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VF-31A Battroid mode


VF-31A GERWALK mode


VF-31A Fighter mode


VF-31A Fighter schematics


LU-18A Beam Gun Pod

Surya Aerospace VF-31A Kairos/Siegfried

Technical Data

Equipment Type: variable fighter
Affiliation: Chaos
Manufacturer: Surya Aerospace
Introduction: unknown
Operational Deployment: unknown
Accommodation: pilot with Shinsei/LAI EX-Gear EGP-03/05; rear auxiliary seat; pilot maintains posture as the cockpit remains horizontal within the chest block unlike conventional variable fighters with more sophisticated transformation mechanisms
Dimensions:
  • Battroid Mode: height 15.33 meters (without laser guns)
  • Fighter Mode: wingspan 13.7 meters; height 3.85 meters; length 19.31 meters
  • GERWALK Mode: unknown
  • Mass: empty (without multipurpose container) 8.250 metric tons
    Structure: Sentinel SWGA-F20B Energy Conversion Armor system
    Power Plant: two Shinsei Industry/ P&W/ RR FF-3001A Stage IIC thermonuclear reaction turbine engines
    Propulsion: 2 x 1,645 kN (maximum thrust in space), in atmosphere, air is used as a propellant for unlimited flight range; many x P&W HMM-10 High maneuverability verniers
    Thrust-to-weight ratio: (empty, without container) 40.65
    Performance:
  • Fighter Mode: at 10,000 m Mach 5.5, maximum speed due to heat-resistance limit of the fuselage
  • Maximum Airframe Design Load: 28.0G (when ISC operates, the aircraft, cockpit and equipment is protected from high G)
    Design Features: 3-mode variable transformation; delta wing configuration; thrust reverser equipped with three-dimensional maneuvering nozzles; Vortex Flow Controller (VFC) primarily for high-altitude maneuverability at low-speeds when small amounts of gases flow to the aircraft surface reducing the aircraft resistance (drag) by delaying the occurrence of strake vortexes; unlimited ceiling capable of launching into satellite orbit without special equipment; Shinsei/LAI ISC-TO21C ISC (Inertia Store Converter); Bifors ECS-09A Active Stealth system; LAI CCFD-11 Chaff/Flare/Smoke Discharger system; AERIAL II flight support AI; sensor windows (mounted on the dorsal surface of the nose); multipurpose container; radome is rotated when nose tip rotates during Battroid transformation; arms can be deployed in Fighter mode; enlarged canard wings to compensate for aerodynamic center toward the aft of aircraft (VF-31A); option of fold booster; option of super parts
    - Armament -
    Guns:
  • 1 x fixed Mauler ROV-127E 12.7mm anti-air beam machine gun (mounted center dorsal section in Fighter/GERWALK mode, becomes head turret in Battroid mode)
  • 1 x Howard LU-18A beam gunpod; previous variable fighters were equipped with projectile gunpods, but because the VF-31 engine output has increased it is equipped with a standard high-output beam gunpod (mounted ventral fuselage in Fighter mode, in arm manipulator for Battroid mode, gunpod moves to the dorsal side and acts as a turret in GERWALK mode)
  • 2 x fixed Remington LM-27s 27mm mini gunpod rail gun, exposing the muzzle during use in FIghter mode, gunpods are stored facing backwards but rotate forward from the support point base in GERWALK/Battroid mode (mounted on the ventral side of the fuselage in Fighter mode, upon the arms in GERWALK/Battroid modes)
  • 2 x anti-projectile shields made from Energy Conversion Armor (mounted one on each forearm in GERWALK/Battroid mode, part of the wing surface in Fighter mode)
  • 2 x Ka-Bar OTEC AK/VF-M11 Assault knives, knife edge composed of super alloy (can be reinforced with pin-point barrier) for close combat in GERWALK/Battroid modes (folds and is stored behind elbow shields in GERWALK/Battroid modes)
  • 1 x OTEC VPB-S24 pin-point barrier system
  • 2 x engine surface launchers (mounted dorsal rear fuselage in Fighter mode, calf section of legs in Battroid mode)
  • 1 x multipurpose container system located at the rear in Fighter and GERWALK modes and unfolds behind the head turret in Battroid mode (mounted in center rear fuselage when stowed, deployable in all 3 modes utilizing built-in articulating mount)
  • Bombs & Missiles:
  • 2 x Bifors CIMM-3B micro-missile launchers with 36 micro-missiles (mounted right/left ventral rear fuselage in Fighter mode, lower legs in GERWALK/Battroid modes)
  • Optional Armament:
  • Super Pack system for space warfare, adds booster and propellant tank (equipped on the wings); features armor (dorsal fuselage and ventral engines in Fighter mode, chest and legs in Battroid mode) and micro-missile containers

  • Description and History

    The VF-31A Kairos is a state-of-the-art all-environment variable fighter built by Surya Aerospace. Lead by Shinsei Industries, Surya Aerospace is a joint venture formed from four companies that include L.A.I. (Legodt & Angeloni Industries), Hiotori Aerospace Industries Ltd. (possibly also translated as Feifeng Aerospace) and Bharat. Surya Aerospace both designed and manufactures the VF-31 Kairos variable fighter. In the era of the VF-1 Valkyrie it was assumed that a Battroid could infiltrate and freely move within an enemy warship with the potential to control or destroy its central command. The VF-19 Excalibur and later variable fighters (VFs) have increased in firepower and it has become expected such modern VFs use an optional Fold booster to bypass enemy fleets and defense lines, delivering the aerospace craft directly to the enemy command center. Unlike Δ (Delta) Squadron's VF-31 craft, the VF-31A Kairos is used for pure combat and does not have equipment necessary to support 'Walküre'. The VF-31A and VF-31B are mass production variants, operated by Chaos's ɑ (Alpha), β (Beta) and γ (Gamma) squadrons. Notable features of the VF-31A Kairos include a delta wing main wing design, a pair of fixed rail guns, a beam gunpod in contrast to the traditional projectile gunpod and a rare cockpit design that does not reorient vertically for Battroid mode.

    Note: The name Kairos (καιρός) refers to "time" in ancient Greek, specifically meaning "right, critical or opportune moment". It is one of two words in Greek for "time", the other being Chronos (χρόνος). Kairos refers to a proper or opportune time for action while Chronos refers to chronological or sequential time.

    Additional Trivia: During a live event, creator Shoji Kawamori confirmed the VF-31 is a update to the YF-30 Chronos that appeared in the 2013 PlayStation 3 video game "Macross 30: Ginga o Tsunagu Utagoe".

    Production Notes

    Debut: Macross Delta, Episode 2
    Pilot(s): no notables
    Other appearances: none
    Original mechanical designer: Shoji Kawamori

    Line Art

  • battroid mode art (drawn line art)
  • head unit art (drawn line art)
  • Information Courtesy of the Macross Compendium: www.macross.anime.net/wiki/Main_Page
    Additional Information Courtesy of the Wikipedia Japan: https://ja.wikipedia.org/
    Images From - Macross Variable Fighter Designers Note, Macross Modelers Vol. 1 pamphlet, and Macross Delta: Gekijyou No Walkure pamphlet
    C. Wilson - Writer, Editor and Colorist