Mikoyan-Gurevich MiM-31 (A,B) "Karyovin"

(Version 1.01 - Last updated: 06/21/03)
Background and RPG stats by Kenneth Olson
Based off a design shown in Robotech Episode 33 "Rainy Night"
Artwork from Wildstorm Source Book #1


The Mikoyan Gurevich MiM-31 was designed in the early 1990's to replace both the Mig-29 air superiority fighter and the SU-39 ground attack bomber.  The resultant fighter incorporated a new delta wing design with wing tipped veritech stabilizers and forward canard wings to provide agility at all altitudes and produce a fighter which was capable of flying head to head against any of the contemporary Western Alliance fighters, such as the F-16, F/A-18, and the F-15.  The initial flight of the MiM-31 occurred on November 15 1991 and proved so successful that the Soviet Air Force ordered the MiM-31 into full production the following month.

The aircraft was designed around the massive 35mm GSH-35 gatling gun mounted underneath the main fuselage.  This weapon is capable of punching through the armor of most tanks and provided the MiM-31 with fearsome air-to-ground capabilities.  In addition to the GSH-35 cannon, the fighter is capable of mounting up to 8,400 kg of external ordinance, including precision laser or TV guided weaponry.  The fighters air-to-air capability was provided by six wing hard points capable of mounting up to twelve short range AA-11 "Archer" or six long range AA-12 "Adder" missiles. 

With the opening shots of the Global Civil War in January of 1992, the design team at Mikoyan Gurevich was pressured to bring the production lines of the MiM-31 up to wartime capacity.  The first combat squadrons were formed in the summer of 1992 and immediately placed into combat.  The MiM-31 showed that it had no equal in its ground attack role, capable of destroying entire units and possessing the speed to escape from any pursuit.  For the first couple of months of the global conflict the Karyovin, proved to itself equal to all Western air superiority fighters; although, this parity was short lived as the MiM-31 was outclassed with the introduction of the  F-203 Dragon II.  Nevertheless, the design was sufficiently successful that the MiM-31 was produced in vast quantities, with almost 7,500 units produced in the Soviet Union and Allied Eastern Co-Prosperity States during the Global Civil War.

After the crash of the SDF-1 and subsequent end of the Global Civil War, the newly formed Eastern Block Soviet Independent States (EBSIS) were able to acquire key technologies from the crash site.  This allowed EBSIS engineers provide the aircraft with advanced titanium alloys which provided greater protection from enemy weaponry and also resulted in new advanced turbojet designs with vastly improved fuel economy and thrust to weight ratios over the older models.  The newly designed MiM-31B entered into production in 2010 and along with the S-37 "Berkut" was to be the EBSIS's primary frontline fighter for the next two decades.

For much of the First Robotech War, the MiM-31 saw little combat action, as the EBSIS tried to stay out of the battle; however, the bombardment of the Earth by Zentraedi forces in 2011 destroyed nearly 80% of the entire EBSIS Air Force.  Although EBSIS industry was shattered by the bombardment, new models of the MiM-31 were rolling off the production lines outside the Ural Mountains six months later.  In the interim years between the end of the First and beginning of the Second Robotech Wars, EBSIS provided equipment to almost every unaligned state outside the United Earth Government in addition to some malcontent Zentraedi groups.  Although no MiM-31 are known to have been used directly by the Zentraedi, several mercenary groups based in the Merchant Republic of South America which fly MiM-31 are known to have been hired by renegade Zentreaedi.  These missions on several occasions pitted the MiM-31 against VF-1 veritech fighters flown by the Robotech Defense Force (RDF), an encounter which the MiM-31 rarely won unless the odds were greater than 4 to 1 against the VF-1.

By the beginning of the Second Robotech War, the EBSIS airforce had 2,100 MiM-31 of all models.  As during the First Robotech War, during the conflict with the Robotech Masters EBSIS forces tried to stay on the sidelines to save themselves for the battle with the Armies of the Southern Cross (ASC) that they were sure to come at the war's conclusion.  At the war's conclusion in August of 2030, the ASC were in such a depleted state that EBSIS had became the dominate power on the planet without a shot fired.   On 1-March 2033 EBSIS forces crossed into Germany thus beginning the Second Global Civil War.  MiM-31's were among the first combat aircraft into United Earth Government airspace.  EBSIS forces quickly established air-superiority and looked to lake over all of Europe;  however their plans soon came undone, when the Invid attacked on 15-March 2033 routing most of the EBSIS forces and completely destroying all of their conventional aircraft.


Vehicle Type: MiM-31 "Karyovin"
Class: Air superiority and strike aircraft
Manufacturer: Mikoyan-Gurevich OKB
Crew: One Pilot
Service History:
MiM-31A: Single seat air superiority aircraft, served with the USSR from 1992-2010, Eastern Co-Prosperity Sphere from 1992-2007, and later with the Eastern Block Independent States from 2010-2031
MiM-31B:  Single seat air superiority aircraft, served with Eastern Block Independent States from 2010-2031


Location MiM-31 (A) MiM-31 (C)
1 Pilot's Cockpit 30 50
2 Rear Stabilizers (2) 10 each 25 each
2 Wings (2) 20 each 50 each
Engines (2) 20 each 35 each
Ventral 35mm Cannon 10 25
1 Main Body 40 80


  1. Destroying the MDC of the main body or the Pilots Compartment will destroy the mecha
  2. Destruction of either of the wings or tails will send the Berkut into and uncontrollable spin


MiM-21 (A):  1100 kph  (Mach 0.9) at sea level and 1900 kph (Mach  1.8) at 30 kft
MiM-21 (B):  1300 kph (Mach 1.05) at sea level and 2200 kph (Mach 2.1) at 30 kft
CRUISE SPEED (max performance without afterburner):
MiM-21 (A):  1000 kph  (Mach 0.94) at 30 kft
MiM-21 (B):  1300 kph (Mach 1.22) at at 30 kft
MiM-21 (A):  150 kph
MiM-21 (B):  140 kph
MiM-21 (A):  19,000 meters per minute
MiM-21 (B):  21,000 meters per minute
MiM-21 (A):  18,000 meters (60 kft)
MiM-21 (B):  20,000 meters (65 kft)
MiM-21 (A):  800 meters
MiM-21 (B):  650 meters
MiM-21 (A):  600 meters with drag chute
MiM-21 (B):  550 meters with drag chute
+10.0 to -5.5 g


16.5 m
10.2 m
6.6 m
MiM-31 (A):  2 x Sarkisov RD-37 turbofan with thrust vectoring nozzles, 69 kN static thrust with 125 kN of afterburner
MiM-31 (B):  2 x Sarkisov RD-39 turbofan with thrust vectoring nozzles, 90 kN static thrust with 157 kN of afterburner
MiM-31 (A):  1,250 US gal (4,732 liters) 
MiM-31 (B):  1,400 US gal (5,300 liters)


  1. (All) 1 x 35MM GSH-35-1 FOUR-BARRELED GATLING GUN:  A single 35 mm cannon is mounted on the ventral side of the MiM-31.  The cannon is capable of firing up to 6,500 rounds per minute with a muzzle velocity in excess of 1250 meters per second.  The cannon is fed from an internal 800 round storage drum.
  2. (All) 6 x BODY/WING HARD POINTS:   Up to  lb (8,340 kg) of external stores can be mounted on three hard points on either wing.  Each hard point can mount up to two short range missiles (such as the AA-8 or AA-11), a single medium range or long range missile (such as the AA-10 or AA-12), or up to 1,200 kg of fuel, equipment or ordinance
  3. 2 x CHAFF/FLARE DECOY DISPENSERS: Two chaff flare decoy dispensers are located in the rear of the aircraft.  Each dispenser can hold up to 30 decoys apiece with the standard load out consisting of  50% chaff bundles and 50% flares.  The type and number of each decoy is triggered manually by the pilot.



Random Hit Locations

When there is an equal chance of hitting both sides from 1D6

When there is a preferred side, roll 1D10







Pilot's Compartment (Main Body) 01-35 01-05 01-20 01-20 01-15
Rear Stabilizers (Wings) 36-40 06-13 21-35 21-25 16-20
Wings (Main Body) 41-60 14-40 36-50 26-60 21-50
Engines (Main Body) 61-70 41-50 51-60 61-65 51-60
35mm Cannon (Main Body) 71-80 51-60 61-75 - 61-80
Main Body 81-00 61-00 76-00 66-00 81-00


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