Winglet Technology, LLC and Cessna Aircraft Company have collaborated to develop the world’s fastest winglet for the world’s fastest civilian aircraft with a top speed of .92 Mach. Winglet Technology worked closely with Cessna Aircraft Company to develop a Supplemental Type Certificate (STC) permitting the installation of the Elliptical winglets on the Cessna Citation X business jet.

The STC includes updated Airplane Flight Manual and Operations Manual Supplements, updated version of CESSNAV including CPCalc, Ops Manual, and CLCalc for customers who have previously purchased the CESSNAV subscription. The STC has been approved for pre-172 (with and without 400 lb gross weight increase) and post-173 serial numbers.

Winglet Technology received FAA approval of the Citation X winglet STC in June 2009. Since that time, the Citation X winglet STC has been approved by EASA (Europe), TCCA (Canada), ANAC (Brazil), and DGAC (Mexico).

The Elliptical winglet design provides significant performance improvements for the Citation X, including increased speed at higher altitudes, improved take-off performance, reduced time-to-climb, increased range and payload, improved cross wind capability, and improved directional stability.

  • Increased speed at higher altitudes
    Up to 12kts at ISA temperatures
    Up to 20kts at ISA +10 temperatures
  • Improved hot day / high altitude take-off performance
    Up to 4° C or 1,200 lbs for flaps 5 departures
    Up to 5° C or 1,270 lbs for flaps 15 departures
  • Increased range capability
    Up to 220 NM for 4 passengers, NBAA IFR reserves, ISA temperature
    Up to 315 NM for pre-172 S/N’s with winglets and 400 lb GW increase
    Up to 550 NM for 4 passengers, NBAA IFR reserves, WAT limited take-off
  • Higher initial flight levels
    Direct to FL 430 @ MTOW and ISA +10
    Direct to FL 450 @ MTOW and ISA
    Direct to FL 470 @ 34,000 lbs and ISA
  • Reduced time-to-climb
    FL430 reduced from 137 to 37 minutes @ MTOW and ISA +10
    FL450 reduced from 84 to 27 minutes @ MTOW and ISA
    FL470 reduced from 138 to 31 minutes @ 34,000 lbs and ISA
  • Improved climb gradient
    1/2% 1st & 2nd segment climb gradient improvement
  • Reduced fuel consumption
    Up to 8% for high speed cruise flight profiles
  • Reduced direct operating costs
    Increased range reduces en-route technical stops
    Up to 2,100 lb fuel savings per technical stop avoided
  • Enhanced aircraft resale value
    100% Blue Book value of installed winglet STC

The STC Installation includes the addition of the winglets, structural reinforcement to the outboard wing, navigation/anti-collision light in the tail, and upgrade of the IC-800 integrated avionics computer.

The winglet construction is a core stiffened carbon/epoxy laminate design which is resistant to damage. The integrated composite design eliminates external fasteners, giving it a smooth and sleek appearance. The leading edge skins are polished aluminum, and are attached with removable screws, allowing replacement in the event of damage. The attachment to the wing is an interchangeable joint which allows for convenient winglet replacement. The winglet and tail exterior lighting system utilizes all LED lights for significantly improved reliability.

The winglet STC Retrofit Kit price is $415,000. The owner/operator contracts directly with Winglet Technology. A $50,000 deposit is required to secure current winglet retrofit kit pricing. Winglet Technology provides a 5 year limited materials and workmanship warranty for the winglet retrofit kit.

Winglet Technology provides 24/7 product support of the Citation X winglet STC including spare parts and rental winglets. Winglet Technology also provides 24/7 technical support of the Citation X winglet STC.