Winglet Technology Nearing Completion of Cessna Citation X Elliptical Winglet Flight Testing

Orlando, FL October 5, 2008 – Since program announcement at NBAA in September 2007, significant progress has been made towards completing FAA certification of Winglet Technology’s patented Elliptical Winglets on the Cessna Citation X. The modification kit and production winglets have been installed on Cessna’s test aircraft, and final flight testing is nearing completion. The wing full scale static test has been successfully completed, and the winglet static test is underway and expected to complete this month. Remaining electrical system and exterior lighting flight testing is also scheduled to be completed this month. Issuance of a Federal Aviation Administration (FAA) Supplemental Type Certificate for the Citation X Elliptical Winglet is planned for June 2009.