Voychenko ViS-18

The Voychenko ViS-18 "Bierkut" (: Беркут, English: Bierkut) is a stealth, single-seat,   being developed by the Voychenko and Sobchak Design Bureau since 2002 for air superiority and attack operations, produced by the Gorbatov Aviation Complex. Developed as an answer to the increased use of stealth aircraft by militaries throughout Atlas. It is a product of a ViS program to develop technologies for a next-generation fighter aircraft able to surpass existing fifth-gen fighters, such as the Stasnovan VeK-44, Granzerian V-12, and Vazandian.

The fighter is designed to have, , , and advanced avionics to overcome the and even other fifth-generation fighter aircraft as well as ground and naval defences. The ViS-18 is intended to succeed the, , and VeK-44 in the Proletarian Liberation Air Force, to which it entered service with the PLAAF in 2018.

The prototypes and initial production batch are to be delivered with a highly upgraded variant of the Stasnovan, Sobchak AL-50M2, as an interim powerplant while an advanced clean-sheet design engine, currently designated the Sobchak S-50, is in final stages of development and expected to be available after mid-2020s. The aircraft is expected to have a service life of up to 40 years.

Variants

 * ViS-18A: Initial production version; entered service in 2018.
 * ViS-18UB: Initial production two-seat operational conversion trainer.
 * ViS-18E: Export version of the ViS-18 with downgraded engine based on, Sobchak AL-41F1, downgraded electronics, and reduced weapon capacity, currently offered to VP-affiliated states and other select countries.
 * ViS-18UBE: Export version of the two-seat operational conversion trainer.
 * ViS-18M: Late production version with the installation of the Sobchak S-50 engine, but also has improved avionics and stealth capability, planned to enter service mid-2020s.
 * An unmanned version of the ViS-18 is planned and is currently in development.

Operators

 * Gorbatov: The Proletarian Liberation Army have around 36 ViS-18As and 12 ViS-18UBs in active service, with an additional order for 108 ViS-18s and 24 ViS-18UBs placed in 2020.
 * Merala: The Meralan Armed Forces have around TBD ViS-18As and TBD ViS-18UBs in active service.
 * Saegya: The Saegyan Revolutionary Army have around 12 ViS-18As and 3 ViS-18UBs in active service, an additional order of 12 ViS-18As and 3 ViS-18UBs is expected to be delivered by late 2021.
 * Ahras: The Ahrasi National Armed Forces have placed an order for 10 ViS-18Es and 2 ViS-18UBEs in 2019, expected to be delivered by late 2020.