About 2017-04-05T17:26:09+00:00


Get to know us.  It’ll be worth it.


Texas Turbine Conversions, Inc. has modified aircraft with the Honeywell (Garrett) TPE331 engines for over 20 years. The company holds multiple STC’s for engine modifications on numerous aircraft platforms.

Currently specializing in DeHavilland DHC-3 Otter and the Cessna 208/208B Caravan’s, the company has modified and delivered over 130 aircraft all over the world.


Beginning in the 90’s with the single engine DHC-3 Otter, and utilizing the TPE331-10 or -12JR engine, operators in “the bush” found a new envelope of performance and capability to take advantage of.

Ask any of our 40 plus operators in Canada or Alaska what is on their list to run a successful business in such a harsh and demanding climate, and you can bet that our Super Otter is on the top!

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Texas Turbine Conversion’s most recent and highly successful STC effort, provides Cessna Caravan owners with unprecedented thrust, performance, and efficiency regardless of operating conditions. Whether you take off from the water or a gravel strip, with the TPE331-12JR under the hood, rest assured that you have plenty of power (900SHP) to get in and out, without having to leave anyone or anything behind.

Regardless if you are an airline, drop zone, private user, or conduct special missions – our Supervan 900 can get you their faster, safer, and more efficiently than any other engine upgrade on the market. Leaving you time on your watch, money in your pocket, and the satisfaction of operating the most technologically advanced turbo-prop engine in the world.

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The company is comprised of people with engineering, mechanical, and flying backgrounds. We are very familiar with the following aircraft:

  • Cessna C-172’s up to C-208
  • Helio Couriers
  • Pilatus PC-6 Porters
  • DeHavilland DHC-3 Otters, DHC-4 Caribous, DHC-6 Twin Otters
  • Shorts SC-7 Skyvans
  • Douglas DC-3’s

Texas Turbines is easily capable of fulfilling your engine upgrade needs. Contact us today to see how we can assist you!

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