Mutsu), but had been planned for use on the Kaga, Amagi and Kii classes of the early 1920s, all of which were canceled as a result of the Washington Naval Limitation Treaty.

 

Ship Class Used On Nagato, Kaga, Amagi and Kii Classes
Date Of Design 1914
Date In Service 1921
Gun Weight 100 tons (101.6 mt)
Gun Length oa 741.7 in (18.840 m)

 

Nagato at anchor, around 1924

Nagato at anchor, around 1924

 

Nagato class armament as built:

 

Armament:
  • 4 × twin 41 cm guns
  • 20 × single 14 cm guns
  • 4 × single 76 mm AA guns
  • 8 × 533 mm (21.0 in) torpedo tubes

 

 

Nagato clas armament (1944):

 

Armament:
  • 4 × twin 41 cm guns
  • 18 × single 14 cm guns
  • 4 × twin 127 mm (5 in) dual-purpose guns
  • 98 × 25 mm (1 in) AA guns

14″/45 caliber battery

 

The rest of Japanese battleships had dual turrets, including Fuso-class (2), Ise-class (2) and Kong-class (4)

The primary armament of the Kongo-class consisted of eight 45-calibre 14-inch guns, mounted in four superfiring twin-gun turrets.The turrets had an elevation capability of −5/+20 degrees except in Kongō whose turrets had a maximum elevation capability of +25 degrees. The shells could be loaded at any angle and the guns had a firing cycle of 30–40 seconds.

A 14-inch gun being installed aboard Haruna, October 1914

A 14-inch gun being installed aboard Haruna, October 1914

IJN 45cal.Type41 36cm

 


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Shares