Prompted by inquiries last week from AIN, Cessna today will confirm in a short press release that it is introducing the Citation CJ4 at the NBAA Convention in October. The manufacturer said in its release only that the new aircraft will have a 45,000-foot certified ceiling, Rockwell Collins Pro Line 21 will be the primary avionics, it will be powered by Williams FJ44-4A FADEC turbofans and that it will have "some cabin and airframe changes, such as a new wing." Separately from Cessna's announcement today, AIN learned that the company will display a full-scale mockup at the convention. AIN also obtained the following preliminary specifications and performance data. The new airplane is a stretched version of the CJ3 but with a swept wing based on the Citation Sovereign airfoil. With a cabin 21 inches longer than that of the CJ3, the CJ4 engines will produce 3,400 pounds of thrust and the new jet will likely replace the Citation Encore. The CJ4 will offer a 1,000-pound full-fuel payload; 1,840-nm NBAA IFR range; 425-ktas cruise at FL410; 3,300-foot balanced field length; and 2,710-foot landing distance at max landing weight. Cessna will be seeking certification under FAR Part 23 commuter category rules to accommodate the twinjet’s planned mtow of 16,630 pounds. The CJ4 is scheduled to fly in the first half of 2008 and enter service in 2010. Price has not been released publicly.