The SibNIA TVS-2MS, TVS-2DT, TR-301 and TVS-2DTS (Russian: СибНИА ТВС-2ДТС) are a series of high-wing, single-engined, biplane utility aircraft developed by the Siberian Aeronautics Research Institute (Russian: Сибирский научно-исследовательский институт авиации) as a light multi-role successor to the An-2.

[1] In September 2019, it was announced that the SibNIA TVS-2DTS would not become the replacement of the An-2 aircraft type, rather the Russian Ministry of Industry and Trade asked the government procurement portal for research and development of a completely new airframe to replace it, instead of an extensively modified version.

[6] Unlike the aluminium biplane that proceeded it, the TVS-2DTS is constructed of composites, has a turboprop engine and glass cockpit.

Unlike its predecessor, the fuselage and wings of the TVS-2DTS are made entirely of composite materials reinforced with carbon fibre.

The STOL capabilities make the aircraft particularly suitable for military and civilian supply flights in areas with poor infrastructure.