In The Works: Citation CJ1+ and CJ2+

Aviation International News » April 2005
January 31, 2007, 4:44 AM

Last month Cessna said it had begun production line flow of its new Citation CJ2+ and would soon start production of the Citation CJ1+. On February 11, the first Citation CJ2+ (S/N 525A-000300) began its journey down the production line. This twinjet will be used to certify the avionics for the CJ2+.

Additional CJ2+s will begin moving down the line in the third quarter. Since the three models largely share part commonality, Cessna said the Citation CJ1+, CJ2+ and CJ3 production lines have been combined for greater manufacturing efficiency.

To enable this, the Citation CJ1+, CJ2+ and CJ3 module tooling has been designed to be easily configured depending on the specific model being produced. As such, Cessna can build any CJ1+, CJ2+ or CJ3 airframe on the same production tooling. This also allows the company to adjust Citation CJ1+, CJ2+ and CJ3 prod- uction rates to better match supply with demand.

The $4.095 million CJ1+ and $5.525 million CJ2+ incorporate many of the refinements built into the CJ3, including the larger sibling’s more feature-laden version of the Rockwell Collins Pro Line 21 integrated avionics system. The CJ1+ got a cabin makeover from its CJ1 predecessor, sporting LED lighting, updated cabin seats, modern cabinetry styling, more refined cabin overhead and new manual window shades.

Both of the new variants will have upgraded Williams FJ44 engines, each equipped with a FADEC unlike their predecessors. The new 1,941-pound-thrust FJ44-1AP turbofan on the CJ1+, which replaces the -1A engine on the CJ1, has a new fan and lighter interstage housing, and it borrows the FJ44-3A’s high-pressure compressor, low- and high-pressure turbines and forced mixer. The CJ2+’s Williams FJ44-3A-24 turbofan offers better hot-and-high performance and improved efficiency over the original CJ2’s 2,400-pound-thrust FJ44-2C turbofan.

According to Cessna, the prototype CJ1+ has logged more than 175 hours of flight testing since its maiden voyage in October 2004. Flight tests already completed include field performance, stall speeds, systems verification and general aircraft handling qualities. Cessna said it is on schedule for first customer delivery in the fourth quarter.

The Citation CJ2+ also continues to progress on schedule, the company added. Cessna powered up the prototype’s electrical system on January 27 and conducted the first engine run on February 23. First flight was pending at press time. Certification is scheduled for the fourth quarter, with first deliveries expected in the second quarter of next year.

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