The Scinfaxi-class submarine is a class of Yuktobanian nuclear-powered submersible carriers equipped with burst-missile launchers. The Scinfaxi-class was heavily inspired by the Federation of Central Usea's Dragonet-class design.


The Scinfaxi-class submersibles were created by the Yuktobanian Navy and the National Munitions Factory during the Cold War as a response to the Osean Federation's Strategic Defense Initiative (SDI). The concept of an underwater attack-carrier stemmed from the "Arsenal Ship Project" previously proposed by Yuktobanian Navy Admiral Leonov. The submarine was assembled in a shipyard near the city of Okchabursk.[1]

The development and existence of the Scinfaxi was officially revealed by Prime Minister Samanov on September 2, 1991 at an event held in Cinigrad. At the unveiling, Samanov announced that the creation of a second, more cost-efficient Scinfaxi vessel was already underway. The announcement was belittled by Osean Foreign Minister Howard, who claimed that the submarine was merely a counterfeit of the Dragonet-class submersibles constructed by the Federation of Central Usea.[1]



Scinfaxi-class submarine details

Scinfaxi-class annotations (in Japanese)

Scinfaxi-class submarines are impressive works of nautical engineering: their lengths exceed 300 meters, almost twice as large as a Typhoon-class submarine. It was the largest submarine class in existence,[1] prior to the construction of the Alicorn.[2]

The Scinfaxi-class was primarily designed as a mobile strategic missile platform and features launch ports for firing salvos of ballistic missiles equipped with burst warheads in rapid succession. In addition to being a missile-launch platform, Scinfaxi-class submarines also doubled as underwater aircraft carriers capable of housing numerous powered lift aircraft to protect itself from enemy attacks.[1][3][4]

The hull of the warship is composed of highly advanced stealth materials to avoid both sonar and radar detection, a design choice intended to minimize the vulnerability of ballistic missiles during the post-launch boost phase, at which they are the most vulnerable to enemy attack. The aft-dorsal hull of the Scinfaxi submersibles also supported an array of anti-aircraft guns and surface-to-air missile launchers, which retracted into the hull whenever the vessel submerged.[1][3][4]



The Yuktobanian underwater carrier Scinfaxi, for which the class was named, was the first of its kind to appear in the Strangereal universe. It was revealed to the world on September 2, 1991, at an event held in Cinigrad, and launched four years later. It is capable of carrying a squadron of Harriers and F-35 V/STOL jet fighters.[1][3]

The combat history of the Scinfaxi is unknown up until late 2010, when it was used against Osea during the Circum-Pacific War. On September 30 of that year, the Scinfaxi launched a devastating burst-missile attack against the 3rd Osean Naval Fleet while it passed through Eaglin Straits. The Scinfaxi's long-range burst missiles successfully sunk the Osean aircraft carriers Vulture and Buzzard, sunk several escort warships, and inflicted heavy casualties on the fighter squadrons in the airspace.[5]

Several days later, on October 4, the Scinfaxi participated in Yuktobania's attempt to invade and capture Sand Island. Although the Scinfaxi's burst missiles wiped out the rookie Osean pilots in the area, the vessel's anti-air defenses and missile launch port were eventually destroyed by Wardog Squadron. Defenseless and unable to dive, the Scinfaxi's hull was pierced by the Arkbird's orbital laser strike, causing the submarine's core to go critical—the vessel would explode moments afterward.[3]


The Yuktobanian underwater carrier Hrimfaxi was the sister ship to the Scinfaxi, launched two years after the latter. It was mentioned, but not detailed or fully revealed, at the event in Cinigrad in which the Scinfaxi was revealed. The Osean Federation was aware its existence, but not of its specifications or location during the Circum-Pacific War, preventing any preemptive assault.[1]

Later in the war, Osean ground troops began to storm the Yuktobanian mainland in a blitz offensive that aimed to end the war in short order. On November 14, the Hrimfaxi began launching its burst missiles at the Osean troops from several hundred miles away in the Razgriz Straits. The Hrimfaxi ceased its missile launch operations, surfaced, and began refueling from a friendly tanker; a defensive line of picket submarines was established around the submersible to warn of any hostile enemies.[4]

The Hrimfaxi received an alert from one of its scout subs that Osean fighters were inbound. The Hrimfaxi aborted the refueling effort and began emergency diving preparations; however, before it could successfully submerge and escape, Wardog Squadron damaged its ballast tanks, making sustained submersion impossible. Unable to run, the Hrimfaxi engaged Wardog with its anti-aircraft weaponry, burst-missile barrages, and swarms of vertically-launched UCAVs. Eventually, the Hrimfaxi lost its defensive weaponry and the ability to dive altogether; after sustaining considerable hull damage, the vessel was torn apart by a reactor overload, similar to the fate of its sister ship.[4]

Unnamed submarine

Infinity Scinfaxi-class submarine

A USEA Federation Scinfaxi-class submarine

Unnamed Scinfaxi-class subs appear in the Infinity universe as emergency mission updates during Online Co-Op Missions. A Scinfaxi-class vessel can appear in Tokyo Martial Law, Aerospace Center Defense, Pipeline Destruction, and Adriatic Sea Landing Operation. In Tokyo and the Aerospace Center, only two minutes are allotted for destroying the submarine; in Pipeline and the Adriatic Sea, a full three minutes are allotted.[6]


As previously mentioned, Scinfaxi-class submarines can also function as aircraft carriers and support unmanned aerial vehicles or S/VTOL aircraft:


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 WORLD / WORLD NEWS / ПОСЛЕДУЙТЕ, Ace Combat 5 Website. Retrieved January 9, 2017.
  2. SP Mission 01: "Unexpected Visitor", Ace Combat 7: Skies Unknown.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Mission 07: "Front Line", Ace Combat 5: The Unsung War.
  4. 4.0 4.1 4.2 4.3 4.4 Mission 13: "Demons of Razgriz", Ace Combat 5: The Unsung War.
  5. Mission 05: "Rendezvous", Ace Combat 5: The Unsung War.
  6. Ace Combat Infinity.
Community content is available under CC-BY-SA unless otherwise noted.