Tamarack Aerospace earned FAA supplemental type certification (STC) approval in January 2017 for installation of its innovative Active Winglet system on the Cessna C525 CitationJet, and its CJ, CJ1, CJ1+, and M2 variants, bringing greater fuel efficiency and climb performance to Cessna’s vaunted CitationJet lineup with none of the tradeoffs associated with conventional, “passive” winglet designs.
For decades, winglets have been a valuable tool for improving fuel efficiency by reducing aerodynamic drag off an aircraft’s wingtips. However, traditional winglets also held several downsides related to the hundreds of pounds of additional structural reinforcement needed to support those devices. This added weight translated directly to reduced useful load, and other drawbacks negating at least some of those efficiency gains.
Tamarack’s system avoids these pitfalls by utilizing an active load alleviation device (dubbed “Atlas”) continually operating to reduce aerodynamic loading on the winglets. That allows installation of the system with no additional structural reinforcement necessary.
According to Tamarack, Citations equipped with Active Winglets enjoy significant fuel savings (25% for the CJ & CJ1, 13% for the CJ1+ & M2) as well as increased range, higher initial altitudes and faster climb performance, and a 400-lb. increase in maximum zero fuel weight (MZFW). The system also results in better high-hot performance, and a smoother ride in turbulent conditions.
The FAA’s signoff followed approval by the European Aviation Safety Agency (EASA) in 2016, and allows Tamarack’s winglets to be installed by Citation Service Centers throughout in the United States and Europe. The company is also exploring other potential installations, including additional applications across the Citation lineup.
“We have a long list of orders and our customers are actively working with our partner, Cessna, on scheduling installs,” said Tamarack founder and CEO Nick Guida. “With the STC behind us, we expect a significant number of new orders from customers who have waited for certification.”
Speak with your Citation-Focused Jet Quest representative for more information about the Tamarack Active Winglet system, or visit www.tamarackaero.com.