Thursday, 5 November 2020

Warding Sea Monsters And Demons : Japan's Sacred Silver Ship Launching Axe 破邪.魔除け.日本国神を祀る銀の進水斧

 

Ceremonial Axe used for launching Aegis destroyer 
DDG-179 JS Maya. Photo  JMSDF


While researching on Japan's new Taigei-class submarine recently, I came across photographs and videos of the ship naming and launching ceremony featuring the guest of honour, Defense Minister Nobuo Kishi, wielding an exquisitely decorated axe for cord cutting. That certainly piqued my interest as the use of this ceremonial axe seems to be common in many Japanese ship launching events involving both warships and merchant vessels. It also appears to be a uniquely Japanese custom as most shipbuilders elsewhere in the world would use mallets, gavels or scissors for cord or ribbon cutting. And by the way, did I mention that they are all made of silver and have special engravings for protection against evil spirits?

In this article we explore the traditions of Japanese ship naming and launching ceremony and the origins of this silver ship launching axe.


Ceremonial Ship Launching


Ceremonial ship launching is a maritime tradition that that dates back thousands of years. It is an important milestone in shipbuilding and marks the first time that the vessel is transferred into water. It is frequently observed as a public celebration and will also be a time to call for solemn blessings through religious rites or other appropriate processes for the safety and good fortune of the new vessel, its crew and its passengers. 

As one would expect, different cultures would have evolved different methodology for their naming and launching traditions which can change with the passage of time. The Babylonians had been known to sacrifice oxen while the Vikings sacrificed slaves for blood offerings to their sea gods during the launch of their new ships. Fortunately, these barbaric customs were no longer practiced by medieval times as wine had largely substituted blood as an offering during such ceremonies. 

Since the Europeans were a global maritime power and were at the forefront of the shipbuilding industry at least until the turn of the twentieth century, it is probably safe to say that most contemporary ship launching ceremonies would be based either in part or wholly on the Western customs and traditions. It would typically involve a mass celebration where the ship sponsor, usually a female civilian, would have the honour of releasing the ship into water. She would be standing on a platform built around the bow of the ship as it rest on the slipway and at the time of choosing, she would break a bottle of wine or champagne over the bow, wish the vessel and all those who would sail in it good luck, and operate the mechanism that would slide the vessel into the water.   

During the Meiji Restoration beginning from 1868, Japan embarked on rapid industrialization and militarization by assimilating the wisdom and technology of the western powers and adapting them as necessary. Technical advisors from Europe were hired to teach the Japanese the most advanced western thinking and practices while Japanese students were sent abroad to study in the most prestigious continental universities. British naval officers were seconded to help train and indoctrinate Japanese sailors. Many of the Imperial Japanese Navy's early pre-dreadnaught battleships including the famed Mikasa were constructed by European yards, until the Japanese managed to acquire the knowledge and expertise to construct these capital ships themselves from the subsequent Taisho era onwards. So there had been plenty of opportunity for western influence in maritime customs and traditions within the fledgling Japanese navy and shipbuilding industry at the turn of the 20th century. 

Currently, Japanese ship naming and launching procedures largely mirror those of the western cultures with minor variations, like the use of the silver cord cutting axe. The ship launching ceremony is known as 進水式 ( shinsuishiki ) while the christening ceremony is known as 命名式 ( meimeishiki ). The special axe is referred to as the 進水斧 ( shinsuifu ). 



                                                Ship naming and launching ceremony of destroyer JS Shiranui 



Japanese Shipbuilding Industry


Japan did not have any modern form of ship building capacity until the second half of the 19th century for one important reason. For more than 200 years, the isolationist foreign policy ( 鎖国 sakoku - locked state ) of the Tokugawa Shogunate that ruled over feudal Japan prohibited the construction and possession of large ocean-going ships. Enacted in 1635, the large ship construction ban ( 大船建造の禁 ) would outlaw the building of ships larger than 500 koku ( 75 tonnes ) with the exception of commercial vessels. As a result, the most common Japanese vessels of that era are the small single mast coastal boats known as bezaisen ( 弁才船 ) or sengokubune ( 千石船 ).


Japan Post 1975 Ship Series : Sengokubune ( left ) and
frigate Shoheimaru

These restrictive legislation were only revoked after the gunboat diplomacy of Commodore Perry's Black Ship Expedition in 1853 shocked the shogunate to open up the country to trade and to aspire to build a modern navy to avoid being colonized by western powers. Within a few years, iron foundries, dockyards, a ship engine repair facility and a naval training institute were set up and the various samurai domains were encouraged by the shogunate to built western-style warships. Initially through trial and error, experimentation, and later by the direct importation of western technology, Japan progressed to full-blown industrialization through its gradual build-up of domestic expertise and continued adoption and adaptation of western technology.


Slipway Launching And Associated Tools


One of the first few western style ships built by Japan after the ship construction ban was abolished was the schooner Heda ( 戸田号 ) in 1855. It was built for the Russian admiral and diplomat Yevfimiy Putyatin as an urgent replacement for his frigate Diana which was sunk by a tsunami triggered by the Ansei-Tokai earthquake. With a length of 24m and displacing 100 tons, it was launched via a western type wooden slipway, a first for Japan. 


Launch ceremony of the schooner Heda 7th Mar 1855
on western style wooden slipway. Image : Wikipedia.


Thereafter, the slipway gradually became the method of choice for launching large ships in Japan. By 1872, the Yokosuka Shipyards had even constructed rails for launching large vessels. The slipway stern-first ship launching method would invariably require some holding and releasing device known as launching triggers, to prevent the unintended release of the ship until the desired moment. The release of these triggers frequent involved severing of cords or rope with cutting tools such as a mallet and chisel combination which was commonly used in 19th century Europe. 


Gavel and chisel used for launching the royal yacht
HMY Victoria and Albert in 1855.
Image : National Maritime Museum


According to Kakizaki Sadao, a member of the Japan Society of Naval Architects and Ocean Engineers, in Japan, it was at Yokosuka where cord or rope cutting during ship launching ceremony was first recorded. This occurred in 1885 at the launch ceremony of the Imperial Navy sloop Katsuragi ( 葛城 ) but the type of cutting tool involved was not specified. Many more ships including the corvette Musashi ( 武蔵 ) launched the following year and the gunboat Chokai ( 鳥海 ), launched in 1887 at the Ishikawajima-Hirano Shipyard, would be put to sea in this way, involving rope cutting and sliding down slipways. 

Subsequently, there were records of axe usage during the launch of the protected cruisers Hashidate in 1891 and Akitsushima in 1892 but they prove difficult to verify and it is believed that the usual mallet and chisel were used. 

By the beginning of the 20th century, the tonnage of Japanese constructed vessels had began to increase exponentially and consequently the size of the cables and ropes used during construction and launch had also increased. Cutting them became difficult with the usual small blades and shears and that eventually lead to the introduction of guillotine mechanisms and axes for more efficient cutting.  


Cultural Significance Of The Axe


In ancient China, the broadaxe had always been held as a symbol of imperial authority and were presented to high ranking officials and military commanders to bestow upon them power and status. It is sometimes depicted on coat-of-arms and other forms of heraldry. 

In Japan, the axe has been used in Shinto rituals such as during the periodic reconstruction of its most sacred Ise Grand Shrine. The Naiku or inner shine is constructed from Japanese cypress and two giant cypress trees had to be fell with axes using an ancient method which involved cutting the trunk from 3 sides. The blades are grooved with 3 streaks on the left face and 4 on the other side representing several Japanese deities believed to protect the bearer from evil spirits especially when working in remote mountainous areas. The axes used for cutting these sacred trees ( 御神木 oshinboku ) as well as many ordinary forestry worker's axes are frequently seen shrouded with a braided hemp cover to protect the cutting edge when not in use. 


Lumberjack's broadaxe with 4 grooves on the right side.
Image : Forest Research and Management Organisation Japan



JS Izumo's axe with 3 grooves on the left side. Photo : JMSDF



Origins of the Silver Ship Launching Axe


The modern Japanese ship launching axe could have its origins traced back to 1907, the 40th year of the Meiji Era, where Koyama Kichiro ( 小山吉郎 ) the chief of the ship building department of the Sasebo Naval Arsenal ( 佐世保海軍工廠 ) proposed the use of an axe for the launching of the cruiser Tone. The ceremony was attended by the crown prince. Like many existing Japanese axes, his proposed ship launching axe would also have grooves carved into the blade face itself in the usual pattern, 3 on the left and 4 on the right. As mention earlier the grooves represent the various Japanese gods and when used during the ceremonial launching were supposed to confer divine protection to the ship and all those onboard. Silver or gold is used in making the axe as these precious metals are believed to have special warding effects against demons and evil things. 

The use of these ship launching axes were not officially sanctioned by the Imperial Japanese Navy and their usage was dependent on the decision of the director of each individual shipyard. In 1909 when a young engineer officer known as Nagamura Kiyoshi ( 永村清 ) was transferred from Sasebo to the Kure Naval Arsenal, he brought with him the launching axe culture. 

At Kure, the first recorded use of the axe was at the launching ceremony of the dreadnought Settsu ( 攝津 ) in 1911. For the next several years the shipyard would support the use of both the axe as well as the traditional mallet and chisel. The launch of Submarine Number 23 ( later renamed Ro-13 ) in 1919 for example still involved using the mallet and chisel which is known as tsuchi to nomi ( 槌とのみ ) in Japanese. In had been estimated that it took 15 years before the use of the ship launching axe became regular and exclusive at the Kure Naval Arsenal, permanently replacing the mallet and chisel. 

Further west at the Yokosuka Naval Arsenal, it is not clear when the usage of the launching axe had began but textbooks describing the launch of the battleship Mutsu in 1920 still mentioned about mallet and chisel. However, the launch of the cruiser Myoko in 1927 was said to involve the use of a broadaxe ( 鉞 masakari ). Coincidentally, that was also the year that Nagamura Kiyoshi, by then a rear admiral, was transferred from Kure to Yokosuka. It might have been easy to postulate that he had popularised ritual axe usage as a result of his transfers among the various naval yards. In any case, it probably took more then 20 years for the culture of the ship launching axe to be entrenched within the naval ship building community. From then onwards, the launching of government vessels and subsequently most civilian ships would have featured the ship launching axe.


Launching axe of mine sweeper MSO-306 JS Etajima. Photo : JMSDF


Evolution And Variations


The early pre-WWII ship launching axe is usually of simple design without much fanfare comprising of a metal blade attached to a wooden handle. The name of the ship and details such as the date and location of the launching ceremony, sponsor or the guest-of-honour, are usually printed or engraved on the handle. They are rarely adorned with any precious stones or expensive jewelry. Several examples have survived and are found in the private museum collections of shipyards as well as naval and maritime museums like the Kure Maritime Museum a.k.a. Yamato Museum.

Contemporary ship lunching axes can have more elaborate designs and may have the ends of the wooden handles wrapped with metal or may even feature an all-metal handle. They can also have ribbons or tassels attached. Some may also come in a set which includes a matching mallet for striking the axe. They may also sometimes come in a pair of two axes for two guests to concurrently perform the act of cord cutting. This occurred during the launch of the helicopter carrier JS Izumo

In a survey of 60 post-war ship launching axes, Kakizaki Sadao discovered that the lengths varied between 191mm to 386mm while the weights were between 305g to 1233g. The cost of material alone can be considerable if the blades were to be entirely forged with silver!



Launching axe of DD-120 JS Shiranui ( 不知火 ). Photo : JMSDF



Launching axe of SS-512 JS Toryu next to the cutting block and cord
Photo : JMSDF


Mallet and axe set for AOS-5203 JS Aki. Photo JMSDF



Double axe during the launch of DDH-183 JS Izumo. Photo : JMSDF



Simultaneous cord cutting during the launch of JS Izumo. Photo : JMSDF



Launching ceremony of Aegis destroyer DDG-180 JS Haguro
Photo : JMSDF



The cutting block with remnants of the cord during
the launch of JS Haguro. Photo : JMSDF


The Sacred Blade


The main distinguishing feature between a normal utilitarian axe and a sacred Japanese axe are the presence of grooves on both sides of the blade representing the highest ranking Japanese deities. The three grooves on the left symbolise the Shinto creator gods Izanagi, his wife Izanami and their daughter the sun goddess Amaterasu. The four grooves on the right represent the Four Heavenly Kings, Tamon-ten, Zocho-ten, Jikoku-ten and Komoku-ten, Buddhist gods that are believed to be watching the four cardinal directions of the world. Shintoism and Buddhism are the two most common religion in Japan and by including deities from both faiths on the axe blade, the Japanese seem to have all their bases covered. 

In Japanese mythology, Izanagi ( 伊邪那岐 ) and his twin sister-wife Izanami ( 伊邪那美 ) were the last of the seven generations of primordial deities that manifested after the creation of heaven and earth. Upon receiving orders to from the other gods to shape the earth which was then a formless swirl of aquatic chaos, the couple churned the waters with the jeweled spear Amenonuhoko and the brine that dripped from the tip of the spear formed island Onogoro-shima. They settled on the new land mass and their union lead to not only the birth of the eight islands of the Japanese archipelago but also to more deities to inhabit these islands. 


Izanagi and Izanami with jeweled spear
Image : Wikipedia

Unfortunately, Izanami died after giving birth to the fire god Kagutsuchi. Wishing to see his wife again, Izanagi ventured to Yomi no kuni ( 黄泉の国 ), the land of the dead, but was informed by Izanami that she had already consumed food from Yomi and could no longer return to the land of the living. Breaking his promise not to look at her, Izanagi lighted a torch while Izanami was asleep and was shocked to find her in a horrible state of decay. Terrified, he fled, chased by his indignant wife and the minions that she had unleashed after him. Izanagi barely made it to the boundary between the living and the dead and sealed the entrance to Yomi with a large boulder. Feeling contaminated by his visit to Yomi he then purified himself by bathing in a river from which more deities came into being - the sun goddess Amaterasu-Omikami ( 天照大御神 ) when he washed his left eye, the moon goddess Tsukuyomi when he washed his right eye and the impetuous god Susanoo when he washed his nose. Collectively they are referred to as " The Three Precious Children " of the creator god Izanagi.


Sun goddess Amaterasu. Image : Ise Grand Shrine

Amaterasu the sun goddess is also the ruler of Takamagahara, the abode of the heavenly gods and the mythical ancestor of the Japanese imperial house via her grandson Ninigi, who is said to be the great-grandfather of Japan's fist emperor, Emperor Jimmu. Her main place of worship is the Grand Shine of Ise at Ise, Mie Prefecture, the holiest of all Shinto sites.       

The Four Heavenly Kings ( 四天王 shitenno ) are benevolent Buddhist gods that watch over much of the world bringing peace, prosperity, and protection from evil. They are frequently depicted as fierce-looking red or green faced towering figures dressed in a full suite of armour and they each have their own preferred weapon.


Tamon-ten Statue at the Rengein Tanjoji Temple,
Kumamoto. Image : Wikipedia

Tamon-ten ( 多聞天 ) is the chief of the Heavenly Kings and the protector of the north. He is also the guardian of the place that Buddha preaches. He is frequently seen carrying an umbrella or sometimes a spear in one hand and a small pagoda in the other. The pagoda represents the divine treasure house whose content Tamon-ten both guards and gives away. In Japanese folklore he is one of the Seven Gods of Fortune ( 七福神 shichifukujin ).


Zocho-ten statue at the Rengein Tanjoji Temple,
Kumamoto. Image : Wikipedia


Zocho-ten ( 増長天 ) - he who causes growth, is the protector of the south and is frequently depicted as a blue-faced warrior general carrying a sword or a spear trampling over an evil spirit known as a jaki ( 邪鬼 ). He is the defender of the Buddhist Dharma and will guard Buddhist followers from dangers and enemies.


Jikoku-ten statue at the Rengein Tanjoji Temple,
Kumamoto. Image : Wikipedia


Jikoku-ten ( 持国天 ) - he who upholds the realm, is the protector of the east and is sometimes seen carrying a Japanese lute which is also known as the biwa ( 琵琶 ). Otherwise he might be holding a sword and also stepping over a cowering jaki. He is harmonious and compassionate and protects all beings. He is also the god of music and uses his tunes to convert others to Buddhism. 


Komoku-ten statue at the Rengein Tanjoji Temple,
Kumamoto. Image : Wikipedia


Komoku-ten ( 広目天 ) - he who sees all, is the protector of the west. He has a divine eye which allows him to identify non-believers and will convert them to Buddhism. He is frequently seen holding a serpent or a cord which symbolises the dragon. He is the lord of all dragons.

With such powerful deities onboard, what's there to be afraid of? Still plenty, as it turns out.


Sea Monsters And Boat Spirits


Japan is a nation mostly covered with high mountain ranges, with dense forests inhabited by dangerous creatures. The archipelago is surrounded by treacherous waters and its people have to constantly deal with natural disasters like typhoons, earthquakes and volcanic eruptions. It is therefore not surprising that in attempts to explain some of these incomprehensible natural phenomenon, Japanese folklore is full of stories about ghosts ( 鬼 Oni ), spirits ( 幽霊 Yurei ) and monsters ( 妖怪 Yokai ). Here are just a small selection of supernatural beings that Japanese mariners fear.


The Umibozu or sea priest. Wikipedia

The Umibozu ( 海坊主 ) or sea priest is a sea spirit that can suddenly appear on calm seas which will then turn tumultuous. They have eyes and take the form a black mass which resembles the bald head of the Japanese monk. The Umibozu's length can vary between few meters to few tens of meters and so can be quite gigantic. It can either break a ship upon emergence or else would demand a bucket or barrel from sailors and then proceed to drown them. It is believed that the only safe way to evade the Umibozu is to give it a bottomless barrel and sail away while it is confused.


Funayurei with hishaku or ladle. Wikipedia

The Funayurei ( 船幽霊 ) or ship spirit are vengeful ghosts believed to be the souls of people who have died in shipwrecks. They use hishaku ( bamboo spoon or ladle ) to fill boats with water and sink them or else will drag people underwater to drown them. They often appear on rainy days, during new moon or full moon and on stormy nights and foggy nights. Rising from the depths of the sea clad in white kimono-like attire and with their long hair trailing in the water, these spirits will always demand a hishaku from the sailors. If the demand is complied with, a single hishaku will in an instant turn into a countless number of hishakus which the Funayurei will use to swamp the boat with water and drown all the sailors. It is said that a wise captain always carries a ladle with holes drilled at the bottom when sailing in Funayurei infested waters. Giving the spirits this leaking spoon will render one's ship immune from sinking.


Kaika or ghostly lights. Wikipedia

The Ayakashi ( アヤカシ ) is a general term for various yokai that appear on the surface of the water. One particular legend originating from Tsushima Island, Nagasaki Prefecture, relates to the Ayakashi no Kaika ( 怪火 ), literally meaning strange fire or ghostly lights. These luminous apparitions frequently appear on beaches in the evening and looks as if a child is running around within the flame. They can also appear as floating fires on the water surface and can suddenly transform into massive boulders or land masses in an attempt to panic the ship into changing course and then run aground on a reef or sink. No harm will come to the ship or crew if the captain stays calm enough to call the Kaika's bluff and hold the ship's course.  

If you wish to learn more about Japanese yokai and yurei, a good place to start would be Mizuki Shigeru's manga series GeGeGe no Kitaro ( げげげの鬼太郎 ) or Kitaro of the Graveyard. The anime series Demon Slayer : Kimetsu no Yaiba ( 鬼滅の刃 ) is also highly recommended. Its movie offshoot - the Mugen Train was the fastest movie to rake in 10 billion yen in the Japanese box-office in Oct 2020.  


Intangible Cultural Heritage


With such imaginative and colourful folklore about supernatural beings, its no wonder the Japanese mariners needed to call upon their highest deities for protection. The use of the ship launching axe is a cultural phenomenon that had began within the defense community but had subsequently been widely adopted even by the civilian ship builders within just a few decades. It is not found anywhere else and is entirely unique to Japan. With such deep religious, cultural and historical background, Japan's sacred ship launching axe should be deemed an intangible cultural heritage. I would wholeheartedly support its nomination to the UNESCO's Representative List of the Intangible Cultural Heritage of Humanity

Lastly, it would not seem appropriate to end without mentioning a little more about Koyama Kichiro, the proponent of the ship launching axe. 

Koyama was born on 1 Mar 1860 in Nagaoka, Niigata Prefecture. He graduated from the Engineering Institute, University of Tokyo in 1883 and started work at Ishikawajima Ship Building as a drafter. He was employed by the Imperial Japanese Navy in 1884 and was posted to Onohama Ship Building with the rank of Assistant Engineer 1. 

By 1887 he was chief of the drafting section and was made a lieutenant ( technical ) in 1888. He was transferred to Kure Naval Arsenal in 1890 and remained there until his sabbatical to Germany in 1896. He was promoted in rank to Commander ( constructor ) before his recall back to Japan in 1900. He then joined the Yokosuka Naval Arsenal as the acting chief of shipbuilding. He would be promoted to Captain ( constructor ) in 1902. 

From 1903 to 1908, Koyama was the Chief of the Shipbuilding Department at Sasebo Naval Arsenal where he came up with the idea of the ship launching axe. After that, he was transferred to Maizuru Naval Yard where he would stay until 1911. During this period he was conferred the title of Constructor General. He was back at Yokosuka from 1911 to 1913 after which he was put to the reserves. 

He obtained a doctorate in engineering in 1915 and was promoted in rank to rear-admiral ( constructor ) in 1919. He retired in 1923 and died on 25th Feb 1929 age 68 years old. 

That's all for now and we'll have more about Japan's ship launching ceremony and the " Warship March " in the next article.



 

 















   






Thursday, 22 October 2020

Taigei : Japan's Super-Duper Next Generation Big Whale-Class Submarine

 

Launch of JS Taigei ( SS-513 ) at Mitsubishi Heavy Industries'
Kobe Shipyard 14th Oct 2020. Photo : JMSDF

The Japanese Maritime Self Defense Force ( JMSDF ) had just revealed the name of its next generation attack submarine during its launch on 14th Oct 2020. It is known as the Taigei ( たいげい, 大鯨 ), meaning " big whale ". Post-World War II Japanese submarines had a tradition of being named after marine phenomenon or auspicious creatures, be it real or mythical. So while the previous generations of Japan's hunter-killer submarine ( SSK ) classes had been named after tides and dragons, this time though it might just be named after whales.   

The naming of warships, especially the first in a series, can be very important as this will generally also be adopted as the name of the class. The Japanese knew this well enough to even refer to the lead ship of a class as the name ship ( ネームシップ  nemu shippu). The name of the first-in-class also usually sets the tone and direction for the names of the subsequent vessels that would follow in the series. 


Kujira!

In Japanese, the kanji character for whale is 鯨. On its own, this is usually pronounced as kujira ( Kun-reading ) but when combined as a word with another kanji character it is usually read as gei ( On-reading ). 


Ukiyo-e painting by Hokusai of the appearance of a gigantic whale
in the Goto Islands of Nagasaki Prefecture circa 1830. Wikipedia  

Whales and dolphins have an important place in the culture of Japan's indigenous Ainu people. They have lived with and hunted these marine creatures for sustenance as far back as time immemorial and there are folklore and festivals to celebrate their special relationship with these animals. In other parts of Japan especially around the Kii Peninsular of Honshu, coastal fishermen have been whaling with traditional methods for several centuries. Large scale commercial whaling with modern pelagic fleets only began about a hundred years ago during the Meiji era and intensified after World War II when Japan faced an acute shortage of food to feed its people. Whale meat then became a major source of protein for many Japanese in post-war Japan. However, as their country became more affluent, the Japanese could afford to import beef, pork and other meats such that whale meat consumption is now uncommon. That's not surprising at all because whale meat is tough and not as palatable as beef. Wagyu or Japanese beef taste a million times better than whale meat, or any meat for that matter.  


Annual Whale Festival at Toba City, Mie Prefecture.
Photo : Mainichi Shimbun

As centuries of over exploitation has drastically reduced the whale population globally, the International Whaling Commission adopted a moratorium on commercial whaling in 1982. Japan is one of the handful of member nations that defied the moratorium and continued with large scale whale hunting, purportedly for scientific research. After decades of unsuccessful lobbying for the ban to be lifted, Japan eventually withdrew its IWC membership in 2018. Japan's insistence on commercial whaling which required millions of dollars of government subsidy annually might be the result of lobbying by powerful political groups with vested interests. It has alienated Japan with many anti-whaling nations including Australia, who vehemently opposed Japanese whaling activities in the southern oceans. Hopefully this senseless culling will stop in the near future.

On a lighter note, whales of various types are also featured in many Japanese manga and anime including Children of the Sea ( trailer below ), Tico of the Seven Seas and my favourite, Children of the Whale ( Kujira no Kora wa Sajo ni Utau クジラの子らは砂上に歌う ).


                                                                                      Children of the Sea Trailer                                                               

                                                                             

    

Submarine Names


While the navies of the world had been deploying surface vessels for centuries, the history of modern submarines only went back about a hundred years. Especially in the early years, submarines do not bear traditional names like their surface counterparts did but instead were assigned alphanumeric characters like U-47 or I-400. This was because the early submarines were generally of lower tonnage and were only considered as boats, and navies by tradition do not name small crafts and boats. 

Even has the design and function of submarines grew increasingly complex and with their tonnage possibly exceeding those of their surface counterparts, they were still called boats, again by tradition. The only thing that has changed in recent years especially post-WWII is nowadays almost all the world's submarines are named.

JMSDF's long standing tradition of naming its submarines after oceanic currents is very apt since they are vessels of the deep and are supposed to ride the currents to strike with precision. Being an island nation surrounded by the oceans, the various currents flowing around the Japanese archipelago would be of significance as they will have a huge impact on the climate and the way of life for the people. However, after decades of naming them after currents, there are now many Japanese boats of different generations bearing the same name like Kuroshio ( 3 ), Harushio ( 2 ) and Oyashio ( 2 ). This creates confusion especially when the JMSDF historically retires its submarines after only about twenty years in service and boats of two different generations with very similar sounding names are concurrently in active service. 

The arrival of the Soryu-class SSK changed this long standing habit with the entire class named after dragons. If anything, this allows for the instant distinction of submarine class and capability just from the name alone, well mostly, if you disregard the fact the the last two boats of the Soryu-class are actually powered by lithium batteries instead of the usual lead-acid accumulators combined with air-independent propulsion technology found in the rest of the class. Naming submarines after dragons are also apt as dragons, at least in East Asian culture, are powerful mythical creatures of the sea that even have the ability to unleash storms of unimaginable ferocity. 

With the completion of the 12 boat Soryu-class submarines, it is now evident that the JMSDF is naming the lead boat of the new class after a whale. That itself does not guarantee that the subsequent vessels will also bear names of whales. For all we know it might be a marine mammal series - sea lion, seal, walrus, dolphin, or a even possibly fish series. However, based on the naming pattern observed since 1955 and the fact that the Japanese love conformity and order, I would hazard a guess that the rest of the series will also be named after whales.  


Naming Submarines After Whales

  

The naming of submarines after whales ( and dolphins ) is not entirely novel as proven by the numerous US Navy submarines that bear such names : Finback, Narwhale, Porpoise, Grampus ( Risso's dolphin ), Whale, Dolphin and Cachalot ( sperm whale ). In the JMSDF though, that would be a first. Even more than ocean currents and dragons, whales share many characteristics with modern submarines and to name them after whales are definitely appropriate.

For instance, both are deep diving, air breathing, fearless hunters of the oceans. Most importantly the use of sound waves in echo-location for navigation, locating prey and even performing an acoustic attack to disorientate the prey are tactics common to both toothed whales, dolphins and the modern sonar-equipped submarine. 

In fact, the Japanese have nicknamed the JS Akishio, a decommissioned Yushio-class submarine which is currently on display at the JMSDF Kure Museum, as the Iron Whale ( 鉄のくじら tetsu no kujira ) and the museum itself, Museum of the Iron Whale.


The Iron Whale JS Akishio at the JMSDF Kure Museum
Photo : Wikipedia



IJN Ships Named After Whales


While the JMSDF never had a vessel named after whales until now, its predecessor the Imperial Japanese Navy ( IJN ) had the history of naming 3 of its submarine tenders after whales. They were chronologically the Jingei ( 迅鯨 swift whale ), Chogei ( 長鯨 long whale ) and the Taigei ( 大鯨 big whale ). 


Submarine Tender IJN Jingei. Image : Pit Road


The IJN Jingei and IJN Chogei were sister ships that were the Imperial Navy's first purpose built submarine tenders. Launched in 1923 and 1924 respectively and with a standard displacement of 5160 long ton, the Jingei-class submarine tender were designed to perform multiple roles such as being the submarine division commander's flagship with the ability to resupply and support the communications and command and control for a division of 9 medium type submarines. They could also provide for crew accommodation, perform simple repairs and carry out torpedo maintenance works. They were armed with 4 x 140mm naval guns and 2 x 76mm anti-aircraft guns and a myriad of 25mm autocannons and 13mm machine guns. After 1930 they were even equipped with a float plane. 

Despite this seemingly impressive list of armament and capabilities, due to speed and size limitations, the Jingei-class tenders were unable to support the IJN's largest fleet submarines. They were largely obsolete by the time WWII commenced and were superseded by the IJN Taigei.


Submarine Tender IJN Taigei. Image : Aoshima


Launched in 1933 under the restrictions of the Washington Naval Treaty, the IJN Taigei was constructed as a large submarine tender with provisions for later conversion into an aircraft carrier. It was designed to support a division of the largest Japanese fleet submarines. Although it was the first major Japanese ship to be constructed using electric arc welding which was then considered innovative, lack of familiarity with the technique lead to weak welds, a warped hull and the appearance of many cracks later. The ship also suffered from poor stability because of some inherent flaws with the basic hull design resulting from an unfortunate combination of a high freeboard with a shallow draught. Its diesel engines also proved problematic, churning out only half the expected output. Damage from a typhoon shortly after completion in 1934 further delayed its integration into the fleet which eventually occurred in 1938. 

Works to convert the IJN Taigei to a light aircraft carrier commenced in Dec 1941 in Yokosuka and was originally scheduled to be completed in 3 months. It involved the installation of a 185m flight deck and the replacement of the problematic diesel engines with steam turbines. However, numerous problems and issues including bomb damage from the Doolittle air raid on Tokyo delayed the completion until November 1942. The vessel was then renamed the IJN Ryuho ( 龍鳳 dragon phoenix ).  


IJN Ryuho 1/700 waterline series. Image : Fujimi

The IJN Ryuho would carry out many aircraft ferry missions and training missions throughout the Pacific War and was also involved in combat including the Battle of the Philippine Sea in 1944. It was critically damaged during the Kure air raid of March 1945, stricken on 30th Nov 1945 and scrapped in 1946. 

 

JS Taigei ( SS-513 )


The JS Taigei ( SS-513 ) is the first-in-class of a new generation of advance diesel-electric attack submarine built for the JMSDF. It was also known as the 29SS ( 平成29年計画潜水艦 ) as it was promulgated in the defense plans in the 29th year of the Heisei era ( 2017 ) or even the 3000 Ton Class Submarine ( 3000トン型潜水艦 ) as that was the intended displacement of the new submarine.

It is the successor to the already very capable Soryu-class SSK with improvements in hull design for extreme quietness and impact resistance. The propeller and hull shapes are optimised to reduce flow noise generation and the submarine will adopt a floating floor structure with floorboards being attached to the inner shell via a buffer mechanism to reduce the outward transmission of vibrations and to protect the submarine against exogenous shock waves. 

Incorporating advance optical fiber technology, the integrated sonar suite comprising of a bow array, flank array and towed array, is designed to detect a future generation of very quiet submarines of Japan's near-peer rivals. The bow cylindrical array has a conformal horseshoe shape for improved directivity while the flank array has been changed from the conventional piezoelectric type hydrophones to an optical fiber hydrophone array making it smaller and lighter with reduced power requirements and reduced susceptibility to electromagnetic interference from within the submarine. The towed array has also been similarly infused with optical fiber technology for improved directivity and sensitivity.

The torpedo countermeasure system ( TCM ) installed on the Taigei is similar to those found on the last 5 Soryu-class submarines. The Type 1 Mod 1 non-hull penetrating photonics mast / periscope is said to be a licenced version of the Thales CM010 produced by Mitsubishi. Unlike traditional periscopes, these modern prism-less digital sensor masts only require very small apertures through the pressure hull for cabling and that preserves the integrity of the hull. They need not be directly above the user and are much more compact and can be housed entirely in the sail. This provides flexibility to the location of the control room which can be moved from the cramped upper deck to the more spacious second deck. Other areas of innovation are found in the submarine's C4ISTAR control systems which features enhanced combat management system and tactical display consoles. It is believed that the Taigei will be armed with japan's most advance Type 18 (G-RX6 ) torpedoes and the trusty Harpoon anti-ship missiles. 


JS Taigei Innovations.
Original image without annotations : Maritime Staff Office.


Just like the last two boats of the Soryu-class, the JS Taigei has a high efficiency power generation and storage system which utilises diesel engines and lithium-ion batteries, a combination which completely negates the need for an air-independent propulsion system. The lithium batteries, likely the Lithium Nickel Cobalt Aluminium Oxide ( NCA ) variety that populated SS-511 and SS-512 as well, were developed by Japan's leading battery maker GS Yuasa. They have many advantages when compared with lead-acid batteries, including having a higher energy density, a greater depth of discharge, a greater efficiency, a shorter charging time, a lower rate of self-discharge, a longer lifespan and also being lighter and more compact. The only disadvantages are cost and the increase in the risk of combustion which can be somewhat mitigated through the incorporation of special protective circuitry.

All these advantages of lithium-ion battery technology will translate to better endurance, higher dash speed, and better survivability for the submarine. To rapidly charge its lithium batteries, the Taigei will feature a new snorkel power generation system which involves improvements to the snorkel, diesel engines and the generators.

Externally, the Taigei looks rather similar to the Soryu submarines with the same hull form, diving planes, propeller and x-shaped rudder. Its interior however is designed to accept female submariners with separate bunking facilities. This is also a first for the JMSDF as their silent service has only recently lifted restrictions on the placement of female personnel onboard submarines.

Built by Mitsubishi Heavy Industries at its Kobe shipyard at a cost of 80 billion yen ( US$800 million ), the JS Taigei was launched and named on 14th Oct 2020 by Defense Minister Kishi Nobuo ( 岸信夫 ) who is actually ex-Prime Minister Abe Shinzo's brother. The commanding officer of the pre-commissioning unit is 45 year old Commander Tsuchiya Tooru ( 二等海佐 土屋亨 ) who will very likely continue as the first CO upon the Taigei's commissioning.

The boat is scheduled to be commissioned in Mar 2022 and will be converted into an experimental submarine for the testing and evaluation of new technology for Japan's next generation submarines. This arrangement will allow existing JMSDF submarines to dedicate their entire service life to operational and training matters, rather than the existing routine of having every submarine in the fleet to take turns performing the testbed role. Currently, the Japanese Ministry of Defense has allocated funds for three more submarines of the Taigei-class, SS-514 ( 30SS ) $697million, SS-515 ( 31SS ) $698million and SS-516 $702million. Budgetary approval for a fifth boat had been submitted on 30th Sep 2020. Following tradition, Mitsubishi and Kawasaki will each take turns building the submarines until the entire class is completed. 

The following photos and video of the launch and naming ceremony are courtesy of the JMSDF.


The JS Taigei is the 1320th ship ( 第一三二〇番船 )
constructed at the MHI Kobe shipyard.



Defense Minister Nobuo Kishi cutting rope with silver axe



Ceremonial Silver Launching Axe



Streamers activated as boat is launched



Colourful balloons released as boat moves down the slipway



More fitting and trails await the JS Taigei



                                                                                   JS Taigei Launch video                                                                                                                          

               

Likely Names of the Taigei-Class Submarines



Assuming a naming convention comprising of whale names, other names likely to be selected for the submarines in the series will definitely include those already given to the IJN ships in the past and that will include Jingei and Chogei. However, to differentiate itself from its imperial past, JMSDF will omit the use of kanji characters in the written form of the ship's name and instead write it in the hiragana form. So the Japanese name of the submarine Taigei will be written as たいげい but not 大鯨. 

This practice of kanji omission is regrettable and rather frustrating. Many different kanji characters share the same pronunciation. To present a name comprising of a string of kanji characters in its syllabary hiragana form may not reveal the actual characters and therefore their meaning at one look. There will be none of this ambiguity when the names are presented in kanji, like in the bad old days. 

Below is a compilation of possible names for subsequent vessels.


 

 

 

Kanji

Hiragana

Alphabetic

Meaning

 

 

 

瑞鯨

ずいげい

Zuigei

Auspicious

 

 

 

巨鯨

きょげい

Kyogei

Huge

 

 

 

雪鯨

ゆきげい

Yukigei

Snow

 

 

 

祥鯨

しょうげい

Shogei

Blessed

 

 

 

雲鯨

うんげい

Ungei

Cloud

 

 

 

魔鯨

まげい

Magei

Magical

 

 

 

玉鯨

たまげい

Tamagei

Jade

 

 

 

宝鯨

ほうげい

Hogei

Treasure

 

 

 

仁鯨

じんげい

Jingei

Kind

 

 

 

迅鯨

じんげい

Jingei

Swift

 

 

 

騰鯨

とうげい

Togei

Leaping

 

 

 

闘鯨

とうげい

Togei

Fighting

 

 

 

涛鯨

とうげい

Togei

Wave

 

 

 

韻鯨

いんげい

Ingei

Rhythm

 

 

 

長鯨

ちょうげい

Chogei

Long

 

 

 

遠鯨

えんげい

Engei

Afar

 

 

 

淵鯨

えんげい

Engei

Abyssal

 

 

 

焔鯨

えんげい

Engei

Flaming

 

 

 

琥鯨

こげい

Kogei

Amber

 

 

 

古鯨

こげい

Kogei

Ancient

 

 

 

皇鯨

こうげい

Kogei

Emperor

 

 

 

煌鯨

こうげい

Kogei

Glittering

 

 

 

王鯨

おうげい

Ogei

King

 

 

 

螢鯨

けいげい

Keigei

Fluorescent

 

 

 

楽鯨

らくげい

Rakugei

Merry

 

 

 

雷鯨

らいげい

Raigei

Thunder

 

 

 

舞鯨

まいげい

Maigei

Dancing

 

 

 

襲鯨

しゅうげい

Shugei

Attacking

 

 

 

寿鯨

じゅげい

Shugei

Longevity

 

 

 

若鯨

わかげい

Wakagei

Young




Some Taigei Specifications and Manga Art by @ginntokii via twitter



Taigei-Class Specifications


Displacement ( surface ) : 3000 Tonnes 
Displacement ( submerged ) : 4200+ Tonnes?
Length 84.0m
Beam 9.1m
Draught : 10.4m
Complement : 70
Engine Type : Diesel-Electric
Storage : Lithium-Ion Battery - Lithium Nickel Cobalt Aluminium Oxide ( NCA ) ?
Propulsion : Screw Propeller x 1
Speed : 20 knots submerged
Range : ?
Operational Depth : ?

C4ISTAR

Submarine Combat Management System ( 潜水艦情報管理システム )
Core Network System ? ( 基幹ネットワークシステム )
Submarine Tactical Display System ZQX-12 ( 潜水艦戦術状況表示装置 )
Information Processing Subsystem OYX-1 ( 情報処理サブシステム )
Electronic Support Measures : NZLR-2 ( 電波探知装置 )
Surface Search Radar : ZPS-6H ( 対水上捜索用レーダ )
Sonar : ZQQ-8 Fiber-Optic Array ( ソナー ) ( 水中音波探知機 ) 
Periscope : Non-penetrating Periscope Type 1 Mod 1 ( 非貫通式潜望鏡1型改1 ) 


Armament 

HU-606 21 inch ( 533mm ) Torpedo Tubes x 6 ( 魚雷発射管 )
Type 18 Heavyweight Torpedo ( 18式長魚雷 )
UGM-84 Harpoon Missile ( ハープーン対艦 ミサイル)

Others

Torpedo Countermeasure System ( 潜水艦魚雷防御システム )
Snorkel Power Generation System ( スノーケル発電システム )   


The JMSDF currently has 9 Oyashio-class submarines and 11 Soryu-class submarines in operational service. The two oldest Oyashio boats have already been converted into training submarines, JS Oyashio TSS-3608 ( ex-SS-590 ) in 2015 and JS Michishio TSS-3609 ( ex-SS-591 ) in 2017. The last Soryu boat JS Toryu ( SS-512 ) will be commissioned in Mar 2021 and together with the JS Taigei, these two submarines will enable the JMSDF to achieve its goal of fielding 22 submarines by the year 2022. This fleet size is important to counter China's increasing number of sophisticated AIP capable Type 039A submarines.

With enhancement and innovation featured in virtually every sub-system, the Taigei looks set to revolutionize submarine design and operations. The fact that it will be a dedicated experimental submarine means that the JMSDF can push the boundaries of advance technology in a continuous manner and introduce them to its operational fleet at the earliest opportunity, without having to wait years and decades for a new class of submarine to be constructed. This timely introduction of advance capabilities has already been observed among the Soryu-class boats, like the torpedo countermeasure system that was installed from the 8th to the 12th boat, and the lithium-ion battery of the last 2 boats of the series. The Taigei will no doubt accelerate the testing and implementation of such future technology within the Japanese submarine fleet. And that is definitely a good thing. 

May the Taigei be the first in a pod. Ganbatte Kudasai!