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[spoiler] what the Japanese tech tree could look like

Japan Mitsubishi Aichi Kawanishi Kyushu Kawasaki Nakajima Tachikawa Mansyu Rikugun

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pyantoryng #281 Posted 27 November 2017 - 07:19 PM

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460 airspeed

11x7.7mm for 102 firepower

Approx. 361 maneuverability

Optimal Altitude 1050 meters, Climb rate 26.4 m/s

860 HP

 

How does it look?



WoWP makes a great jousting game...especially with the 262 and people busy in furballs...
I am deaf, silent, and fly with unrealistic controls. Do not count on me to carry - my back's already broken from overweight.

J311yfish #282 Posted 28 November 2017 - 12:00 AM

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View Postpyantoryng, on 27 November 2017 - 02:19 PM, said:

460 airspeed

11x7.7mm for 102 firepower

Approx. 361 maneuverability

Optimal Altitude 1050 meters, Climb rate 26.4 m/s

860 HP

 

How does it look?

 

​-- "460 airspeed" -- could make sense for Tier V, approximating A6M2

-- "11x7.7mm for 102 firepower" -- does not make sense; and bombs not specifically mentioned

-- "361 maneuverability" + "26.5 m/s climb rate" + "Optimum Altitude 1050m" + "860hp" -- suggest low-mid-altitude bomber

-- the image itself shows the aircraft at low altitude close to the water, viewed from above

-- the image size 1049x675 is unusual, suggesting that it was cropped

-- usually https://gamemodels3d.com/​ has an indication of new aircraft; so far Ki-57 does not show up

-- There is no mention by Francillon of a Ki-57 configured in this way

-- There is no mention by Dyer of a Ki-57 configured this way

-- If everything is true and historical in nature, then possible sources are 'Meatballs and Dead Birds' by Gallagher (pictures of aircraft found at the end of the war), or 'Japanese Experimental Transport Aircraft of the Pacific War' by Picarella, or a perhaps source in Japanese indicating a one-off or late-war conversion for a specific mission or purpose (there are many instances of this).

 

Anyway, curious indeed!


Edited by J311yfish, 28 November 2017 - 01:37 AM.

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J311yfish #283 Posted 02 December 2017 - 07:54 AM

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Mitsubishi Ki-57 -- "Topsy" -- Paratroop and Special Forces Operations

-- "With the establishment of the 1st Raiding Regiment and the imminent establishment of the 2nd Raiding Regiment at the end of 1941, the compliment of aircraft to carry them into battle rose to over 50 transports.  The [IJA] arranged these planes into the 1st and 2nd Chutais and placed them under a Hikotai​ headquarters, with the 3rd and 4th Chutais​ coming along in early 1942.  Due to the limited number of aircraft available for dedicated operations it was decided that the 1st and 2nd Chutais​ would operate the Type Lo and Ki-56, while the 3rd and 4th Chutais​ would field the newer and larger Mitsubishi Ki-57 'Topsy'." (Picarella, 40)

-- "... from 1943 onwards the IJA executed all remaining paratroop operations and airborne special attack missions." (Picarella, 40)

-- "The second and possibly most notable paratroop operation of the war occurred at Palembang, Sumatra, on [02/14/1942] --- The first group consisted of 24 transport aircraft and 19 bombers, escorted by Ki-43-I 'Oscars' of the 64th Sentai​.  In place of the standard 3-aircraft formations typically used by the transports, this attacking force of transports and bombers was specially grouped into [groups of 9], a tactic that had been rehearsed during the planning stage of the operation.  This arrangement was designed to provide better fighter cover for the formations.  The second group consisted of 9 transports and 9 bombers covered by Ki-43-Is of the 59th Sentai​. // The drops were satisfactory.  The attacking force succeeded.  Within 72 hours the Japanese had control of Palembang, and air losses during the operation amounted to 3 transports and 1 bomber." (Picarella, 40)

-- "Following the success of Palembang, the IJA paratroop operations were planned against such targets as Tjilatap in Java, Pangkalanberandan and Sabang in Sumatra, and Andaman in the Indian Ocean ..." (Picarella, 40)

-- "Surprisingly, some aircraft of the 1st Paratroop Sentai​ carried out maritime patrol duties around Andaman and the Nicobar area in Bengal Bay.  To be suitable to operate in this capacity, maintenance personnel modified the Ki-57s in the field by installing bomb shackles so that the planes could carry bombs and depth charges." (Picarella, 42)

 

Sources:

Japanese Experimental Transport Aircraft of the Pacific War, by Giuseppe Picarella (2011 Stratus)

 

-----------------------------------------------------------

 

Based on the above, it would seem that the Ki-57, if truly to be in game, could be part of a new game mode -- such as: 1) capture of enemy territory via paratroopers instead of outright destruction; 2) escort of the Ki-57 so that it can reach its destination.  There is also the possibility that the Ki-57 could be used as a low-altitude bomber or as coastal defense.


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pyantoryng #284 Posted 02 December 2017 - 11:59 AM

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Within the current framework I'd say that it would appear as a bomber...

 

...the 11x7.7mm is still a mystery though...



WoWP makes a great jousting game...especially with the 262 and people busy in furballs...
I am deaf, silent, and fly with unrealistic controls. Do not count on me to carry - my back's already broken from overweight.

J311yfish #285 Posted 06 February 2018 - 02:14 AM

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New tech tree background has bombs, jet engines, and what appears to be an Aichi D3A with a bomb along the centerline.  Ki-10 upper left, Ki-84 far lower left (halfway off-screen):

Spoiler

 

old background with A5M upper left, J4M lower left and right:

Spoiler

 


Edited by J311yfish, 06 February 2018 - 02:36 AM.

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pyantoryng #286 Posted 06 February 2018 - 05:18 AM

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J4M changed to J7W1 too...

WoWP makes a great jousting game...especially with the 262 and people busy in furballs...
I am deaf, silent, and fly with unrealistic controls. Do not count on me to carry - my back's already broken from overweight.

Hiro_Yoshi #287 Posted 06 February 2018 - 09:10 AM

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View PostCommander_Rasseru, on 25 February 2014 - 11:10 PM, said:


Torpedo bombers could take a role as Attack aircraft. The Devs would just have to switch to bombs and add some guns. I don't think all B5N and the B6N were gun-less.

B5N  1 × 7.7 mm Type 92 machine gun in rear dorsal position and later  a 2 × 7.7 Type 97 machine guns in the wings. Also 1x 800kg (1,760lb) bomb or 2 × 250 kg (550 lb) bombs or 6 × 132 kg (293 lb) bombs

B6N Type 92 machine gun in a ventral tunnel at the rear of the cockpit, and a 7.7mm Type 97 machine-gun to the port wing.  Revised tail armament. 7.7 mm (.303 in) Type 92 machine gun and later replaced with one 13 mm Type 2 machine gun. 800 kg (1,760 lb) of bombs (1 x 800kg or 500kg, or 2 x 250kg)

Don't forget Seaplane.... they could be useful for a low or med tier plane. Like the Aichi M6A.

 

​That is VERY light armament, so what role would they fill? The TBM Avenger was a contemporary of the B6N yet it was more heavily armed. The same goes for US dive bombers versus Japanese dive bombers, as US Navy Dauntless dive bombers were sometimes employed as low altitude fighters.

J311yfish #288 Posted 06 February 2018 - 06:40 PM

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View PostHiro_Yoshi, on 06 February 2018 - 04:10 AM, said:

​That is VERY light armament, so what role would they fill? 

 

I am not a developer, but if I had to guess, I would say that in the context of new objectives that mimic historical scenarios, torpedo bombers might have a place -- if not as a playable aircraft, then perhaps as a bot aircraft to be protected.  For example,  provide air superiority for the torpedo bombers as they fly in and sink the American carrier.  If you are defending the carrier, then you are trying to destroy the torpedo bombers while fighters try to shoot you down.  Do you take out the fighters first to achieve air superiority, thus making quick work of the remaining torpedo bombers?  Or, do you try to take out the torpedo bombers first to keep the carrier afloat?  Just an idea.  2.0 really is the beginning of these kinds of possibilities.


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J311yfish #289 Posted 08 March 2018 - 03:18 PM

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View PostJ311yfish, on 13 March 2017 - 03:15 PM, said:

 

182,840 views since creation 02/24/2014 as of 03/13/2017 = 1,112 days = 164 views/day = 6.85 views/hour average over the lifetime of the thread.

 

241,858 views since creation 02/24/2014 as of 03/08/2018 = 1,474 days = 164 views/day = 6.84 views/hour average over the lifetime of the thread -- still going strong!

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J311yfish #290 Posted 01 April 2018 - 02:35 PM

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Imperial Japanese Army Air Force -- armament and implications

 

This is a re-post and update of an earlier post, due to limited space.

 

Key

 Purple = tier verified

 Maroon = tier approx.

 

Sources:

-- Mikesh

-- Wargaming links

 

------------------------------------------------

 

IJAAF

Year Name Caliber rpm m/s status notes

1930-~1940

1939-1944

1940-1945

 

 

Army Type 89 fixed

Te-1 flex

Army Type 89 Kai fixed

7.7mm

(7.7x58 SR)

900 820 operational

"...license-built copy of the Vickers Class E gun chambered for 7.7x58 SR Type 89 cartridge";

"synchronized well, but also saw much use as a wing mount";

heavily revised 1938-1940, thereafter marked Type 89 kai; 

Te-1 = Type 89 made flexible; "used in tail of Ki-21, and perhaps other applications."

Developer: Vickers; Giken possibly

Producer: Tokyo (early), Kokura and Nagoya A.A.'s

II 2x7.7mm Type 89 (S) Nakajima Type 91  II

II 2x7.7mm Type 89 (S) Nakajima A4N  II

II 2x7.7mm Type 89 (S) Mitsubishi Ki-18  II

II 2x7.7mm Type 89 (S) Nakajima Ki-8  II

II 2x7.7mm Type 89 (S) Nakajima Ki-11  II -- confirm

II 2x7.7mm Type 89 (S) Nakajima Ki-27  II

II 2x7.7mm Type 89 (S) Nakajima Ki-43 IV

II 2x7.7mm Type 89 (S) Kawasaki Type 92  II -- confirm

II 2x7.7mm Type 89 (S) Kawasaki Ki-10  II

II 2x7.7mm Type 89 (S) Kawasaki Ki-28  IV

II 1x7.7mm Type 89 (S) Kawasaki Ki-3  II -- confirm

II 1x7.7mm Type 89 (rear) Kawasaki Ki-3  II -- confirm

II 2x7.7mm Type 89 (rear) Kawasaki Ki-3  II -- confirm

II 1x7.7mm Type 89 (S) Kawasaki Ki-32  III

II 1x7.7mm Type 89 (rear) Kawasaki Ki-32  III

II 2x7.7mm Type 89 (W) Mitsubishi Ki-30  III

II 2x7.7mm Type 89 (rear) Mitsubishi Ki-30  III

III 2x7.7mm Type 89 © Kawasaki Ki-45  IV

II 1x7.7mm Type 89 (rear) Kawasaki Ki-45  IV

II 1x7.7mm Type 89 (rear) Kawasaki Ki-45 KAI  V

II 2x7.7mm Type 89 (W)  Mitsubishi Ki-51 IV

II 1x7.7mm Type 89 (rear)  Mitsubishi Ki-51 IV

1936-1945 Te-4

7.7mm

(7.7x58 SR)

730 810  

Developer: Probably Tokyo Army Arsenal/Giken

Producer: Tokyo (early), Kokura and Nagoya A.A.'s

II  1x7.7mm Te-4 (rear)  Nakajima Ki-8  II

IV  1x7.7mm Te-4 (rear) Kawasaki Ki-45  V

1938-1945 Army Type 98 flex

7.9mm

(7.92x57)

1100 750 operational

licensed production of Luftwaffe MG 15;

essentially the same as Navy Type 1 flexible;

produced by Nagoya Army Arsenal for IJN late in war

Developer: Solothurn

Producer: Nagoya Army Arsenal

IV  1x7.92mm Type 98 (rear) Kawasaki Ki-45  V

1938-1945 Army Type 98 fixed

7.9mm

(7.92x57)

1100 750 operational

licensed production of Luftwaffe MG 17

Developer: Solothurn

Producer: Nagoya A.A.

1940-1945 Army Type 100/1 flex

7.9mm

(7.92x57)

2200 750 operational

twin gun; "developed by placing the actions of two Czech ZB 26 (BREN type) infantry guns

side-by-side in a single receiver -- a remarkable piece of work."

Developer: Giken

Producer: Nagoya Army Arsenal

1941-1945

Army Type 1

(Ho-103 fixed)

(Ho-104 flex)

13mm

(12.7x81 SR)

900

400(S)

780 operational

Ho-103 (fixed); project to adapt U.S. Model 1921 Browning to Italian cartridge; found in Kawasaki Ki-61

Ho-104 (flexible); developed late in the war, saw service in the Mitsubishi Ki-67

Developer: Chuuou Kougyou KK

Producer: Chuuou Kougyou KK; Kokura and Nagoya A.A.'s

IV 2x12.7mm Type 1 (S) Nakajima Ki-43 IV

IV  2x12.7mm Type 1 (W) Mitsubishi Ki-51 IV

IV  2x12.7mm Type 1 © Kawasaki Ki-45 KAIa V

IV  2x12.7mm Type 1 (S) Kawasaki Ki-6001 V

IV  4x12.7mm Type 1 (S+W) Kawasaki Ki-6003 V

IV  2x12.7mm Type 1 (S) Kawasaki Ki-61 V

IV  2x12.7mm Type 1 (W) Kawasaki Ki-61 V

IV  2x12.7mm Type 1 (W) Kawasaki Ki-61-II VI

IV  2x12.7mm Type 1 (W) Kawasaki Ki-100 VII

~1941-1944+ Ho-1

20mm

(20x125)

400 820 operational

"the first in a series of Ho-00X 20mm aircraft machine gun projects;

based on the powerful Army Type 97 anti-tank gun

Developer: Japan Special Steel/Giken

Producer: Kokura A.A.

1942?-1945 Ho-3

20mm

(20x125)

400 820 operational

Developer: Japan Special Steel/Giken

Producer: Kokura A.A.

IV  2x20mm Ho-3-II (S)  Nakajima Ki-43-II  V

IV  1x20mm Ho-3 © Kawasaki Ki-45 KAIa V

IV  1x20mm Ho-3 © Kawasaki Ki-45 KAIb V

1942?-1945

Army Type 2

(Ho-5)

20mm

(20x94)

750-850 750-820 operational

"The first true fighter-fighter 20mm cannon produced by the Army, the best Japanese 20mm aircraft gun, 

and arguably the best WWII 20mm produced by any combatant nation -- when made with decent raw materials 

and skilled labor; evolved by scaling up Ho-103, chambering for shortened version of the very popular 20x100 Hispano-Suiza cartridge."

Developer: Chuuou Kougyou KK

Producer: Hitachi Heiki KK; Kokura and Nagoya A.A.'s

V  2x20mm Ho-5I (S)  Nakajima Ki-43-II  V

VI  2x20mm Ho-5 (S) Nakajima Ki-43-III V

VI  2x20mm Ho-5 (N) Kawasaki Ki-45 KAI a/b/d V

VI  2x20mm Ho-5 (S) Kawasaki Ki-88  VI

VI  2x20mm Ho-5 (S) Kawasaki Ki-61  V

VI  2x20mm Ho-5 (S) Kawasaki Ki-61-II  VI

VI  2x20mm Ho-5 (S) Kawasaki Ki-100  VII

VI  2x20mm Ho-5 (S) Kawasaki Ki-64  VI

VI  2x20mm Ho-5 (W) Kawasaki Ki-64  VI

VI  2x20mm Ho-5 (_) Kawasaki Ki-96  VI

VI  2x20mm Ho-5-II (S) Nakajima Ki-84 VII

VI  2x20mm Ho-5-II (W) Nakajima Ki-84 VII

VI  2-4x20mm Ho-5 (W) Kawasaki Ki-94-II  VIII

  Ho-51 25mm     experimental

further modified to become Ho-155

Ho-155-I = Ho-51 scaled up

Ho-155-II = Ho-155-I trimmed down, intended to fit spots originally for Ho-5

late 1944-1945

Ho-155-I

Ho-155-II

30mm

(30x115)

500 700 experimental

scaled up from Ho-51; 

would have been very difficult to synchronize at a useful rate of fire;

Neither Ho-155-I or Ho-155-II ever formally adopted, both remaining experimental;

given the misnomer 'Ho-105'

Developer: Chuuou Kougyou KK

Producer: Nagoya A.A.'s

Nakajima Ki-84-Ic

Nakajima Ki-87

Rikugun Ki-202

Nakajima Kikka

Nakajima Ki-201

VII  2x30mm Ho-105-II (W) Nakajima Ki-84 VII

VII  2x30mm Ho-105-II (W) Tachikawa Ki-94-I  VII

VII  2x30mm Ho-105-II (W) Tachikawa Ki-94-II  VIII

VIII  2x30mm Ho-105-I ©  Tachikawa Ki-162-I  IX

IX  2x30mm Ho-105-III © Tachikawa Ki-162-I  IX​, Tachikawa Ki-162-III  X

   

 

     

 

1943-1945

Ho-203

37mm

(37x111 R)

~130 570 operational

"entirely unsuited for wing mounting;

very low rate of fire;

relatively useless for fighter-fighter conflict, though pressed into such use";

designed/installed for bomber attack

Developer: Japan Special Steel

Producer: Japan Special Steel; Kokura and Nagoya A.A.'s

Mitsubishi Ki-83

VI  1x37mm Ho-203 © Kawasaki Ki-45 KAIc  V

VI  1x37mm Ho-203 (_) Kawasaki Ki-45 KAId  V

VI  1x37mm Ho-203 (N) Kawasaki Ki-96  VI

Kawasaki Ki-102

Kawasaki Ki-108

VI  1x37mm Ho-203 (H) Kawasaki Ki-88  VI

1944-1945 Ho-204

37mm

(37x144)

400 450 operational

primary use of the gun was in the Ki-46-III Kai air defense fighter;

some sources misidentify as Ho-203;

Developer: Chuuou Kougyou KK

Producer: Chuuou Kougyou KK (few); Kokura and Nagoya A.A.'s

IX  2x37mm Ho-204 (W) Tachikawa Ki-94-I  VII

Mansyu Ki-98

1943-1945 Ho-301

40mm caseless

(40x129)

475 245 operational

"the only aircraft gun using caseless ammunition to see combat;

should really be considered an automatic grenade launcher"

Developer: Chuuou Kougyou KK

Producer: Nagoya A.A.'s

Nakajima Ki-44-IIc

1944?-1945 Ho-401

57mm

(57x121 R)

80-100 560 operational

"can be though of as either a scaled-up Ho-203, or automated Type 90 tank gun"

Developer: Japan Special Steel

Producer: Japan Special Steel; Nagoya A.A.

Kawasaki Ki-102

Tachikawa Ki-94-I​ -- Note: premium in game uses the 2x37mm configuration instead

             
1943-1945 Ho-402

57mm

(57x577 R)

    experimental

57x577R tank/antitank gun with recoil operated automatic loader; 

"Rikugun Ki-93-Ia designed around this gun"

Rikugun Ki-93-Ia

1945 Ho-403 (57x187 R)     experimental

little-known Kokura arsenal project; design stage 1945; smaller and less powerful than Ho-402;

probable 57x187R

1943-1945 Ho-501 75mm     experimental 75mm version of Ho-203; in development at end of war, no testing reported
 

Ho-502/503/504

      experimental unknown
  Ho-505 75mm     experimental

distinct from Ho-501; "this may be the Type 88 antiaircraft gun fitted with a recoil-operated automatic loader"

Rikugun Ki-93-1b

             
1942-1945 Ho-3057 57mm caseless     experimental single feasability prototype; now at USAF museum
1942 Ho-3075 75mm caseless     experimental abandoned in design phase
1942-1945 Ho-3157 57x187RB     experimental 2 unfinished feasibility prototypes; recovered 1945
1942 Ho-3175 75mm     experimental 75mm version of Ho-3157; abandoned in design phase 1942

Data: Mikesh.     [more]

 

Conclusions
-- Kayaba Katsuodori's 30mm caseless ammo might be fired from an experimental cannon named 'Ho-3030' (based on naming conventions for Ho-3057 and Ho-3075 caseless ammo projects)


Edited by J311yfish, 15 November 2018 - 05:00 PM.

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J311yfish #291 Posted 01 April 2018 - 02:36 PM

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Imperial Japanese Navy -- armament and implications

 

This is a re-post and update of an earlier post, due to limited space.

 

Key

 Purple = tier verified

 Maroon = tier approx

 

Sources:

-- Mikesh

-- Wargaming links

 

------------------------------------------------

 

IJN

Year Name Caliber rpm m/s status notes
1932-1945 Navy Type 92 flex

7.7mm

(7.7x56 R)

(.303 British)

600 740 operational

license-built copy of Lewis lmg built by BAS in England

Developer: Savage Arms Co.

Producer: Toyokawa and Yokosuka N.A.'s

II  2x7.7mm Type 92 (S) Aichi D1A1  II -- confirm

II  1x7.7mm Type 92 (rear) Aichi D1A1  II

II  1x7.7mm Type 92 (rear) Kusho B4Y1  II

II  1x7.7mm Type 92 (rear) Nakajima B5N1  III

II  1x7.7mm Type 92 (rear) Nakajima B5N2  IV

II  2x7.7mm Type 92 (rear) Aichi D3A  IV

II  2x7.7mm Type 92 (S) Kusho D4Y  V -- confirm

II  1x7.7mm Type 92 Kugisho P1Y1  VI

1937-1945

Navy Type 97 fixed

7.7mm

(7.7x56 R)

(.303 British)

900 745 operational

license-built copy of the Vickers E

Developer: Vickers

Producer: KK Nihon Seikoujo; Suzuka and Yokosuka N.A.'s

III  2x7.7mm Type 97 Model 1 (S)  Nakajima A4N  II

III  2x7.7mm Type 97 Model 1 (S)  Mitsubishi A5M  III

III  2x7.7mm Type 97 Model 1 (S)  Mitsubishi Ki-33 III

III  2x7.7mm Type 97 Model 2 (S)  Mitsubishi A6M1  IV

III  2x7.7mm Type 97 Model 2 (S)  Mitsubishi A6M2  V

V  2x7.7mm Type 97 Model 2 (S) Mitsubishi A6M3 VI

III  2x7.7mm Type 97 Model 2 (S)  Mitsubishi A6M5  VI

III  2x7.7mm Type 97 (S)  Mitsubishi J2M  V

III  2x7.7mm Type 97 (S)  Kawanishi N1K1-J  VI

III  2x7.7mm Type 97 (S)  Aichi D3A  IV

III  2x7.7mm Type 97 (S)  Kusho D4Y  V

III  1x7.7mm Type 97 (VT) Nakajima B6N  V

III  1x7.7mm Type 97 (rear) Nakajima B6N  V -- confirm

1939-1945

Navy Type 99 Mk.1

fixed/flex

20mm

(20x72 RB)

520-550 600 operational

all variants based on license-built copy of Oerlikon FF (FF, FFL, FFS)

Developer: Oerlikon/Dainihon Heiki KK

Producer: Dainihon Heiki KK; Toyokawa N.A.; likely others

V  2x20mm Type 99-1 Model 1 (W)  Mitsubishi A6M1  IV

V  2x20mm Type 99-1 Model 1 (W)  Mitsubishi A6M2  V

V  2x20mm Type 99-1 Model 1 (W)  Mitsubishi A6M5  VI

VI  2x20mm Type 99-1 Model 3 (W)  Mitsubishi A6M2  V

VI  2x20mm Type 99-1 Model 3 (W)  Mitsubishi J2M  V

VI  2x20mm Type 99-1 Model 4 (W)  Mitsubishi J2M  V

V  1x20mm Type 99-1 (N)  Nakajima J1N1  V

1941-1945

Navy Type 99 Mk.2

fixed

20mm

(20x101 RB)

480-500 750-760 operational

license-built Oerlikon FFL

Developer: Oerlikon/Dainihon Heiki KK [Kugishisyo possibly]

Producer: Dainihon Heiki KK; Tagajou N.A.

VII  2x20mm Type 99-2 Model 1 (W)  Mitsubishi A6M5 VI

VII  2x20mm Type 99-2 Model 4 (W)  Mitsubishi A7M VII

VII  2x20mm Type 99-2 (W)  Mitsubishi J2M  V

VII  2x20mm Type 99-2 (W) Kawanishi N1K1-J  VI

VII  4x20mm Type 99-2 (W) Kawanishi N1K1-J  VI

VII  4x20mm Type 99-2 (W) Kawanishi N1K2-J  VII

VII  2x20mm Type 99-2 (W) Aichi B7A  VI

VII  2x20mm Type 99-2 (F) Aichi S1A  VII

VII  2x20mm Type 99-2 (remote-control dorsal turret) Aichi S1A  VII

VII  2x20mm Type 99-2 (N) Nakajima J5N1  VII

03/1945+

Navy Type 99 Mk.2 Model 5

fixed

20mm

(20x101 RB)

620 760 operational

used Kawamura belt feed of the Model 4 and a very strong multiple coil spring

external bolt buffer to achieve a much higher rate of fire than typical for Oerlikon guns

VII  2x20mm Type 99-2 Model 5 (W)  Mitsubishi A7M VII

VII  2x20mm Type 99-2 Model 5 ©  Mitsubishi J4M VII

1941-1945 Navy Type 1 flex

7.92mm

(7.92x57)

1000 785 operational

license-built copy of Luftwaffe MG 15; like IJAAF Type 98;

Nagoya Army Arsenal became major manufacturer for Navy 

Developer: Solothurn

Producer: Nagoya Army Arsena; Tagajou and Yokosuka N.A.'s

III  1x7.92mm MG-15 rear gun Bf 110 C-6  IV

III  1x7.92mm Type 1 (rear) Kusho D4Y  V

III  1x7.92mm Type 1 (rear) Aichi B7A  VI

~1942-1945

Navy Type 2 flex

13mm

(13x64 B)

900 750 operational

license-built copy of Luftwaffe MG 131, in the original percussion-ignition form of that gun

Developer: Rheinmetall-Borsig AG

Producer: KK Nihon Seikoujo; Suzuka (possibly) and Toyokawa N.A.'s

IV  2x13.2mm Type 2 (S)  Mitsubishi A5M  III -- confirm; possible error in name/caliber

VI  1x13mm Type 2 (rear) Nakajima B6N  V

VI  1x13mm Type 2 (rear) Kusho D4Y  V

VI  1x13mm Type 2 (rear) Aichi B7A  VI

VI  Kugisho P1Y1  VI

VI  2x13mm MG 131 (S) Fw190A-5/D/Bf 109F/G/Me209A VI/VI/VI/VII/VIII

VI  13mm MG 131 rear Ju 88P  VI

VI  2x13mm MG 131 rear Me265  VI

VII  4x13mm MG 131 rear Me265  VII

1944-1945

Type 2 fixed

30mm

(30x91 RB)

400 710 operational

underpowered, slow-firing, limited magazine capacity;

limited deployment; combat testing spring 1944 on Truk;

rejected for fighter wing mounting, ostensibly because of its small magazine capacity

Developer: Dainihon Heiki KK

Producer: Dainihon Heiki KK

VII  2x30mm Type 2 exp (W) Mitsubishi A6M3 VI

VIII  1x30mm Type 2 © Mitsubishi J4M VII

VIII  4x30mm Type 2 ©  Kyushu J7W1 VIII

1943-1945

Type 3 fixed/flex

13.2mm

(13.2x99)

800 790-800 operational

straightforward copies of the M2 Browning (12.7x99 Browning) but chambered for the 13.2x99 Hotchkiss

Developer: Kugishisyo possibly

Producer: KK Nihon Seikoujo; Suzuka and Toyokawa N.A.'s

VI  2x13.2mm Type 3 (W)  Mitsubishi A6M5 VI

VI  2x13.2mm Type 3 (W)  Mitsubishi A7M  VII

VI  2x13.2mm (_) Kawanishi N1K3-J  VII

VI  2x13.2mm (_) Kawanishi N1K4-J  VII

VI  2x13.2mm (_) Kawanishi N1K5-J  VII

1945

Type 5 fixed

30mm

(30x122)

500 760 operational

original and efficient; recoil to airframe greatly reduced;

weapon of choice for all Navy proposed/prototype fighter/interceptors of 1945;

about 2000 made, but few in action before war end.

Developer: Japan Special Steel

​Producer: Toyokawa N.A.; test quantities by Japan Special Steel and KK Nihon Seikoujo

VIII  2x30mm Type 5 (W)  Mitsubishi J2M5  V (proof)

VIII  2x30mm Type 5 (F)  Aichi S1A  VII

VIII  2x30mm Type 5 (N)  Nakajima J5N1  VII

VIII  1x30mm Type 5 (N)  Nakajima Kikka  VIII

VIII  2x30mm Type 5 (N)  Nakajima Kikka  VIII

VIII  2x30mm Type 5 (W)  Mitsubishi J8M  VIII

IX  4x30mm Type 5 ©  Kyushu J7W1  VIII

IX  4x30mm Type 5 ©  Kyushu J7W2  IX

             
1939 14-shi 23mm     experimental

scaling 20mm Oerlikon FF design down to produce medium caliber gun

03/1939 to 09/1942 program to improve Oerlikon FFS motor-cannon [designations provided]

  14-shi 14mm     experimental

testing began 03/1941, completed by 07/1942    

cartridge similar to 20x100 RB Oerlikon L, necked down to 14mm; similar to Type 99-1

08/1942+ 17-shi       experimental “special large caliber machine gun” program; several developed; most or all disintegrating belt fed.
  17-shi 25mm     experimental

“Model 4” (4 gata) Type 96 Hotchkiss antiaircraft gun modified for aircraft use; belt fed;

heavy and slow firing; abandoned in favor of 30mm

  17-shi-otsu 30mm     experimental becomes Type 5 30mm (operational)
 

17-shi-kou

30mm     experimental

Kugisho-designed 30x122 cartridge; 10kg heavier than otsu

X  Kyushu J7W3?  X -- confirm; possible error in name

X  Kugisho R2Y2?  IX

  17-shi 40mm     experimental

40x150 cartridge; diagramed by Chinn in great detail; very original, short-recoil operated

with advanced primer ignition, rising-block locked, disintegrating belt fed; designed and developed

primarily by Kure Naval Arsenal; rejected in favor of Type 5 30mm in 03/1945 after considerable development;

6 projectile modifications of Vickers 40mm catalogued.

X  Kugisho R2Y2?  IX

X  Kugisho R2Y3?  X

  18-shi 20mm     experimental

closely related to Type 5 (30mm) but using a 20x98 cartridge (shortened from 20x125);

may be direct derivative of Army Ho-4; developed by Kugisyo; discontinued 03/1945.

Data: Mikesh


Edited by J311yfish, 15 November 2018 - 04:01 PM.

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J311yfish #292 Posted 08 April 2018 - 11:47 PM

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March 2018: Developer Q&A Part 1

 Q: What additions to the Japanese line can we expect to come in the following years?
A: The near future will bring a mini-branch of Japanese heavy fighters that will specialize in bomber interception.

 

Q: Will the Ki-61 ever see its synchronized Ho-5 20mm cannons, or its Ho-155 30mm wing cannons?
A: No plans for that currently.

 


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J311yfish #293 Posted 20 April 2018 - 02:11 PM

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View PostJ311yfish, on 21 March 2014 - 01:27 PM, said:

Tier VII

 

Mitsubishi A7M Reppū (Strong Gale)  烈風  -- "Sam"  (05/1944) -- Experimental Carrier Fighter

 

Kawanishi N1K2-J Shiden Kai (Violet Lightning, Modified)  紫電  -- "George"  (12/1943) -- Navy Interceptor Fighter

 

Nakajima J5N1 Tenrai (Heavenly Thunder)  天の雷  (07/1944) -- Experimental Interceptor Fighter

 

Kugisho P1Y3 Ginga (Galaxy)  銀河  -- "Frances" (07/1945+)

 

Kayaba Katsuodori -- (~1944) -- Experimental Ramjet Interceptor

 

 

Kayaba Katsuodori vs. Mitsubishi J8M vs. McDonnell XF-85 Goblin

  Katsuodori J8M / Ki-200 XF-85 Goblin
Span (m) 8.99 9.47 6.43
Length (m) 4.48

5.88 (Ki-200)

6.03 (J8M)

4.52
Height (m) 1.85 2.68 2.54

Wing area (m2)

Wing Loading (kg/m2)

 

12.57

.....

 

17.72

219.22 (J8M1)

219.70 (J8M2)

9.34

271.9

 

Wing sweep 25.5°   37°
Empty (kg) 850

1445 (J8M1)

1505 (Ki-200)

1510 (J8M2)

1807

Loaded (kg)

 

Loaded max (kg)

 

3000

 

 

 

3000 (J8M1)

3650 (J8M2)

3870 (J8M1/Ki-200)

3900 (J8M2)

2540

 

 

 

Max speed 900 km/h (est.)

800-900 km/h @ 10000m (est) (Ki-200)

        900 km/h @ 10000m (est.) (J8M)

1,043 km/h @ SL

   935 km/h @ 10,670m

Landing speed 100 150 km/h ...
Range/Endurance 30:00

5:30 (J8M)

20:00
Climb 3:00 to 10000m

3:40 to 10000m (Ki-200)

3:50 to 10000m (J8M)

3:26 to 1000m
Ceiling 15000m 12000m 14630m
Armament 2x30mm caseless

2x30mm Type 5 or 1x30mm Type 5 (J8M)

2x30mm Ho-155 (Ki-200)

4x0.50"

Data: Dyer, Francillon

 

XF-85 Goblin is comparable in size to Kayaba Katsuodori ramjet fighter, though it has a smaller profile from above/below (~30%), and larger profile from front/back (+37%).  For comparison to Rikugun Ki-202 (tier IX/X rocket fighter) see spoiler tag above.


Edited by J311yfish, 20 April 2018 - 02:23 PM.

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J311yfish #294 Posted 08 August 2018 - 09:46 PM

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Akamatsu medal = Mitsubishi J2M Raiden

 


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pyantoryng #295 Posted 18 October 2018 - 01:29 PM

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Got any info on Type 3 aircraft rockets? The current carrier rework over in WoWS has their Japanese fighters sling this "Type 3 No. 1 Mk.28" thing as their rocket attacks. Maybe Japan can finally get some extra explosive power for use in WoWP?

 

The Hakuryu also get a Nakajima J5N "Tenrai" (is that thing even supposed to operate off carriers?) option as torpedo bombers but not "Wakusei" dive bombers. Could this thing be included into WoWP in some capability?



WoWP makes a great jousting game...especially with the 262 and people busy in furballs...
I am deaf, silent, and fly with unrealistic controls. Do not count on me to carry - my back's already broken from overweight.

J311yfish #296 Posted 09 November 2018 - 11:42 PM

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Update 2.08

 

 

Tech tree project will be updated accordingly soon.  Rather than move information around, though, which is complicated by forum constraints on post length, I am simply going to post a list of modules from the new heavy fighters, with their corresponding implications.

 

Pretty awesome update for Japan, really!  And the implication of Ki-93 being tier VII instead of VIII means further-on jet developments, which is kind of exciting.

 

Tier

Aircraft

Engine Airframe Armament   Turret Outboard weapon

Implications

V

Ki-45

III  2xNakajima Ha-20 Otsu V  Ki-45 Kai III  2x7.7mm Type 89 © IV  20mm Ho-3 © IV  7.7mm Te-4 None  
  III  2xNakajima Ha-25   IV  2x12.7mm Type 1 ©   V  7.92mm Type-98 VI  2x250kg  
  IV  2xMitsubishi Ha-102   VI  37mm Ho-203 ©      

Nakajima J1N1 heavy fighter

Mitsubishi Ki-46-I/II

Mitsubishi Ki-51 attack

Nakajima Ki-63

Kawasaki Ki-66-Ia

               

VI

Ki-102

V  2xMitsubishi Ha-112-II VI  Ki-102 Ko VI  37mm Ho-203 © IV  2x20mm Ho-3 © V  7.92mm Type-98 None

Kawasaki Ki-45-II/96 heavy fighter

Mitsubishi Ki-46-III KAI

Mitsubishi Ki-46-IIIb

Mitsubishi Ki-46-IIIc

Kawasaki Ki-100-I (conversion of Ki-61)

Nakajima Ki-116 (conversion of Ki-84)

  V  2xMitsubishi Ha-112-II Ru   VI  57mm Ho-401 © V  2x20mm Ho-5 © VI  12.7mm Ho-103 VI  2x250kg

Mitsubishi Ki-46-IVb

Kawasaki Ki-108 heavy fighter

Kawasaki Ki-100-II

               

VII

Ki-93

VII  2xMitsubishi Ha-211 Ru VII  Ki-93 Ko VI  57mm Ho-401 © V  2x20mm Ho-5 (W) VI  7.92mm Type 100 None

Kawanishi J3K

Kawanishi N1K5-J

Aichi B7A

Mitsubishi Ki-83 heavy fighter

Mansyu Ki-98 heavy fighter

Kugisho P1Y5 (possible parent for Ohka)

Nakajima G8N2 (parent for Ohka)

  VII  2xMitsubishi Ha-214 Ru   VII  57mm Ho-402 © VII  2x20mm Ho-5-II (W) VII  12.7mm Ho-103 VI  2x250kg Kawasaki Ki-91 heavy bomber

 

Updated big-picture image page 1.

 

Nakajima Ha-20b

-- "In 1937 Nakajima acquired another infusion of Bristol engine technology by licensed production of the 840hp Mercury VIII 9-cylinder radial.  It was more compact than the original Jupiter, much more powerful than even the Kotobuki, and in fact comparable with the much larger Hikari.  The Army soon expressed an interest in the engine, designating it the Ha-20 … the engine was compact and powerful, and was specified to power a new Army Experimental Twin-engine Fighter, the subject of a revised specification issued in [12/1937].  This was a successor to an earlier specification issued in [03/1937] for this type of aircraft, to which Nakajima Ki-37, Kawasaki Ki-38, Mitsubishi Ki-39 had all been invited to tender … the Kawasaki design was considered promising and a detailed mockup was completed by [10/1937]. // The revised specification contained new performance requirements and Kawasaki was instructed to develop its Ki-38 design to meet them under the new designation Ki-45.  The first prototype had engine cowlings very similar to those of the Mercury-powered Bristol Blenheim I, with cylindrical profile and an integral exhaust collector ring around the front rim, but, compact as the engine was, the installation led to excessive drag and frequent nacelle stall.  Various alterations to reduce drag were tried in the following 3 prototypes, including tapered cowlings with rocker cover blisters, wide-chord spinners, and even annular spinners to force cooling air through their centers and out through wing slots … Unfortunately all the effort was to no avail and the Ha-20b powered Ki-45 was abandoned in mid-1939.  As soon as smaller diameter 14-cylinder radial engines became available from early 1940, the Ki-45 was converted to mount them, finally entering service in [08/1942]." (Goodwin & Starkings, 143)

-- "Despite production problems and its failure in the Ki-45, the Ha-20 was a significant engine for Nakajima … introduced Nakajima to the construction of modern, compact,  high powered radial engines, standing them in good stead for future projects.  10 examples of the Ha-20 and Ha-20b were constructed between 1937 and 1939." (Goodwin & Starkings, 143)

 

Mitsubishi Ha-214

-- "... The Ha-214 was bench tested from the end of 1943 and flight tested in the 16th and 17th Ki-67 prototypes in early 1944.  No photos have survived of these installations and depictions of them … apparently driving six bladed propellers.  Little is known about the performance of the prototype units, although it appears to have been promising as they were planned for a new, strengthened version of this aircraft, the Ki-67-II.  In addition the Army planned to use the Ha-214 for other future projects:

  • [Tachikawa] Ki-74 … which were replaced with the Ha-211 before detail design had begun …
  • Kawasaki Ki-89 Army Experimental Research Plane about which virtually nothing is known …
  • [Kawasaki] Ki-91, a large 4-engine design with a projected range of 4,500km with a 4000kg bomb load.  Its Ha-214 installation featured ultra long chord cowlings, turbo-superchargers, and 6-blade propellers as for the G7M1; it was also pressurized and had remotely controlled gun barbettes.  Tooling for the prototype had begun, but was largely destroyed in a [02/1945] bombing raid, whereupon the project was cancelled." (Goodwin & Starkings, 114)

-- "... Whatever its virtues, the Ha-214 was not put into series production, although other factors may have had a bearing on this … probably shared some components with the sorely needed Ha-104 that had priority. // One other aircraft that did fly with Ha-214 engines was the Ki-93, powered by 2 that actually had the ultra-long chord cowlings, long spinners and 6 bladed propellers of the project models.  The Ki-93's engine cowling length is explained by the frontal cooling fan at one end, and by the shrouding of the internal cooling gills at the other.  The first prototype made a small number of test flights, the last one being terminated by a collapsed starboard undercarriage leg … A second prototype was completed and never flown as the war end stopped all further testing." (Goodwin & Starkings, 114-115)

 


Edited by J311yfish, 13 November 2018 - 09:35 AM.

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J311yfish #297 Posted 15 November 2018 - 09:33 AM

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View Postpyantoryng, on 18 October 2018 - 08:29 AM, said:

Got any info on Type 3 aircraft rockets? The current carrier rework over in WoWS has their Japanese fighters sling this "Type 3 No. 1 Mk.28" thing as their rocket attacks. Maybe Japan can finally get some extra explosive power for use in WoWP?

 

The Hakuryu also get a Nakajima J5N "Tenrai" (is that thing even supposed to operate off carriers?) option as torpedo bombers but not "Wakusei" dive bombers. Could this thing be included into WoWP in some capability?

 

Found some information about air-air and air-ground rockets in a Japanese engine book.  Will update.

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J311yfish #298 Posted 16 November 2018 - 01:05 PM

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Heavy Fighter speculation -- tiers VIII-X

 

If there are ever to be heavy fighters at tiers VIII-X, they might resemble a continuation of the Me 262 with 50mm cannon -- as the Nakajima Ki-201 with a 57mm or 75mm development.  There is evidence in the historical narrative.

 

Me 262 A-1a/U4 -- 50mm MK 214 or 50mm BK 5 // Me 262 E-1 -- 55mm MK 114

 

Historical Narrative -- aircraft designed around large-caliber cannons:

 

Armament -- extrapolation of cannon development:

 

Engines -- extrapolation of engine development:

 

 


Edited by J311yfish, 28 November 2018 - 02:00 PM.

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