Sukhoi Su-38 no users have yet expressed interest in the aircraft, the project is currently proceeding at a low pace. Sukhoi Su-38 The Su-38L is a Russian agricultural aircraft, the first aircraft of this type to be designed and built by the Sukhoi Design Bureau civil aircraft section (Sukhoi Civil Aircraft (CJSC)). Design originally began in 1993 as a development of the Sukhoi Su-29 aerobatic aircraft. Development was suspended due to economic problems, and when restarted in 1998, the aircraft was redesigned, reducing the aircraft's size and replacing the originally planned M-14 radial engine with a LOM Praha 337S inline engine. The
Sukhoi Su-17 Sukhoi Su-17 The Sukhoi Su-17 (NATO reporting name: Fitter) is a Soviet variable-sweep wing fighter-bomber developed from the Sukhoi Su-7. It enjoyed a long career in Soviet, later Russian, service and was widely exported to Eastern Bloc, Arab air forces, Angola and Peru as the Su-20 and Su-22. It is the first variable-sweep wing of Russian/Soviet origin. Seeking to improve low-speed and take-off/landing performance of the Su-7B fighter-bomber, in 1963 the Sukhoi OKB with input from TsAGI created a variable-sweep wing technology demonstrator. The Su-7IG (internal designation S-22I, NATO designation "Fitter-B"), converted from a production Su-7BM, had fixed inner portions