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Nakajima Ki-84 advanced versions and derivatives

airman

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http://www.militar.org.ua/militar/aviacion/avion-Nakajima-Ki-84-Hayate.html

ki-84 II
ki-84 III
ki-113
ki-116
tachikawa ki-106 ( reference : http://www.aviastar.org/air/japan/tachikawa_ki-106.php)
ki-84 N, P and R ......

anyone have more informations ? ::)
 

blackkite

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Hi! Nakajima Ki-117.
Engine:HA44, 2,530hp in take off.
Max speed:670km/h(5,820m).
Design of Ki-117 was finished 80% when the end of the war.
It was perhaps P-51 contender.
Source:All the Experimental Aircraft in Japanese Army, KANTOSHA, Tokyo.
 

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windswords

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Looks like the Ki-117 is a development of the Ki-84. Am I right?
 

blackkite

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windswords said:
Looks like the Ki-117 is a development of the Ki-84. Am I right?
You are absolutely right!
Ki-117 was a Ki-84 base middle altitude air superiority fighter, extended Ki-84's wing 50cm at each tip. Propeller diameter was 3.6m.
Empty weight increased 868kg, MTOW increased 1,047kg and Max speed increased 50km/h compared with Ki-84.
Wing span:11.238m, Length:10.177m, Height:3.85m, Wing Area:22.30m, Empty Weight:3,540kg, MTOW:5,296kg, Range:1,577km, Armament:20mm cannon×4.It's engine was HA44(without turbo supercharger) same as Fugaku variant,HA44 was the mother engine of HA54 as you already knew. At the end stage of the war, there were many U.S. fighters in Japanese sky, they were P-51D from Iou Island(硫黄島), and F6F from U.S.Navy airplane carriers.
IJA hoped this fighter very much.
 

windswords

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Thank you Airman and Blackite for confirming my guess about the Ki-117. As you can see from my avatar, I am big fan of the "Frank" fighter.
 

blackkite

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Thanks. You have a very good sense. It's one of the most beautiful fighter in WWⅡ.
U.S. surprised very much for it's high performance through post war test.
 

gerhard

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Hi Guys
I am looking for images of advances versions of Hayate, namely Ki-84-II Kai, III, IV, P, R, N (Ki-117) and Ki-116.
Please could you assist?
Cheers
Gerhard
 

visvirtusvoluntas

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Here is a photo of what I suppose is the Ki-116.
The 3-view draw relates to the Ki-117.
A brief data table of Ki-117 specs:
Wing Span: 12.300 m
Lenght: 10.177 m
Wing area: 22.3 m2
Empty weight: 3540 kg
Max weight: 5269 kg
Engine power: 2160 HP @5820m @2800rpm - 2380 HP @1570m @2800rpm - max 2530 HP
Max Speed: 610 km/h @1570m - 670 km/h @5820m
Weapons: 4x 20mm + 800 kg

Source: The Xplanes of Imperial Japanese Army and Navy 1924-45
 

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LAW

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visvirtusvoluntas said:
Here is a photo of what I suppose is the Ki-116.
It is the standard Ki-84 Ko (Ki-84a) s/n 2366, captured by the US forces in Japan after the war and shipped to USA, where it received Foreign Evaluation number FE-302.

Regards,
LAW
 

blackkite

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Japanese wikipedia says that,
Ki-84-Ⅱ : Partial wooden structure, only planned.
Ki-84-Ⅲ : High altitude fighter with turbo charged engine, only planned.
Ki-84-Ⅳ : High altitude fighter with Ha45-44 engine, only planned.
 

gerhard

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Thanks guys for your contributions.
Any schematics or drawings on the ii, iii and iv, Blackkite? What about the others?
Cheers
 

blackkite

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gerhard said:
Thanks guys for your contributions.
Any schematics or drawings on the ii, iii and iv, Blackkite? What about the others?
Cheers
Sorry I can't find any schematics or drawings on the ii, iii and iv in Japanese sosurces.
 

blackkite

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Hi! Imperfection table. ;)
There were many Ki-84 variants for example,
Night fighter, trainer, high altitude version, medium altitude version, wooden structure version, steel structure version, low power version and high power version.
 

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blackkite

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windswords

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"Ki-116's nose is little long?"

English Wikipedia says this about Ki-116: "The Ki-116 was essentially the last variant of the Nakajima Ki-84 Hayate to enter flight trials. It was originally the fourth Mansyu-built Ki-84-I, and adapted to take a 1,500 hp Mitsubishi Ha-112-II (aka Kinsei 62) engine, the same engine as used in the Kawasaki Ki-100, driving a three-blade popeller borrowed from a Mitsubishi Ki-46-III Dinah. This conversion proved to be very successful, and a reduction of 1,000 lb in empty weight being registered. The aircraft was still undergoing tests at the time of Japan's final defeat. The plane seemed to have been somewhat longer and had an increased tail surface area as compared to the original Ki-84."
 

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Thans guys
It is very difficult to identify these advanced models form the basic Ki-84-I. One would think that the engine cowl would become more streamline similar to the N1K5 compared to N1K2-J.
Cheers
 

gerhard

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Hi Guys
Are their any pictures of the Ki-84P, Ki-84R and Ki-84N.s
Cheer
 

gerhard

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Hi Airman

I am very curios. Have you had any feedback on this subject yet? I for one would love to see what these Ki-84 variants would have looked like.

Regards

Gerhard
 

blackkite

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Hi!
http://www.secretprojects.co.uk/forum/index.php/topic,18821.msg183391.html#msg183391
 

gerhard

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Thanx Blackkite
Sill, I would love to see drawings of the III and IV versions. The II would have minor changes from the original, probably similar to Ki-106, right.
Gerhard
 

blackkite

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You can see Hayate flight in this video.(From 4:40)
https://www.youtube.com/watch?v=TKVU2WGgc3M
 

windswords

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The Hayate is from 4:40 - 5:58

It is a very beautiful airplane!
 

blackkite

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windswords said:
The Hayate is from 4:40 - 5:58

It is a very beautiful airplane!
I'm very happy to know that you enjoyed this video. :D
 

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blackkite

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Hard landing. ;D
https://www.youtube.com/watch?v=svizBvTPi2M
 

CherryBlossom

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Hi everyone,

Is there any information on the Ki-84 Tei model?

Pictures, data, drawings etc.
 

blackkite

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CherryBlossom said:
Hi everyone,

Is there any information on the Ki-84 Tei model?

Pictures, data, drawings etc.
Ki-84 Tei(丁, the meaning is almost same as letter D) was a night fighter which had a 20 mm Schräge Musik at the rear of the cockpit. The first aircraft was completed in July 1944, but only two aircraft were manufactured.
Unfortunately I can't find any picture or drawing of this type.

http://wowow262.finito.fc2.com/ki84.html
http://military.sakura.ne.jp/ac/frank.htm
(Please try automatic translater. ;))
 

CherryBlossom

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blackkite said:
CherryBlossom said:
Hi everyone,

Is there any information on the Ki-84 Tei model?

Pictures, data, drawings etc.
Ki-84 Tei(丁, the meaning is almost same as letter D) was a night fighter which had a 20 mm Schräge Musik at the rear of the cockpit. The first aircraft was completed in July 1944, but only two aircraft were manufactured.
Unfortunately I can't find any picture or drawing of this type.

http://wowow262.finito.fc2.com/ki84.html
http://military.sakura.ne.jp/ac/frank.htm
(Please try automatic translater. ;))
Thats pretty good so far,

Is there any more history about why the Tei came about? If not, what is general history on when a night fighter is reuired? Thanks

Cherry
 

blackkite

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After July 1942, the necessity of the night fighter was caused to the base in Rabaul of the IJN, B-17 bomber came to venture the night bombing.
 

blackkite

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Ummm.......I can't find a 20 mm Schräge Musik at the rear of the cockpit in this side view drawing.
 

CherryBlossom

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http://www.asisbiz.com/il2/Ki-84/Nakajima-Ki-84/pages/Artwork-Nakajima-Ki-84-Hayate-Hei-technical-drawing-1.48-scale-0B.html
 

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blackkite

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Wow thansk a lot cherry-san!! I can see a 20 mm Schräge Musik at the rear of the cockpit in Tei type side view drawing. :eek:
 

blackkite

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Hi Tei type side view drawing and two seat trainer version side view drawing and picture.

Source : FAMOUS AIRPLANES OF THE WORLD, No19, ARMY TYPE 4 GIGHTER "HAYATE".ISBN4-89319-016-4
 

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airman

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I have understood that Nakajima Ki-84 Tei had 4 cannon of 20 mm ( 2 in wings and 2 instead ho-103 gun of 12,7 mm in rear cockpit )
 

blackkite

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No all five cannons are 20mm Ho-5.
 

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