About Us

Turbine Conversions, Ltd was established in October of 1990 to develop new turbine powered conversion options for Agricultural Aircraft.  The founder and president of TCL, William (Bill) Hatfield, has been a leading force in the Agricultural Aviation industry for almost 50 years and was inducted into the National Agricultural Aviation Museum’s Hall of Fame for his contributions to technological advancements in the industry. Bill and his wife, Nancy, started Hatfield Spraying Service (HSS) in 1970 in Nunica, Michigan after Bill received his pilot’s license and degree from Western Michigan University.  Together the built a thriving Ag Aviation business in West Michigan. Converting Bill’s Ag Cat to turbine power in the early 1970’s installing the 3^rd Frakes Turbo Cat.

Due to HSS experience operating a turbo prop aircraft and their long term commitment to the AG aviation industry, Bill & Nancy were approached in 1989 by Melex USA about doing a turbine modification to the PZL M18 Dromader.  Turbine Conversions, Ltd was formed to facilitate this modification.

TCL received the Supplemental Type Certificate (STC) for the M18 with a Pratt & Whitney engine in 1990.  Since then TCL has gone on to receive a total of 30 STCs.  TCL’s STC portfolio includes turbine conversions kits featuring both Pratt & Whitney and GE engines for most popular Ag Aircraft, Ag Cat, AT 400, AT 500, Thrush and now (our first civil aviation product) the Cessna 206.  Along with the turbine packages TCL has a very popular Single Point Fueling System, Hydraulic Fire Gate and many more products that benefit the agricultural aviation industry.

TCL is a dynamic company that specializes in design & development and production of quality products.  One of our strongest assets is its diverse design team.  Each member contributes a wide variety of aeronautical experience and expertise. We continue to grow as a global company partnering with some of the best Agricult