Program Profile: Cessna Citation Encore
The Citation V, Ultra, Encore and Encore+ are commercial designations for the Cessna 560 type, with the Citation V the first to receive FAA certification on Dec. 9, 1988. Subsequently, the upgraded Encore was certified on April 26, 2000, while the Encore+ made its first flight on March 22, 2006, and received FAA approval on Dec. 14, 2006. Differences between the versions of the Cessna 560 type noted above include airframe dimensions, equipped engines, maximum weights and fuel capacity. While the type certificate which includes the 560 type was formerly held by the Cessna Aircraft Co., it was transferred to Textron Aviation on July 29, 2015.
Other limitations that are common to the Citation V, Ultra, Encore and Encore+ include a maximum operating limit speed (MMO) of 0.75 Mach above 28,907 ft. and a maximum operating altitude of 45,000 ft.
Although all commercial designations of the 560 type are certified to be powered by Pratt & Whitney Canada engines, the Citation Ultra and V’s engines are variants of the JT15D, which are limited to a lower amount of thrust in comparison to those which are certified for the Encore and Encore+. The Citation V’s JT15D-5A turbofans have takeoff and maximum continuous static thrust limits of 2,900 lb., while the Ultra’s JT15D-5D engines increase those limitations to 3,045 lb.
As is the case with the previously certified versions of the 560 type, the Citation Encore and Encore+ are equipped with different variants of the same Pratt & Whitney Canada engine series, in this case the PW500. Despite being powered by different engine variants—the PW535A for the Encore and PW535B on the Encore+—the takeoff and maximum continuous static thrust limits are a common 3,400 lb. In keeping with the JT15D variants, the static thrust limits of the Encore and Encore+’s engines are based on standard conditions and sea-level altitude.
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