STC Permits Texas Turbine to Offer Hartzell’s Composite or Aluminum Props for Converted 950-SHP Supervans

Texas Turbine Conversions, working with Hartzell Propeller, receives FAA approval to allow Supervan conversion customers to choose either structural composite props or more economical aluminum props as part of its conversion package.

“Now Cessna Caravan owners and operators with the Supervan turboprop conversion can choose between a 110"-diameter structural composite prop or the more economical 109.5"-diameter aluminum option. Both propellers are four-blade and offer a 60-pound or 25-pound weight savings, respectively, over the original Supervan propeller,” says Hartzell Propeller president, JJ Frigge. “And they both can get Hartzell Propeller’s six-year, 4,000-hours TBO,” he adds. 

“Hartzell has provided outstanding support for our engine-conversion program and our customers by developing both aluminum and composite propellers designed to maximize the performance of the Supervan conversion,” says Texas Turbine Conversions president, Bobby Bishop. “The result is a true 200+ knot airplane with a 40 percent reduction in takeoff roll and a substantially greater rate of climb.”

The combination of the Honeywell 950-shaft horsepower TPE331 engines and the Hartzell propellers further distances the Supervan-modified 208 and 208B Caravans from other Caravans available on the market. Both the composite and aluminum propellers were designed specifically for the Honeywell engine by Hartzell’s engineering team.

For more info on Hartzell Propeller, visit www.hartzellprop.com.