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YF-21 Fighter with Fold Booster (FAST Packs)


GV-17L Stealth Gun Pod (closed mode shown)


Internal Micro-Missiles

General Galaxy YF-21 Fold Booster (with FAST Packs)

Technical Data

Equipment Type: UNAF/UNS prototype main advanced variable fighter
Government: U.N. Air Force, U.N. Spacy
Manufacturer: General Galaxy
Introduction: 2034
Operational Deployment: 2039
Accommodation: pilot only in General Galaxy/Marty & Beck specially-developed g-endurance zero/zero ejection seat (pilot wears Tactical Life Support System with upper and lower g-suits and pressure breathing); YF-21 No. 2 features completely shielded, pressurized cockpit (minimal external view through overhead spherical canopy/two side panels)
Dimensions:
  • Battroid Mode: unknown, estimated height 15.5 meters
  • Fighter Mode: wingspan 15.36; height 4.04 meters; length 19.62 meters
  • GERWALK Mode: wingspan 15.36 meters
    Mass: empty 9.55 metric tons; max T-O mass in atmosphere 39.207 metric tons; max lift-off mass in space with fold booster 48.305 metric tons
    Structure: SWAG energy conversion armor, stealth composition.
    Power Plant: two Shinnakasu Industry/P&W/Roice FF-2450B thermonuclear engines.
    Propulsion: 41,200 kg [x g] x 2 class maximum instantaneous thrust in atmosphere (65,200 kg [x g] x 2 class in space) (639.61 kN x 2 in space); engines utilize air as coolant/propellant in atmosphere, but problems with cooling efficiency (attributed to exceeding output and melting the core) limit maximum thrust to 40% to 60% of thrust in space; 2 x three-dimensional independent convergent/divergent turning exhaust nozzle vanes; 4 x dorsal sub-nozzles above main exhaust nozzles; 2 x banks of pivoting slit nozzles (ventral fuselage) for GERWALK mode VTOL; many x P&W HMM-6J high-maneuverability vernier thrusters.
    Performance:
  • Fighter Mode: cruise speed Mach 1.75; max cruise speed at 10,000-21,500 m Mach 5.06 [Mach 5.06+]; max crusie speed at 30,000+ m Mach 21+ [Mach 24+ (8.1 km/sec)]; max rate of climb at S/L 61,500 meters/minute.
    g limit: +32.5/- 17.2
    Design Features: 3-mode variable transformation; variable camber wing; enhanced version Quimeliquola Queadluun-Rau special inertia vector control system; two flight configuration modes (cruise and high speed) achieved via varying the cant of wing/tail surfaces; vertical take-off and landing (VTOL); supersonic cruise and maneuvering in region of Mach 5.0+ below the stratosphere; three-dimensional thrust vectoring with three exhaust nozzle flaps on each engine (independent pivot); capable of attaining unassisted orbital velocity over an Earth-class planet; brainwave control system (BDS); brain direct image system (BDI); 2 x arm shields/trapezoidal combined variable-cant tail stabilizing surfaces; internal launchers for micro-missile weaponry (central dorsal section); fighter-scale pin-point barrier system (PPB); active stealth system; transformation mechanism factors into high performance as shown in simulated combat against the YF-19; soles of the feet contain nozzles for VTOL for Battroid and GERWALK modes; 6 x multi-mode sensors (one on the top, one on the bottom and four on the sides of the nose); 1 x special equipment hard point station for optional 1 x Shinnakasu Industry/OTEC FBF-1000A external prototype fighter fold booster (not certified for performing folds beyond a one-way limit of 20 light years); optional 4 x all-environment FAST Pack weapon packs with micro-missiles (two mounted ventral fuselage in fighter mode, on leg storage bay cover panels in GERWALK/Battroid modes; two mounted on rear stabilizers in fighter mode, on lower arms in GERWALK/Battroid mode).
    - Armament -
    Guns:
  • 1 x fixed rear Erlikon AAB-7(.5) super-miniature anti-aircraft laser turret (mounted center dorsal section in Fighter/GERWALK mode, becomes head turret in Battroid mode)
  • 2 x semi-fixed internal Mauler REB-22 laser beam guns featuring forward/rearward barrels (mounted underneath tail stabilizers in Fighter mode, lower arms in GERWALK/Battroid modes)
  • 2 x Howard/General GV-17L new standard cartridge-less Gatling gun pods featuring retractable grip/stealth covers in Four hard point weapon stations (mounted left/right ventral fuselage in Fighter mode or leg storage bay cover panels and/or manipulators in GERWALK/Battroid modes)
  • 1 x fixed Howard PBS-03F fighter-carried pin-point barrier system (due to engine output restrictions the pin-point barrier can only be used in Battroid mode)
  • 2 x arm shields (tail stabilizers in fighter mode, lower arm in GERWALK/Battroid modes); function in concert with barrier system
    Bombs & Missiles:
  • 4 x internal Bifors BML-02S YF-21-exclusive all-environment rapid-fire micro-missile launchers featuring exit ports from forward dorsal section to the sides of the engine nacelles (mounted in central dorsal section).
    Optional Armament:
  • 4 x hard point weapon stations for all-environment FAST Pack weapon packs with micro-missiles (mounted on arm/tail and hip/underside panels) each capable of equipping 4,000 kg.

  • Description and History

    Decades after discovery in 1999, research and countless trials achieved for humanity not only mastery of OverTechnology but significant improvement and miniaturization. One of the most significant advances made by the UNG was development of the small-scale fold system. UNG scientists discovered it was still possible to create fold reactions utilizing miniaturized hardware and thus built a small-scale fold device to displace a space vehicle such as a fighter through super dimension space, allowing interstellar travel. Unfortunately this miniaturized fold system was not small enough to be internalized for a variable fighter and so lead to development of the fold booster, a separate unit to be externally mounted upon a fighter-sized spacecraft. The fold booster was not without limitations and was not certified beyond a one-way limit of 20 light years for reasons of safety. Despite the disadvantages, the fold booster was an excellent new technology enabling the UN Spacy to deploy variable fighter spacecraft across interstellar distances without the need for a carrier vessel.

    Fold Booster technology was developed in the late 2030's and most of the newly developed variable fighters were designed with hard point stations to externally mount fold hardware. The YF-19 and YF-21 developed in the Project Super Nova AVF competition were both designed to operate optional fold boosters and the VF-17D Nightmare special operations variable fighter was also able to field fold hardware.

    Production Notes

    Debut: Macross Plus, Episode 3
    Pilot(s): Guld Bowman
    Other appearances: Macross Plus Movie
    Original mechanical designer: Shoji Kawamori

    Line Art

  • fighter mode (with Fold Booster and FAST Packs) rear view
  • early fold booster details
  • Information Courtesy of the Macross Compendium: www.macross.anime.net/wiki/Main_Page
    Images From - This Is Animation Special Macross Plus and other macross books
    C. Wilson - Writer, Editor and Colorist