Cynthia Coffin

Cynthia Bridgitte Fitzgerald using a COFFIN system

Connection For Flight Interface is a type of control system where a human can use an aircraft with their thoughts or body movements. Such aircraft do not feature glass canopies or front windows; instead, sensors on the aircraft's body transmit live pictures of its surroundings to either interior screens or the pilot's mind. The standard neural connection used to develop these systems is the Electro-Neuron-Synapse-Interface (ENSI).[1]

Due to the narrow space in aircraft cockpits equipped with Connection For Flight Interfaces, and the inability to look outside through glass in such cockpits, these aircraft were commonly referred to by slang terms including COFFINs[note 1] (コフィン), Aero Coffins (エアロコフィン), and "flying coffins".[2]



Early developments

20160804 004221 0

The XFA-27's cockpit as depicted in Ace Combat Infinity; notice the lower view

The earliest forms of COFFIN were rudimentary; they only featured exterior cameras that would transmit images onto screens inside the cockpit, and they were still controlled with mechanical buttons and sticks.[2] The XFA-27 was the first aircraft to feature this setup, though it retained a glass canopy and only used cameras below its nose.[3][4]

ADF-01 Infinity Cockpit

The ADF-01 FALKEN's cockpit as depicted in Ace Combat Infinity; notice the lack of mechanical controls

Gründer Industries' ADF-01 FALKEN was the next aircraft to utilize COFFIN. It was the first aircraft to feature a completely-enclosed cockpit with no glass canopy. A sensor array surrounded the cockpit that could receive visible light, infrared light, and radio waves.[5] The cockpit's mechanical controls were replaced with leg- and arm-rests.[6] However, input from the pilot was still in its early form; eye movement and voice commands were required to control the aircraft.[2] This iteration of the ADF-01 FALKEN was first seen in 2011.[7]

As the 2010s progressed, the ADF-01's adaptation of COFFIN was used on other experimental aircraft. This included the XFA-33 Fenrir, XR-45 Cariburn, YR-302 Fregata, and YR-99 Forneus (and its bomber variant, the YRB-89). In particular, the YR-302 featured the first attempt to minimize the COFFIN equipment while maintaining similar combat performance since the airframe's design required regular maintenance.[8] The Aurelian Air Force's experimental test unit, Falco Squadron, had access to prototype versions of the XR-45 and YR-302,[9] and shot down YRB-89s deployed by the Leasath Air Force in the early stages of the Aurelian War in 2020.[10][11] The Leasath Air Force's Alect Squadron flew multiple Fenrirs at the end of the war,[12] and Aurelia later reproduced them.[13][14]

Full adoption

Standardized ENSI Cockpit

The XR-900 Geopelia's cockpit with ENSI sensors

Eye movement and voice commands were the only way to control COFFIN aircraft until at least 2020.[2] Sometime in the 2020s, the ENSI standard for COFFIN control was developed, and most aircraft developed in this time period were built using ENSI electrode sensors. These sensors established a neural connection between the aircraft and the pilot, achieving the goal of using thoughts to control an aircraft.[1] In addition, fly-by-wire systems were developed into a new "fly-by-opto" system that could take automatic control of an aircraft to assist a nerve-connected pilot.[1]

In 2028, General Resource Limited initiated the Darkness of Enigma program;[15] as part of the program, General Resource developed an opto-neural control system to be used in the X-49 Night Raven instead of an ENSI system. The artificial neural network would be directly implanted into a pilot's nervous system and connected by wires to the aircraft. While this allowed for more advanced maneuvering, there was a possibility of brain damage to the pilot and the artificial nerves, which had to be surgically applied, could not be removed.[1] Rena Hirose was the only person who received the artificial nerves and piloted the X-49 before Darkness of Enigma was shut down amidst fears of the system's potential damage.[15]


In the Infinity universe, the COFFIN system was developed in the early 21st century after the Ulysses Disaster. Based on neuromuscular connections, the system contained a hexagonal graphical interface, allowing the user to view an internal data library or configure operational parameters. As well, it could monitor solar wind and temperature conditions and contained a life support system.

Unlike the original technology from the Strangereal universe, COFFIN was used as an experimental system to remotely control aircraft from anywhere in the world. A prominent user was Camilla, who used it to operate modified CFA-44 Nosferatus known as "QFA-44 Carmilla" during the 2019-2020 USEA Federation rebellion.[16]

COFFIN Aircraft

See also: Category:COFFIN Equipped Aircraft

Cameras/sensors only





  • The basic operating principles of a COFFIN system, particularly the camera-based nature and mental control system, bear a resemblance to the technology used by the MiG-31 Firefox, the eponymous fictional Soviet interceptor from the 1977 novel Firefox and its 1982 film adaptation.
  • The COFFIN system appears in the canon of the United Galaxy Space Force series. According to official media, it was developed by General Resource and Neucom from ENSI into the "N.B.B." (Navigate-By-Biosignal) system, which adopts electroencephalography technology and a connection with extrasensory information.[17]


  1. The abbreviation "COFFIN" comes from the following capital letters in the official term: COnnection For Flight INterface.


  1. 1.0 1.1 1.2 1.3 Ace Combat 3: Electrosphere - Mission & World View Guide Book, page 186.
  2. 2.0 2.1 2.2 2.3 ACE COMBAT X Website.
  3. File:ACE-X XFA-27 Cockpit.jpg.
  4. File:20160804 004221 0.png.
  5. Aces At War: A History, page 066.
  6. File:ADF-01 Infinity Cockpit.jpg.
  7. Aces At War: A History, page 009.
  8. ACE COMBAT X Skies of Deception | FIGHTERS | オリジナル機体. Retrieved June 9, 2015.
  9. Ace Combat Xi: Skies of Incursion Official Website. Retrieved July 14, 2015.
  10. Skies of incursion, Ace Combat Xi: Skies of Incursion.
  11. Resistance, Ace Combat Xi: Skies of Incursion.
  12. End of Deception II, Ace Combat X: Skies of Deception.
  13. Ace Combat X: Skies of Deception - The Complete Guide, page 210.
  14. XFA-33 Fenrir hangar description, Ace Combat Infinity.
  15. 15.0 15.1 Ace Combat 3: Electrosphere - Mission & World View Guide Book, page 037.
  16. Ace Combat Infinity

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