"It may be unmanned, but it's still a very powerful bomber."

The MQ-90 Quox is an unmanned combat aircraft developed by the Japan Air Self-Defense Force. Its design was created by Heijiro Yamamoto, based on the ASF-X Shinden II.

The MQ-90 first appeared as the Q-X in Ace Combat: Ikaros in the Sky, but it was later renamed and prominently featured in Ace Combat Infinity.


MQ-90 Quox Development Blueprint

Development blueprints of the MQ-90

The MQ-90 uses an "aggressive aerodynamic design",[1] based on the ASF-X Shinden II, with a tailless W-wing configuration. The main wings appear to take up most of the MQ-90's planar design, and it has been noted to look like a bat.[2] The wings are split into multiple moving blades, which can retract or extend depending on the situation. This design allows the MQ-90 to maintain stable long-term flight or make extreme maneuvers in battle by manipulating the blades. Operating the left and right blades asymmetrically can even produce lift while turning, without the risk of stalling.[2]

The MQ-90 has an air intake in the center of its nose, sporting a shock cone. The rear features another air intake, which results in a reduced risk of stalling. The MQ-90's engine is the same F110 used on the F-2A. Since the MQ-90 does not have a cockpit, the engine occupies nearly the entire length of the fuselage. Despite the aggressive design, the MQ-90 is incapable of supersonic cruising. It can achieve supersonic speeds, but its design emphasis was placed on subsonic speed.[2]

A GAU-19 machine gun sits to the left of the MQ-90's nose. An Electro-Optical Targeting System (EOTS) and other radar equipment sits to the right.[2] This equipment uses state-of-the-art GPS technology to navigate.[1] The weapon bays normally hold AAM-4 air-to-air missiles,[2][note 1] but they can also carry air-to-ground weapons as well.[1]


Assault Horizon universe

We've still got some work for you, too, so don't slack off now.
This article or section is a stub. You can help by expanding it.

The MQ-90 was jointly developed by the JASDF and the United States Air Force in the Assault Horizon universe.[3]

Infinity universe

In the Infinity universe, the MQ-90 was developed solely by the JASDF. It was exported to the United States and other American countries by the 2010s.[1]

At some point, a number of MQ-90s were stolen and modified with Wernher Noah technology. The GPS navigation system was replaced by a top-secret control relay system, for use by the QFA-44 Camilla. These modified MQ-90s were then used in a terrorist attack against Tokyo and the UNF Pacific Fleet stationed in Tokyo Bay. The United Nations Security Council believed Wernher themselves were responsible, but Wernher denied any involvement.[1] The modified MQ-90s were later used to defend Excalibur when it was hijacked by the USEA Federation.[4]

Another batch of stolen MQ-90s were further modified with the addition of a Tactical Laser System. These were known as MQ-90L Quox bis, and used to defend the QFA-44 when it entered battle directly.[5]




  1. The ASF-X Shinden II uses the AAM-4 model for its 6AAMs in both Ace Combat: Assault Horizon and Infinity.


  1. 1.0 1.1 1.2 1.3 1.4 1.5 Debriefing following Lost Butterfly, Ace Combat Infinity.
  2. 2.0 2.1 2.2 2.3 2.4 Description of the aircraft on File:MQ-90 Quox Development Blueprint.jpg.
  3. Ace Combat: Ikaros in the Sky.
  4. Excalibur Onslaught I, II, III, and IV, Ace Combat Infinity.
  5. Far Eastern Front, Ace Combat Infinity.
  6. Hitler Plays Excalibur Raid in Ace Combat Infinity . YouTube. Published by Ace Combat Fan on October 19, 2016. Retrieved February 22, 2017.
Community content is available under CC-BY-SA unless otherwise noted.