The GT1 is a new Russian dual-section freight locomotive of 2 (Bo-Bo-Bo) axle arrangement, with a total weight of 300 tonnes and a service speed of 100 km.h. The prime mover is a two-shaft gas turbine developed by SNTK Kuznetsov from the NK-321 turbofan that powers the Tupolev Tu-160 Blackjack strategic bomber. Rail power is 8,3MW. Tankage is provided for 17 tonnes of fuel, enough for a 750km trip, but the engine can also run on LNG. Tranmission is AC/asynchronous. Up to 3 GT1s can work as multiple units. The locomotive is developed on behalf of the Russian railway system RZD by Voronezh Locomotive Plant under supervision of the All-Russian Research and Design Institute of Technology (VNIKTI) in Kolomna. RZD have a plan to purchase up to 100 GT1s for heavy freight train haulage on non-electrified lines, in replacement of older diesel locomotives, if the evaluation currently underway with the GT1-001 prototype since 2007 (and during which it has pulled consists up to 15 000 tonnes and 159 wagons) proves successful.