The Aviation Innovation Specialists

About the Company

As Turbine Conversions, Ltd. (TCL) celebrates its 34th year in business in 2024, we are honored to continue our contributions to the agricultural aviation industry. The TCL Single Point Fueling (SPF) system remains the #1 requested upgrade for ag aircraft worldwide. By the time of the NAAA Expo in Fort Worth, TCL will have manufactured nearly 1,500 SPF systems—a milestone made possible thanks to the tremendous support of our dealer network, quality maintenance facilities, and our loyal customers.

TCL, a family-owned global business, is built on the core principles of innovation, quality, safety, and integrity. We are continuously seeking new solutions for the industry, never resting on past successes but always striving for improvement.

In 2024, we’ve made several enhancements to our SPF program. These include significantly reducing SPF delivery lead times, expanding our network of installation centers with two new facilities in Brazil, and welcoming a new US dealer, Ag Air Aircraft. We also anticipate EASA approval for the SPF system soon, enabling us to better serve the European market. Additionally, we are excited to offer a new SPF version specifically designed for the Air Tractor Fire Boss.

In true Bill Hatfield fashion, innovation never stops. The original Custom Air Single Arm Tailwheel for the AT 802 & 602 (STC SA0286WI) has found a new home at TCL. We’ve updated the design, replacing the upper bushing in the existing housing with a bearing/race combination for a smoother, tighter ride that reduces excessive vibration. Now more durable and reliable than ever, we are pleased to offer this modification as both a new assembly and spare parts to support current STC owners in 2025. Be sure to visit Booth 1007 at the Expo to see it in person.

Since 2018, TCL has proudly served as the North American distributor for Zanoni Equipment, manufactured in Brazil. Zanoni offers a full line of stainless steel precision application equipment for all makes and models of aircraft, and we maintain a full inventory at our Michigan facility, ready to ship to the US and Canada.

In September, we were thrilled to host Lucas Zanoni from the Zanoni factory for our 2nd Annual Midwest tour. Lucas and Mark visited ag operators in Illinois, Missouri, Nebraska, Kansas, South Dakota, and Wisconsin, as well as our SPF dealers, North Star Aviation and Beckman Maintenance. These face-to-face visits allow us to better understand the needs of our customers and how to best serve them.

This year, Mark Grahek also spent time in both North and South Dakota, working with customers who are implementing Zanoni atomizers in their operations. We are committed to supporting our customers through calibration clinics and personalized service, ensuring that Zanoni atomizers deliver optimal results in the US and Canada.

Bill Hatfield has always believed in offering quality products at fair prices, and every day we strive to honor that commitment. With over 40 STCs for the agricultural aviation market and a complete line of Zanoni stainless steel dispersal equipment, TCL is ready to help propel your Hatfield Hydraulic Fire Gates for Air Tractor and Thrush, Variable Rate Gates, Full Swivel Tailwheels, and Thrush Reinforced Leading Edges.

We believe that success comes from working together. Our family is dedicated to providing our customers with innovative solutions and premier service. We are deeply grateful for the support we’ve received over the past 34 years, and we look forward to continuing to serve you in 2025 and beyond.

Ann Hatfield – Grahek & Mark Grahek

Bill & Nancy Hatfield