The IJN reconnaissance sea plane

Hi! The IJN type experimental sea plane in 1913(Taisho 2).

The IJN launched the navy aerial navigation study Group in 1912 (Taisho first year).
The office of study group was located Taura Yokosuka.
Moreover, the airfield of the seaplane was built on the nearby Oppama seashore.
And an American Curtis seaplane and a French Morris Farman seaplane were purchased.
Second Lieutenant Chikuhei Nakajima belonged to this navy aerial navigation study Group, and he was engaged in action research in May, 1913.
Furthermore, he was appointed as Factory Manager of airplane manufacturing and repair factory of the navy Yokosuka arsenal(Yokosho) weapon manufacturing department, and a management supervisor.
He took an official trip to France for the production supervisor of the Morris Farman seaplane, and keenly realized the importance of the airplane through the First World War, and it greatly advocated the objection to the large warship huge gun principle of those days.
Design manufacture of the "IJN type experimental seaplane" was carried out in the navy Yokosuka arsenal in 1913 making a Chikuhei Nakajima engineer lieutenant into a specialist person. It was the first seaplane made in Japan.
The engine was the Curtis O type V8, 75 HP.

Yokosho type Ho go otsu seaplane.

It is the domestic seaplane by which design manufacture was carried out in the Yokosuka naval arsenal.
Moreover, it is also the first domestic machine that enabled it to attach a bomb under the body.
It is a body of the dawn, and although speed is slow, cruising capacity also has 11 hours and a half.
Unlike continental Europe, the design concept of sea power Japan would have a cruising capacity intention from the beginning.
The design was the Nakajima airplane founder's Chikuhei Nakajima navy captain.

Hi Jens! I thank you very much for your great errort.
I recommend you to concentrate all the IJN reconnaissance sea plane which I already posted (E7,E8,E10,E11,E12 and E13) to this topic, and arrange each post according to time history at the final stage.

blackkite, I'm afraid Jemiba can only regroup posts in one topic but he cannot "rearrange" anything. The chronology will be the one of your original posts, and the attachments will be in the posts where you originally added them... Hence the importance of avoiding those "all and sundry" topics such as "Japanese projects before 1945" which become a nightmare when you want to make some sense of them!

As for the question of how to reorganize posts... Some people will prefer to regroup aircraft with the same mission (as you suggest). Some will prefer to have all aircraft by a particular manufacturer together in the same thread... Others still will want all floatplanes together, all flying boats together, etc. regardless of their mission. I think the question deserves to be asked before Jemiba gets round to the hard work...

Hmmm.......Very difficult discussion for me. :-[ Anyway I keep posting.

Hi! Yokosho Tatsu go.(辰号, the dragon go)
http://alternathistory.org.ua/yaponskaya-ganza-korabelnye-razvedchiki-type-hansa-aichi-type-15ko-mi-go-yokosho-tatsu-go

All-metal version of Yokosho "Tatsu-go. Longitudinal ribs are visible on the sides of the fuselage and new front floats.

Floatplane "Tatsu-go, despite the progressive design is somewhat larger competitor from Aichi and more than 200 kg heavier-impact the lack of experience of Japanese engineers. Power 300 hp engine was apparently not enough, the aircraft was very rare especially in parts of the climb. As a result of the fleet withdrew from it and all was built only one prototype. But the leaders left the project in the middle of the Scout company Nakajima Type 15, came into service under the designation E2N.

Hi Aichi Mi go.（巳号, the Serpent go）

http://www.historyofwar.org/articles/weapons_aichi_type_15_ko.html

http://www.airwar.ru/enc/other1/migo.html

A very similar car, "Tatsu-Guo" ("Tatsu-go") built on the arsenal of Jokošo in 1925, under the leadership of designer Narihisa Yokota. Unlike the cel′noderevânnogo project "Mi-go", the Jokošo "Tatsu-go was all-metal, thus becoming one of the first all-metal aircraft in Japan.


Conceptually and visually Hydroplane "Tatsu-go as well as competitor from Aichi, very closely resembled the German Hansa-Brandenburg W 33, but structurally, the difference was even more significant than the MI-go. A pair of floats fitted to the fuselage only two racks. Many Struts, characteristic from the German prototype, disappeared. The fuselage was of rectangular cross section of the outer two ribs on both side surfaces. As well as the first prototype of the MI-go on èleronah been applied external weighting u-shaped compensators Dornier designs. The "Tatsu-go" has also been applied inline 8-cylinder engine Mitsubishi Hi "type (French Hispano-Suiza 8F) rated at 300 HP.

Aichi "Mi-go":

Thanks for that post, too, blackkite ! They are from an often somewhat neglected period, I think .
As Skyblazer wrote, the chronological order cannot be changed, at least not without ripping
out attachements and text from posts and creating completely new posts. That's why I started to
split the very big thread according to specifications. But I think, I'll add the prefixes like "E7", "E8"
and so on to the thread titles, making it easier to search for example for "E13A".

Hi! Yokosho type 1 go recannaissance seaplane for submarine borne.
http://japaneseaircraft.devhub.com/blog/608192-yokosuka-navy-1-go-experimental-submarine-borne-reconnaissance-seaplane/

http://anrai.ru/korabli/node/81.htm

Japan's first aircraft for submarine was built in 1925 by the Yokosuka Kaigun, Ko-sho (the abbreviated name is Yokosho), located in the city of Yokosuka. The aircraft was similar to the German seaplane Caspar U1.
The German designer of the prototype and the owner of the firm Henseatischen Flug-zeugwerke was Karl Kaspar. In 1923, his plane Caspar U1 was taken to Japan and shipped to the Yokosho. Later, this company was designed and built by the equivalent German machine, equipped with a more powerful engine. The Japanese designs were widely used aluminium alloys.
The plane did not have braces and Struts. The upper wing was fixed to the fuselage on four massive racks. Wingtips were rounded. Tailplane was strut also. Floats and wings from the fuselage and otstykovyvalis′ in stowed position placed in the hermetically sealed cylindrical airplane hangar located on the deck of the submarine before the cut command.
The length of the hangar stood at 7.4 m, diameter is 1.7 m cars, equipped with a more powerful engine. The Japanese designs were widely used aluminium alloys.
The plane did not have braces and Struts. The upper wing was fixed to the fuselage on four massive racks. Wingtips were rounded. Tailplane was strut also.
Floats and wings from the fuselage and otstykovyvalis′ in stowed position placed in the hermetically sealed cylindrical airplane hangar located on the deck of the submarine before the cut command. The length of the hangar stood at 7.4 m, diameter is 1.7 m.
Build a seaplane five engineers was done in four minutes. Full time training aircraft to fly since surfacing submarine was 15-16 minutes. Disassembly of the aircraft the same mechanics performed for 2 minutes.
The first prototype was built in 1927, and received the designation Yokosho 1-Go. The aircraft turned out to be the smallest Japanese military aircraft. Despite its small size, the plane was particularly strong fuselage truss made of steel pipes.
Flight characteristics of seaplane Yokosho 1-Go
Wing span, m........................................7.2
Fuselage length, m..............................6.205
Высота, м...............................................2.390
Wing area.................................15.2
Empty weight, kg ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ....400
Weight, kg Starto′aâ.................................520
Payload weight, kg ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... 120
Wing loading, kg/m2 ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ....34.2
Maximum speed, km/hr............... 154
The covering of the fuselage in the bow is the aluminium panels, tail section-obšisalas′ canvas. The upper and lower wings and tailplane had a wooden structure, covered with a cloth.
Floats are completely made of metal. The plane was installed license 5-cylinder radial French air-cooled Le Rhone capacity 80 l with mass-produced Japanese firm Gasuden. The engine was a wooden 4-blade propellers propeller with a diameter of 1.95 meters the permanent step. With this power unit aircraft developed a maximum speed of 154 km/h. The fuel tank had a capacity of 63.5 litres, the oil tank is 7.5 litres.
In 1927-1928, plane 1 Yokosho-Go was the intensive testing. Check its performance when used with the submarine I-2, which have mounted special air-tight aircraft hangar. During the tests, it turned out that while training to fly 1 Yokosho-go was as much as 40 minutes, which was totally unacceptable. For this reason, despite the generally successful tests and flying characteristics that met military aircraft design, did not receive further development.
The military has been focused on the next seaplane of similar purpose — Yokosho 2-Go.

Hi! Yokosho 2 go.

http://forum.valka.cz/viewtopic.php/p/239262#239262




The history of the float of the aircraft begins at the end of the year 1928, when tests were carried out successfully the previous type Yokosuka 1-go (basically, it was a copy of the aircraft at the Caspar-1, which Japan bought at the beginning of the 1920s). The aircraft was successfully tested in the years 1927-1928, and just after successful tests in the factory-Yokosuka (Yokosho), decided to build their own aircraft construction. However, it is surprising that, despite successful tests New Delhi the previous prototype 1-Go, again reached for a copy of another machine. The prototype of the Yokosuka 2-Go design was based on the British provenance Parnall Peto machines. The British, after the failure of the machine tests Parnall Peto (when in 1932 the submarine sank in mysterious circumstances, with the prototype) to the further development of these types of aircraft thus do not.


The situation in Japan, however, was completely different, after the success of the already mentioned the previous type, the Yokosuka has decided to continue in the development and the result of this effort was a float plane Yokosuka 2-go. The machine was a single-seater biplane with two floats, had mixed construction, when hull and floats were metal and the rest of the design canvas, with certain Duralumin components. It was powered by a pětiválcovým engine Hitachi Kamikaze 1 of 130 horses. The wings could be removed, so that the aircraft put folded into the hangar on the deck of the submarine.

The prototype was built in 1929 and until 1931 intensive tests on the submarine I-21. In 1931, the second prototype was built by the Yokosuka 2-Go Kai, who had the same dimensions as the prototype of the first. Perhaps only the weight of the machine was a little lower. The main change was the replacement of the engine under a more powerful type of sedmiválec Gasu Denki Kogyo "Jimpu" about the performance of 160 HP.


The tests are carried out on submarines I-21 and I-5. On the basis of the central staff of the air force has decided to launch serial production. The aircraft was assigned after receipt of the designation of the Yokosuka E6Y1 and started its mass production. In the years 1932-1934 in the factory produced only Kawanishi 8 pieces, some of which performed active service in 1943. The aircraft is actually E6Y1 Yokosuka became the first in the world produced machine designed to service submarines.

Yokosho 1-go and 2-go:

Wow thanks a lot.

http://www.geocities.jp/bkkhobbylife/ep/91e6y/e-91e6y.html

Shouldn't the Yokosho Ro-Go Ko-Gata be mentioned here?
Source: http://blog.goo.ne.jp/summer-ochibo

I'm sure blackkite had plans to get round to the Ro-go Ko-gata some time soon...
But it's nice not to flaunt all your stuff at once. A little bit every day is more interesting than covering every type at once I think! It leaves some space for others to comment and add about the types that are being presented.

Anyway, since you've mentioned the Ro-go Ko-gata, let's have some of it right away!

Oh RO GO with air cooling engine!

Hi Seaplanes for submarine borne. Watanabe was equal to Kyushu hikoki.
http://coollib.net/b/156932/read

Russian site is amazing!!!

E6Y had some vertical stabilizer shape, for example, small one and large one.

I feel it is worth noting most of the Ro-Go Ko-Gata aircraft belonged to the Yokosuka Kaigun Kokutai. The code Y-XXX was for operational planes and R-X was for trainers. Aircraft meant for battleships were given a single number. the first image you posted Skyblazer was of J-TUMN which is one of several mail carriers in use until 1928.

Hi Nakajima E4N1. Two aircraft were made, but did not adopted by the IJN.
Then she was converted to mail plane (J-BERG).

The 90 shiki 2go type1 reconnaissance seaplane which the Nakajima airplane manufactured was a pure domestic design, and was completed at the end of 1930.
In examination of the IJN, it finished as two sets only of trial productions noting that general performance and kinematic performance were inferior compared with the 90 shiki 1go reconnaissance seaplane.
It was completely another design in Nakajima 90 shiki 2go type 2 reconnaissance seaplane.
One set of this experimental model was supplied to the Kaibo Gikai as the "No.11 Giyu go" in the route of Haneda - Shimoda - Shimizu as passenger transport seaplane J-BERG of Tokyo air transportation incorporated company.
Reconstruction of attaching 2 seat to the rear body and confined type windshield was performed, and the engine equipped the Nakajima Jupiter 6 type which the Fokker Super Universal which Tokyo air transportation incorporated company had been operating had equipped by hope of the operation company.

Modified 90 shiki 2go type1 Giyu go.
http://www.ne.jp/asahi/airplane/museum/cl-pln10/2005cl/NAKAJIMA-T90-1.html

90 shiki 2go type2
http://www.ne.jp/asahi/airplane/museum/cl-pln10/2005cl/NAKAJIMA-Type90.html
According to the demand of the IJN, called the new aircraft replaced with a 15 shiki reconnaissance seaplane, development started the 90 shiki 2go reconnaissance seaplane in 1928 (Showa 3).
Nakajima appointed Shinobu Mitake the design chief, and made him develop the aircraft : in-company name NZ of the authentic domestic production of twin float aircraft (90 shiki 2 go type 1 reconnaissance seaplane) at this time.
Moreover, the license of the Vought O2U Corsair reconnaissance seaplane of the U.S. navy was bought, the Kiyoshi Akigawa engineer was appointed as the design chief, and he was made to produce domestically the airplane which added improvement to the design of Corsair.
It became the in-company name NJ and 90 shiki 2 go type 2 reconnaissance seaplane.
This type 2 (NJ) was the first single floatplane type in Japan.

I am no expert on any of these topics, but, Blackkite, i agree with you that secretprojects is an incredible forum. This is the only site that i visit every day, and i am constantly in awe of the breadth & depth of knowledge of so many of the folk here. I am not going to single out people by name, lest i forget someone as deserving, but i have always thanked those who have made an exciting & invaluable contribution to my passion for aircraft. I hope that they know how much they are appreciated. Blackkite, while my interest in Japanese aircraft is limited to the Fugaku and other very large projects, i have no doubt that you too, have made a regular, and very full and very intertesting contribution to these pages, and, to me, you have given us a great deal of value. I am grateful and hope you will continue tom spoil us all.

foiling said:

I am no expert on any of these topics, but, Blackkite, i agree with you that secretprojects is an incredible forum. This is the only site that i visit every day, and i am constantly in awe of the breadth & depth of knowledge of so many of the folk here. I am not going to single out people by name, lest i forget someone as deserving, but i have always thanked those who have made an exciting & invaluable contribution to my passion for aircraft. I hope that they know how much they are appreciated. Blackkite, while my interest in Japanese aircraft is limited to the Fugaku and other very large projects, i have no doubt that you too, have made a regular, and very full and very intertesting contribution to these pages, and, to me, you have given us a great deal of value. I am grateful and hope you will continue tom spoil us all.

Click to expand...

Thank you very much foiling san.
As for me, courage seethes with the language of your warm encouragement very much.
I was desperate, investigated and have contributed the result.
For me, it is very pleasant and I have deepened knowledge by it.
I am very fortunate if you have my contribution enjoyed and deepend your understanding for Japan.

It's the Experimental Yokosho Nakajima's Tractor Seaplane with Chikuhei Nakajima in cockpit.
Sorry it's not Hogo-Otsugata Seaplane.

These aircraft were designed by Chikuhei Nakajima.

Source : ENCYCLOPEDIA OF JAPANESE AIRCRAFT 1900-1945,VOL.2 AICHI, KUGISHO CONTENTS.

Chikuhei Nakajima designed these seaplane based on Curtiss seaplane and Farman seaplane which the IJN inported.