imperial japanese navy

Interesting documents : https://maritime.org/doc/id/oni220-german-japan-subs/index.php#toc

A detailed description of the Torpedo Protection System for this ship is held by the University of Tokyo and has been digitised. I have downloaded, and uploaded here, the description and the diagram of this system. It goes without saying that the presence of this document in Japan is a very...

Something about Super-A Cruisers before Maru-5 Project. Source: 早川幸夫，スーパー・クルーザー「超甲巡」覇王伝説，月刊《丸》，2013年5月号 (Monthly "Maru", May 2013). The author stated that in a 1934 document named "Required National Defense Force from Treaty-Break to 1940" (条約決裂後ノ昭和十五年度ニオケル国防所要兵力表), that IJN's original plan...

View: https://www.youtube.com/watch?v=9Lgc_NtwApQ Great small documentary of Historigraph with English subtitles

https://en.wikipedia.org/wiki/Fu-Go_balloon_bomb https://en.wikipedia.org/wiki/Japanese_submarine_I-34 https://en.wikipedia.org/wiki/Japanese_submarine_I-35 After months of research, Kusaba's team developed a six-metre (20 ft) prototype balloon capable of flying at 25,000 feet (7,600 m) for 30...

Regulus and Ram were a 2 ship class of minelayers under construction in the Dutch east indies when the Japanese took over the colony. They were renamed Nankai and Nanshin, Nankai was completed as a powerful gunboat, but Nanshin was less heavily armed and not completed. Small note about the link...

yeah I bet you can't guess The I-351 and her sister sub the I-352 were laid down as flying boat tender submarines, but converted during construction to tanker subs. Original specifications, design docs and illustrations itt

The Ha-101 class submarines were laid down as transport submarines, but during construction were converted into tanker submarines, small submarine motherships/tenders, and radar picket subs. Any specifications or illustrations of the intended original design would be bussin...

The Ohama and her sister ship Okashi were laid down as target ships, successors to the Hakachi. Ohama was completed as an escort vessel, and Ohashi collided with Yamashio Maru and sunk before completion, but would have been given the same treatment. I can't find any illustrations of their...

The Satsuma class as laid down was intended to mount 12 12 inch guns, with 4 on the centerline and 5 on either side, in a total of 4 twin and 4 single gun turrets. Due to budget issues that the link goes into, the ships got redesigned as semi-dreadnoughts. I can't find any illustrations of the...

This is not an unbuilt project, but it is an enigmatic mystery that perhaps members here might be able to add more to. The Volta was a 19-ton electric-powered submarine armed with two 12in torpedo tubes, built by Rennie Forrestt Shipbuilding, Engineering & Drydock Co. Ltd at Wivenhoe, Essex...

Here I gathered all the various cruiser designs and projects proposed for the Imperial Japanese Navy Protected Cruisers: Not found any so far except the cancelled sister ships of the Unebi and Tone classes Light Cruisers: Design C-19 (1912) - A primary mine-layer cruiser design offered before...

I've tried to collect the WW2 Japanese radar Type designation systems with data and if possible photos and drawings. Gathered from these sources: http://www.combinedfleet.com/radar.htm http://pwencycl.kgbudge.com/R/a/Radar.htm http://home.e01.itscom.net/ikasas/index.htm...

While Japan constantly grew in power since the Meiji restoration and being an island nation it's navy too had to have a prominent role in it's military forces The first warships of Japan were built in ofreign Yards mostly in British but there were quite a few French and a some from US yards as...

For some time I've already made these drawings just not yet posted here. You can now see how the Tosa / Kaga class battleships evolved from an Improved Nagato to as laid down as a 5 turreted similar speed slightly larger battleship. Let us begin: Fast Nagato series: A-115...

View: https://www.youtube.com/watch?v=RFvhMJ-LDZU https://en.wikipedia.org/wiki/Japanese_battleship_Mutsu

In the very first years of aircraft carriers development both English and Japanese envisioned launch of their aircrafts directly from the hangar. This result was usually achieved through an opening in the bow, at the hangar level, and a catapult that launched aircraft in the ship's direction...

View: https://www.youtube.com/watch?v=kb5F5s2F3mA

Another cracking article from Mr Day. https://thespacereview.com/article/4051/1

I like japanese paintings, and I like WW2 aviation too, so what is better of japanese paintings about aircraft, painted during WW2? After a little search, I found the following, some taken from here: Zero fighter ready to take off from an aircraft carrier. It is also on the cover of this book...