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Clifford Development Announces the Complete Unrestricted Certification of the Citation C550 & S550 Series Aircraft Modification Using International FJ44-3A Engines


Clifford Development Appoints Stevens Aviation As A Service Center for Citation 550/S550 Engine Retrofits

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See Us at the Following Events

NBAA Regional - Dallas, TX - 4/9/09
Sun & Fun - Lakeland, FL - 4/21/09 to 4/26/09
EBACE - Geneva - 5/12/09 to 5/14/09
Reno Air Races - Reno, NV - 9/16/09 to 9/20/09
NBAA - Orlando, FL - 10/20/09 to 10/22/09

Citation SII (foreground) and Citation II with Williams International FJ44-3A engines

THE SKIES ARE FILLED WITH SOME RENOWNED BUSINESS JETS — CITATIONS, HAWKERS, FALCONS. But as impressive as these venerable jets are, new and better technologies have been created since their original design—especially in the area of new jet engine technologies. Our mission is to marry the best-in-class performance and efficiency of Williams International’s engines with some of the world’s most popular business jets. In the process, we are creating the industry standard for certified engine modifications that can breathe new life and excitement into the world’s jet fleets. Our first success story—bringing unimagined levels of performance, efficiency and safety to the legendary Citation II and Citation SII.