Soloy Aviation originally worked with Allison Gas Turbine Division to secure the original FAA STC for the Bonanza turboprop conversion.
Soloy Aviation Solutions acquired the FAA STC approval for the Tradewinds Turbine Bonanza conversion package from Dan Brooks. Under the STC, the Bonanza’s piston engine is replaced with a 450-shp Rolls-Royce 250-B17 engine. (Photo: Chad Trautvetter/AIN)
