Turbo conversions can sometimes look ungainly. This Sukhoi Su-26 has been retrofitted with a Walter M601 turboprop.
The Walter M601 turboprop engine has been in production since 1975 and powers several commuter type aircraft. The engine is also a widely used for STC turbo conversions and is popular among homebuilders who want to go the turboprop route. In addition to the M601, Walter manufactures industrial gas turbines and medical products. Walter, a.s., is based in the Czech Republic.