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We Fly: Tamarack’s Active Winglets

Tamarack’s active wingtip extension and winglet system include TACS, small tabs that move to alleviate stress on the wing in high-load conditions. The performance improvements are dramatic. Tamarack
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Key Takeaways:

  • Tamarack Aerospace is nearing FAA certification for its Active Technology Load Alleviation System (ATLAS), featuring Active Camber Surfaces (TACS), for the Cessna Citation 525 series, already certified in Europe.
  • The ATLAS system automatically alleviates wing load during high-G maneuvers or turbulence, allowing for wingtip extensions and winglets without increasing stress on the airframe.
  • This technology delivers significant performance improvements, including dramatically faster climbs (e.g., to FL 410 in 34 minutes), a 15-25% reduction in fuel burn, increased payload capacity, and improved lateral stability and airframe service life.
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Tamarack Aerospace is in the final stages of FAA certification for the first commercially viable installation of its Active Technology Load Alleviation System (ATLAS), which allows wingtip extensions with winglets to be installed without increasing the load on the wing. The installation includes Tamarack Active Camber Surfaces (TACS) on the outboard portions of the trailing edges of the wings. The TACS automatically activate when additional load is put on the wing, such as during turbulence or maneuvers that increase G-load. The first STC for the system will go to the Cessna Citation 525 series: the CJ, CJ1, CJ1+ and M2. The system is already certified in Europe and is available for installation there.

Pia Bergqvist

Pia Bergqvist joined FLYING in December 2010. A passionate aviator, Pia started flying in 1999 and quickly obtained her single- and multi-engine commercial, instrument and instructor ratings. After a decade of working in general aviation, Pia has accumulated almost 3,000 hours of flight time in nearly 40 different types of aircraft.

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