August 8th, 2146
107 Piscium III

Reminder: Memory replacement is the first step towards rank privileges.
Overwatch 1st, 2nd, and 3rd Regiments performed planetary assault after preliminary orbital bombardment from IJN warships. No Overwatch casualties within first eight hours of fighting. Rakhas casualties estimated one-hundred and fifty dead. Imperial Intelligence suggests 4,000+ hostile Rakhas planetary forces. Overwatch commanders are supplied with anti-fatigue rations to increase tactical and strategic persistence. Combat units underwent Tengu augmentation surgery prior to invasion, reducing the strain of sustained warfare. Memory psychoengineering completed.

2nd Overwatch Regiment ordered to go on frontline offensive.

I thought today I should show the current state of affairs in the Empire of Nihon. The ship design portion is a wall of ship design text, so I don't blame you if you don't read it. Having fun with this playthrough after 119 years and several real world hours of playtime. If you have any questions, comments, feedback, let me know in the comments thread!

Overview of the Empire's population, resources, technology, etc.


Normally, I would send a galaxy map. But I don't have the know-how to make a full resolution and scale image of the galaxy at its current state. So just trust me that there are 105 systems (51 of which are surveyed)

Largest colonies are:
Mars - New Kyoto Prefecture (population 1,003 million)
Luna - Mūnsh Prefecture (population 610 million)
Psi Ceti III - New Tokyo Prefecture (population 555 million)

Foreign Affairs
The Nihon Empire has made temporary friendship with an alien empire known as the Kingdom of Binja. In simulated save scummed wargames testing the capability of the Binja, the IJN has too few armaments and vessels to fight an effective space war. Rakhas have been detected in the furthest reaches of known space, they are on the conquest list. The Donner 91 Precursors (reflavored as Necrons) still exist and have defeated or destroyed every expeditionary fleet into the system.

Technology
As of 2144, the Nihonese Empire researched Inertial Fusion Drives but have yet to design ships with the new technology.

Ship Designs of the IJN
The Kasagi is a replacement warship of the Azuma. She is designed act as a ship of the line with point defense capability. The IJN developed two kinds of warships, missile and beam. Beam ships were seen as ineffective in ship to ship combat but provided sufficient point defense against missiles. In simulations against the Kingdom of Binja, it was theorized that the beam warships would be more effective than the missile warships as the Binja Navy does not use missiles.

Kasagi class Battlecruiser      20,000 tons       561 Crew       5,993.3 BP       TCS 400    TH 4,000    EM 3,000
10000 km/s      Armour 15-65       Shields 100-428       HTK 143      Sensors 90/90/0/0      DCR 138      PPV 68.8
Maint Life 3.16 Years     MSP 3,881    AFR 178%    IFR 2.5%    1YR 586    5YR 8,790    Max Repair 1000 MSP
Kaigun-Daisa    Control Rating 3   BRG   ENG   CIC   
Intended Deployment Time: 12 months    Morale Check Required   

Magnetic Fusion Drive  EP2000.00 (2)    Power 4000    Fuel Use 57.93%    Signature 2000    Explosion 16%
Fuel Capacity 1,717,000 Litres    Range 26.7 billion km (30 days at full power)
MK1 Eplison Shield Generator (2)     Recharge Time 428 seconds (0.2 per second)

MK2 12cm Laser (4)    Range 240,000km     TS: 12,500 km/s     Power 4-5     RM 60,000 km    ROF 5       
MK3 Quad Gauss Turret (10x20)    Range 50,000km     TS: 40000 km/s     Power 0-0     RM 50,000 km    ROF 5       
MK3 Laser Targeting System (1)     Max Range: 480,000 km   TS: 10,000 km/s     98 96 94 92 90 88 85 83 81 79
MK3 Gauss Targeting System (1)     Max Range: 150,000 km   TS: 40,000 km/s     93 87 80 73 67 60 53 47 40 33
MK1 Warship Fusion Reactor (3)     Total Power Output 24    Exp 5%

MK3 Large Military Active Detection System (1)     GPS 18000     Range 149.1m km    Resolution 100
MK3 Military Missile Detection System (1)     GPS 180     Range 32.1m km    MCR 2.9m km    Resolution 1
MK4 Military Thermal Sensor (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km
MK3 Military EM Detection System (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km

ECCM-2 (1)         ECM 20

The Ryujo class was created to accommodate for new standardized warship speed of 10,000 km/s. Previous carriers had only gone 8,000 km/s, but this speed was unable to keep up with enemy and even IJN vessels. The Ryujo class came about the same time as the A9D class Bomber. She has limited point defense weapons, as previous encounters with Precursors proved that ships without point defense were very vulnerable.

Ryujo class Carrier      40,000 tons       886 Crew       9,302.2 BP       TCS 800    TH 8,010    EM 6,000
10012 km/s      Armour 8-104       Shields 200-428       HTK 221      Sensors 90/90/0/0      DCR 262      PPV 42.24
Maint Life 1.10 Years     MSP 3,702    AFR 582%    IFR 8.1%    1YR 3,078    5YR 46,165    Max Repair 2002.5 MSP
Hangar Deck Capacity 10,000 tons     Magazine 1,176   
Kaigun-Daisa    Control Rating 3   BRG   ENG   PFC   
Intended Deployment Time: 12 months    Flight Crew Berths 200    Morale Check Required   

Magnetic Fusion Drive  EP4005.00 (2)    Power 8010    Fuel Use 43.71%    Signature 4005    Explosion 18%
Fuel Capacity 3,082,000 Litres    Range 31.7 billion km (36 days at full power)
MK1 Eplison Shield Generator (4)     Recharge Time 428 seconds (0.5 per second)

MK3 Quad Gauss Turret (8x20)    Range 50,000km     TS: 40000 km/s     Power 0-0     RM 50,000 km    ROF 5       
MK3 Gauss Targeting System (1)     Max Range: 150,000 km   TS: 40,000 km/s     93 87 80 73 67 60 53 47 40 33

MKI Samurai ASM (147)    Speed: 105,000 km/s    End: 2.5m     Range: 15.7m km    WH: 16    Size: 8    TH: 350/210/105

MK3 Military Missile Detection System (1)     GPS 180     Range 32.1m km    MCR 2.9m km    Resolution 1
MK3 Large Military Active Detection System (1)     GPS 18000     Range 149.1m km    Resolution 100
MK4 Military Thermal Sensor (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km
MK3 Military EM Detection System (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km

ECM 30

The Mogami class Destroyer is fitted with a powerful anti warship spinal mount weapon. She is an black sheep in the IJN inventory.

Mogami class Destroyer      12,000 tons       338 Crew       3,964.4 BP       TCS 240    TH 2,400    EM 3,000
10000 km/s      Armour 10-46       Shields 100-428       HTK 90      Sensors 90/90/0/0      DCR 124      PPV 36.68
Maint Life 1.18 Years     MSP 825    AFR 288%    IFR 4.0%    1YR 603    5YR 9,040    Max Repair 600 MSP
Kaigun-Chūsa    Control Rating 1   BRG   
Intended Deployment Time: 12 months    Morale Check Required   

Magnetic Fusion Drive  EP1200.00 (2)    Power 2400    Fuel Use 56.09%    Signature 1200    Explosion 16%
Fuel Capacity 994,000 Litres    Range 26.6 billion km (30 days at full power)
MK1 Eplison Shield Generator (2)     Recharge Time 428 seconds (0.2 per second)

MKI Spinal Mount Laser (1)    Range 420,000km     TS: 12,500 km/s     Power 6-6     RM 70,000 km    ROF 5       
MK3 Quad Gauss Turret (6x20)    Range 50,000km     TS: 40000 km/s     Power 0-0     RM 50,000 km    ROF 5       
MKIV Anti-Ship Laser Targeting System (1)     Max Range: 600,000 km   TS: 10,000 km/s     98 97 95 93 92 90 88 87 85 83
MK3 Gauss Targeting System (1)     Max Range: 150,000 km   TS: 40,000 km/s     93 87 80 73 67 60 53 47 40 33
MK1 Warship Fusion Reactor (1)     Total Power Output 8    Exp 5%

MK3 Military Missile Detection System (1)     GPS 180     Range 32.1m km    MCR 2.9m km    Resolution 1
MK3 Large Military Active Detection System (1)     GPS 18000     Range 149.1m km    Resolution 100
MK3 Military EM Detection System (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km
MK4 Military Thermal Sensor (1)     Sensitivity 90     Detect Sig Strength 1000:  75m km

ECCM-2 (1)         ECM 20

The Tamanami Missile Frigate is a light warship for providing alpha strike salvos. In the simulation, they were able to destroy two Binja battleships.

Tamanami class Missile Frigate      10,000 tons       328 Crew       2,285.4 BP       TCS 200    TH 2,000    EM 1,500
10000 km/s      Armour 7-41       Shields 50-428       HTK 78      Sensors 0/0/0/0      DCR 6      PPV 60
Maint Life 2.30 Years     MSP 857    AFR 133%    IFR 1.9%    1YR 220    5YR 3,306    Max Repair 500 MSP
Magazine 354   
Kaigun-Chūsa    Control Rating 1   BRG   
Intended Deployment Time: 12 months    Morale Check Required   

Magnetic Fusion Drive  EP1000.00 (2)    Power 2000    Fuel Use 61.44%    Signature 1000    Explosion 16%
Fuel Capacity 916,000 Litres    Range 26.8 billion km (31 days at full power)
MK1 Eplison Shield Generator (1)     Recharge Time 428 seconds (0.1 per second)

MK2 Size 6.00 Missile Launcher (10)     Missile Size: 6    Rate of Fire 15
MK2 Missile Targeting System (1)     Range 56.3m km    Resolution 100
MKIV Dragon ASM (59)    Speed: 90,000 km/s    End: 1.3m     Range: 6.8m km    WH: 16    Size: 6    TH: 330/198/99

ECM 20

The Kamikaze class Missile Frigate is a missile defense system. Only armed with anti-missile missiles. Designers question the lack of an Anti-Missile Detection System.

Kamikaze class Missile Frigate      10,000 tons       307 Crew       2,614.9 BP       TCS 200    TH 2,000    EM 3,000
10000 km/s      Armour 7-41       Shields 100-428       HTK 90      Sensors 0/0/0/0      DCR 104      PPV 30
Maint Life 1.48 Years     MSP 653    AFR 200%    IFR 2.8%    1YR 334    5YR 5,003    Max Repair 500 MSP
Magazine 324   
Kaigun-Chūsa    Control Rating 1   BRG   
Intended Deployment Time: 12 months    Morale Check Required   

Magnetic Fusion Drive  EP1000.00 (2)    Power 2000    Fuel Use 61.44%    Signature 1000    Explosion 16%
Fuel Capacity 855,000 Litres    Range 25 billion km (28 days at full power)
MK1 Eplison Shield Generator (2)     Recharge Time 428 seconds (0.2 per second)

MKI Anti-Missile Missile Launcher Pod (30)     Missile Size: 1    Rate of Fire 5
MKI AMM Targeting System (1)     Range 98.9m km    Resolution 1

ECCM-3 (1)         ECM 30

The Yudachi is a missile ship of the line with few gauss turrets for self defense against Precursor missiles. The gauss turrets are antiquated make with out of date tracking speeds.

Yudachi class Missile Destroyer      15,000 tons       453 Crew       4,014.6 BP       TCS 300    TH 3,053    EM 3,000
10175 km/s      Armour 7-54       Shields 100-428       HTK 108      Sensors 0/0/0/0      DCR 47      PPV 75.84
Maint Life 1.41 Years     MSP 1,170    AFR 257%    IFR 3.6%    1YR 645    5YR 9,682    Max Repair 763.125 MSP
Magazine 648   
Kaigun-Chūsa    Control Rating 1   BRG   
Intended Deployment Time: 12 months    Morale Check Required   

Magnetic Fusion Drive  EP1526.25 (2)    Power 3052.5    Fuel Use 54.54%    Signature 1526.25    Explosion 16%
Fuel Capacity 1,089,000 Litres    Range 24 billion km (27 days at full power)
MK1 Eplison Shield Generator (2)     Recharge Time 428 seconds (0.2 per second)

Quad MK2 Gauss Cannon R500-17.00 Turret (3x20)    Range 50,000km     TS: 32000 km/s     Power 0-0     RM 50,000 km    ROF 5       
MK3 Gauss Targeting System (1)     Max Range: 150,000 km   TS: 40,000 km/s     93 87 80 73 67 60 53 47 40 33

MK2 Size 6.00 Missile Launcher (10)     Missile Size: 6    Rate of Fire 15
MK2 Missile Targeting System (1)     Range 56.3m km    Resolution 100
MKIV Dragon ASM (108)    Speed: 90,000 km/s    End: 1.3m     Range: 6.8m km    WH: 16    Size: 6    TH: 330/198/99

MK3 Large Military Active Detection System (1)     GPS 18000     Range 149.1m km    Resolution 100
MK3 Military Missile Detection System (1)     GPS 180     Range 32.1m km    MCR 2.9m km    Resolution 1

Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s

This design is classed as a Military Vessel for maintenance purposes
This design is classed as a c for auto-assignment purposes

A9D class Bomber is the heavy bomber of the Navy. Each are equipped with two MKI Samurai ASMs.

A9D class Bomber      500 tons       17 Crew       236.4 BP       TCS 10    TH 405    EM 0
40575 km/s      Armour 1-5       Shields 0-0       HTK 4      Sensors 0/0/0/0      DCR 0      PPV 2.4
Maint Life 0.45 Years     MSP 35    AFR 100%    IFR 1.4%    1YR 78    5YR 1,163    Max Repair 202.5 MSP
Magazine 16   
Kaigun-Chōsa    Control Rating 1   
Intended Deployment Time: 1 days    Morale Check Required   

MKII Fighter Magnetic Fusion Drive EP405.00 (1)    Power 405    Fuel Use 848.53%    Signature 405    Explosion 30%
Fuel Capacity 55,000 Litres    Range 2.34 billion km (16 hours at full power)

MKI Bomber Missile Pod (2)     Missile Size: 8    Hangar Reload 141 minutes    MF Reload 23 hours
MK1 Fighter Missile Targeting System (1)     Range 52.3m km    Resolution 80
MKI Samurai ASM (2)    Speed: 105,000 km/s    End: 2.5m     Range: 15.7m km    WH: 16    Size: 8    TH: 350/210/105

The A9B is the normal mass produced Bomber of the Navy. She carries MKIV Dragon ASMs.

A9B class Bomber      500 tons       17 Crew       236 BP       TCS 10    TH 405    EM 0
40534 km/s      Armour 1-5       Shields 0-0       HTK 2      Sensors 0/0/0/0      DCR 0      PPV 2.7
Maint Life 0.12 Years     MSP 10    AFR 100%    IFR 1.4%    1YR 83    5YR 1,238    Max Repair 202.5 MSP
Magazine 18   
Kaigun-Chōsa    Control Rating 1   
Intended Deployment Time: 1 days    Morale Check Required   

MKII Fighter Magnetic Fusion Drive EP405.00 (1)    Power 405    Fuel Use 848.53%    Signature 405    Explosion 30%
Fuel Capacity 43,000 Litres    Range 1.83 billion km (12 hours at full power)

Size 6.00 Box Launcher (3)     Missile Size: 6    Hangar Reload 122 minutes    MF Reload 20 hours
MK1 Fighter Missile Targeting System (1)     Range 52.3m km    Resolution 80
MKIV Dragon ASM (3)    Speed: 90,000 km/s    End: 1.3m     Range: 6.8m km    WH: 16    Size: 6    TH: 330/198/99

The A9M and A9H are the medium and heavy fighters of the navy. Each are equipped with railgun armaments for point defense or swarming tactics.

A8M class Fighter      500 tons       25 Crew       367.1 BP       TCS 10    TH 405    EM 0
40554 km/s      Armour 1-5       Shields 0-0       HTK 4      Sensors 0/0/0/0      DCR 0      PPV 0.98
Maint Life 0.05 Years     MSP 5    AFR 100%    IFR 1.4%    1YR 91    5YR 1,368    Max Repair 202.5 MSP
Kaigun-Chōsa    Control Rating 1   
Intended Deployment Time: 1 days    Morale Check Required   

MKII Fighter Magnetic Fusion Drive EP405.00 (1)    Power 405    Fuel Use 848.53%    Signature 405    Explosion 30%
Fuel Capacity 42,000 Litres    Range 1.78 billion km (12 hours at full power)

MK2 Fighter Cannon (1)    Range 20,000km     TS: 40,554 km/s     Power 0-1     RM 20,000 km    ROF 5       
MK3 Fighter Cannon Targeting System (1)     Max Range: 120,000 km   TS: 40,000 km/s     92 83 75 67 58 50 42 33 25 17
MK1 Fighter Fusion Reactor (1)     Total Power Output 1    Exp 5%

MK1 Fighter Missile Detection System (1)     GPS 28     Range 11.2m km    MCR 1m km    Resolution 1

A8H class Interceptor      500 tons       26 Crew       343.9 BP       TCS 10    TH 405    EM 0
40575 km/s      Armour 1-5       Shields 0-0       HTK 3      Sensors 0/0/0/0      DCR 0      PPV 1.65
Maint Life 0.06 Years     MSP 5    AFR 100%    IFR 1.4%    1YR 90    5YR 1,347    Max Repair 202.5 MSP
Kaigun-Chōsa    Control Rating 1   
Intended Deployment Time: 1 days    Morale Check Required   

MKII Fighter Magnetic Fusion Drive EP405.00 (1)    Power 405    Fuel Use 848.53%    Signature 405    Explosion 30%
Fuel Capacity 54,000 Litres    Range 2.3 billion km (15 hours at full power)

MK2 Dual Fighter Cannon (1x2)    Range 20,000km     TS: 40,575 km/s     Power 1-1.5     RM 20,000 km    ROF 5       
MK3 Fighter Cannon Targeting System (1)     Max Range: 120,000 km   TS: 40,000 km/s     92 83 75 67 58 50 42 33 25 17
MK1a Fighter Fusion Reactor (1)     Total Power Output 1.5    Exp 5%

August 21st, 2136
Earth, Sol System

Written by: Secretary Nozara Yukimori

Attempted coup by irresponsible generals violently crushed. All ring leaders shot.

November 20th, 2117
Luyten's Star

Written by: Nitohei Shen Hai of the Luyten's Star Expeditionary Army, 14th Division, 1st Imperial Armored Regiment

Imperial forces arrived on Luyten's Star seven years ago. The first attack was repelled by the Rakhas horde within two days. No one survived. The admiralty and the rest of High Command gave the brave soldiers a speech about their 'noble' sacrifice to the Empire. The soldiers must have been felt like the speech was their funeral oration. This assault seems more promising as the 1st, 2nd and 5th Armored Regiments have made breakthrough of the Rakhas line. 1st Armored Regiment pushed through the northern sector and after three hours of intense combat saw an opportunity to continue an advance. The commanding officer, Rikugun-Chūsa Tono Mio, was granted permission to continue the assault since the divisional commander was killed yesterday. Unfortunately for the Rakhas, the Cobra-2 Main Battle Tank was designed to penetrate heavy armor with its twin-linked autocannons. Meanwhile, the Rakhas infantry was swept up by the Anaconda IFVs (armed with high caliber anti-personnel weapons) which gave the tank crews breathing room. Overhead, A9C Ground Support Fighters were laying suppressive close air supports. Lost only two of them so far, for once the Navy is helping the Army.

Right now, the 1st Armored Regiment is waiting a few more hours before the next push... I write this memoir to let you know: Luyten's Star is not yet lost.

This is a collection of stories gathered from the Imperial Japanese Navy and Army. A narrative heavy and after action report light board. These are short and sweet vignettes of combat encounters. I can post ship designs and ground forces in a separate thread if requested. Anyone can post commentary, thoughts, or feedback in the comments thread.