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Tel: 903-786-5050 • Fax: 903-786-5053


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Press Releases


Hartzell and Texas Turbine Conversions Develop New Supervan 900™ Composite Prop


Piqua, Ohio, July 11, 2016 - Hartzell Propeller and airplane modifier Texas Turbine Conversions are collaborating on a Supplemental Type Certificate for a new four-blade composite swept propeller for single-engine Supervan 900™ aircraft. The propeller STC is expected fourth quarter 2016.

"The Hartzell/Texas Turbine program matches engine upgrades for converted Cessna Caravans with structural composite propellers especially designed for the Supervan 900," said Hartzell Propeller President Joe Brown. "Advanced aerodynamics and sophisticated manufacturing processes increase performance and deliver extraordinary reliability for the 110-inch diameter propeller, which is 60 pounds lighter than the prop it replaces," he added.
Performance Boost
"The combination of the 900 SHP Honeywell TPE331 engine and optional new four-blade composite propeller from Hartzell on the Supervan 900, flat out gets after it," said Texas Turbine Conversions President Bobby Bishop. "The Supervan 900's new lighter weight Hartzell prop helps the airplane distance itself even further from any possible competitors as the world's best performing Cessna Caravan."
The new Hartzell Propeller composite prop installed on a Supervan 900 will be displayed at EAA AirVenture held in Oshkosh, Wisc., July 25-31 at the Texas Turbine Conversions exhibit # 308 in the Main Aircraft Display area. Hartzell Propeller specialists will also be available to answer questions at the world's largest annual aviator gathering at # 296-297.
Flight Testing
Texas Turbine Conversions recently completed successful vibration flight-testing of the new 110-inch diameter Hartzell composite propeller. The new prop will also available for retrofit on 90 Supervan 900 conversions already in service.
Located in Denison, Texas, Texas Turbine Conversions, Inc. has modified aircraft with the Honeywell (Garrett) TPE331 engines for more than 20 years. The company holds multiple STCs for engine modifications on numerous aircraft platforms. It specializes in DeHavilland DHC-3 Otter and the Cessna 208/208B Caravans conversions. For more info go to

About Hartzell Propeller
Hartzell Propeller is the global leader in advanced technology aircraft propeller design and manufacturing for business, commercial and government customers. The company designs next generation propellers with innovative "blended airfoil" technology and manufactures them with revolutionary machining centers, robotics and custom resin transfer molding curing stations. With ASC-II™ composite technology, Hartzell delivers optimal performance, strength, and durability with carbon fiber blades.

Hartzell Propeller and its sister company, Hartzell Engine Technologies LLC, form the general aviation business unit of Tailwind Technologies Inc. The aerospace technology company also includes Hi-Tech Metal Finishing and Mayday Manufacturing. For more info on Hartzell Propeller go to




Changes to better serve in 2013!

Texas Turbine Conversions, Inc. is making some changes to better serve you in 2013! We are excited to introduce the launch of our new interactive website, as well as the Jan. 3rd, 2013 launch of our 24/7 tech support line so that we can better serve you.

Please visit our new website at your earliest convenience and sign up for our customer portal. There you will have access to all the information you need including service bulletins updated documents and much more.

While you are browsing our new website be sure to click on the links in the top right corner and “Like” us on Facebook and follow us on Twitter to stay up to date with what TTC™ is up to and connect with other TTC customers around the world.

We appreciate you choosing to make TTC™ part of your family. We look forward to continuing to serve you for all of your conversion needs. As always, please feel free to contact us directly at (903) 786-5050, call our tech support beginning Jan. 3rd, 2013 at 903-647-2114 or contact us by email at This email address is being protected from spambots. You need JavaScript enabled to view it.




Skydive Spaceland Welcomes the Supervan 900!

It's back, bigger, better, faster, and with another blade on the prop! Our Cessna Grand Caravan recently returned from its Supervan 900 conversion and we are LOVING IT!!!!

It's not every drop zone that can call its Caravan the "fast plane" with everything else we have on the field. The Supervan is hauling jumpers to altitude fast enough to slide you to the tail if you're not paying attention to your balance on climb.

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08.15.2012 16:05

New businesses at North Texas Regional Airport helping local economy take off

Grayson County commissioners approved spending up to .8 million dollars to build a hangar for Texas Turbines, a company that modifies aircraft engines.

07.25.2012 11:59

Texas Turbine Conversions announces availability of its Cessna Caravan engine conversion in Africa

Texas Turbine Conversions, Inc. officially announced the availability of its successful Supervan 900 engine conversion, to the continent of Africa. Download PDF

12.05.2011 12:58

Banyan Teams with Texas Turbine on Caravan Conversion

Fort Lauderdale-based Banyan Air Service's maintenance team has partnered with Texas Turbine Conversions of Celina, Texas.

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10.17.2011 22:07

Skydiving operator sees jump in business and fall in operating costs

Donnerflug Aviation Services GmbH, a Germany-based skydiving operator, has grown its business with the Supervan 900 aircraft -a Cessna Caravan conversion with Honeywell's TPE331- 12JR turboprop engine offered by Texas Turbine Conversions, Inc. Download PDF

04.03.2011 21:34