The Citation CJ2 and CJ2+ are closely related members of Cessna’s 525A CitationJet family. They share the same basic airframe, cabin size, single-pilot capability, and light-jet operating profile, but they are not identical airplanes. The CJ2+ added FADEC, improved weight limits, better climb performance, and a more integrated avionics package, while the CJ2 remains an attractive value when properly equipped.

At a high level, the CJ2 is best understood as the stretched version of the original CJ/CJ1 family. The cabin is nearly three feet longer than the earlier CJ, which gives passengers noticeably more legroom and makes the aircraft much more practical for six passengers. The CJ2+ then builds on that same airframe with better systems, improved engines, and more useful weight limits.

Cabin and Mission

From a passenger standpoint, the CJ2 and CJ2+ feel very similar because they use the same cabin. Both are a meaningful step up from the original CJ/CJ1 cabin because of the fuselage stretch, which adds legroom and makes the aircraft much more practical in a six-seat configuration.

Most CJ2 and CJ2+ aircraft are configured with six main cabin seats, a refreshment center, external baggage, and an aft lavatory. Some aircraft have a belted lavatory seat, and a small number were configured with a rare side-facing seat near the entry. Depending on the interior layout and certification, seating may range from six passengers to seven or eight total passenger seats, but the most common and practical configuration is six cabin seats plus the lavatory option.

These airplanes are well suited for regional business travel, owner-flown operations, small flight departments, and short-to-medium stage lengths. They offer a strong balance of speed, efficiency, runway performance, and cabin utility while still operating into airports that may be less practical for some competing or larger aircraft.

Engines and Performance

One of the most meaningful differences between the CJ2 and CJ2+ is the engine package. The CJ2 is powered by Williams FJ44-2C engines, while the CJ2+ uses FADEC-controlled Williams FJ44-3A-24 engines.

On paper, the thrust increase is not dramatic — 90 pounds per engine — but the airplane feels like it gained more than that. In real-world operation, the FADEC, engine scheduling, and improved engine installation make the CJ2+ feel more refined and more capable than the simple thrust number suggests. It climbs better, manages power more cleanly, and generally feels stronger in the high-altitude climb and day-to-day operation.

The CJ2+ is also slightly faster. The difference is not enough to completely change the mission, but it is noticeable over time. The CJ2 is typically thought of as a roughly 400-knot light jet, while the CJ2+ is usually a little faster and more refined in cruise and climb.

Weight Limits and Payload Flexibility

The biggest practical performance difference may not be cruise speed — it is zero fuel weight.

The CJ2 has a maximum takeoff weight of 12,375 pounds and a maximum zero fuel weight of 9,300 pounds. The CJ2+ increased maximum takeoff weight to 12,500 pounds and maximum zero fuel weight to 9,700 pounds.

That extra 400 pounds of zero fuel weight matters. In the CJ2, zero fuel weight can become a limiting factor when carrying passengers, bags, and equipment. The CJ2+ gives the operator more flexibility with people and baggage before running into that limit. For a private owner or business operator, that can be more meaningful than a small cruise speed difference.

Avionics

This is another major difference between the two models.

The CJ2 has Collins Pro Line 21 displays, but the avionics package is more of a hybrid setup. Many CJ2s were delivered with Collins screens paired with a Universal FMS. The result is a capable airplane, but not as clean or integrated as the later CJ2+ cockpit. Many CJ2 owners have upgraded or removed portions of the original avionics over time, so individual aircraft can vary significantly.

The CJ2+ came from the factory with the more integrated Collins Pro Line 21/FMS-3000 avionics environment. It is a cleaner, more modern factory setup, and the integrated FMS-3000 works more naturally with the rest of the avionics suite. It also provides better performance-data functionality and a more cohesive cockpit experience than the original CJ2 configuration.

That said, avionics condition and upgrade path are very important. Collins Pro Line 21 is capable and proven, but the equipment is aging, and Collins repairs can be expensive — especially displays, FMS components, autopilot-related components, and other legacy avionics. A CJ2+ may have the better factory avionics package, but that does not automatically mean every CJ2+ has the better panel today.

As of 2025, the CJ2 has an approved Garmin modernization path using the Garmin G600 TXi/GFC 600-style upgrade package. That upgrade can transform the CJ2 cockpit and make a Garmin-equipped CJ2 very attractive. As of now, that same Garmin path is not generally offered for the CJ2+, which means the CJ2+ retains the stronger factory cockpit, while the CJ2 may offer the better modernization path.

CJ2 vs. CJ2+ Specification Snapshot

Specification Citation CJ2 Citation CJ2+
Model 525A 525A
Engines Williams FJ44-2C Williams FJ44-3A-24 with FADEC
Thrust 2,400 lb each 2,490 lb each
Maximum Takeoff Weight 12,375 lb 12,500 lb
Maximum Zero Fuel Weight 9,300 lb 9,700 lb
Maximum Landing Weight 11,500 lb 11,525 lb
Typical Max Cruise Approx. 407 knots Approx. 413 knots
Service Ceiling 45,000 ft 45,000 ft
Cabin Length 13 ft 7 in 13 ft 7 in
Typical Passenger Configuration 6 passengers (7–8 possible) 6 passengers (7–8 possible)
Avionics Collins Pro Line 21, often with Universal FMS Integrated Collins Pro Line 21 with FMS-3000
Garmin Retrofit Path Available for CJ2 Not generally available for CJ2+

Which One Makes More Sense?

The CJ2 and CJ2+ are not simply a good-versus-better comparison. They occupy the same airframe and cabin, but they can appeal to different buyers depending on budget, avionics preference, mission profile, and equipment.

The CJ2+ brings real improvements: FADEC engines, better climb performance, higher zero fuel weight, and a more integrated factory avionics package. It generally feels more refined and more capable in operation, especially for pilots who value the cleaner Pro Line 21/FMS-3000 cockpit and the ease of FADEC power management.

The CJ2, however, can represent a very strong value. There may be close to a million-dollar acquisition-cost difference between a CJ2 and CJ2+ depending on year, engine programs, avionics, cosmetics, and maintenance status. A well-maintained CJ2 with good engine program coverage, clean cosmetics, strong records, and a modern Garmin upgrade can be a very compelling airplane.

The right answer depends less on the nameplate and more on the individual aircraft. Buyers should look closely at engine program status, upcoming maintenance, avionics configuration, WAAS/LPV capability, ADS-B compliance, autopilot condition, display health, FMS setup, paint, interior, and weight-and-balance specifics.

Bottom Line

The CJ2+ is the more refined evolution of the CJ2. Its biggest advantages are FADEC, stronger climb performance, higher zero fuel weight, and a cleaner integrated avionics package. The CJ2 offers the same cabin and much of the same mission capability at a lower acquisition cost, with the added benefit that some CJ2s can now be modernized with a Garmin cockpit upgrade.

For an owner-pilot, business owner, or small flight department, both aircraft remain excellent light jet options. The CJ2+ is the more polished factory airplane, while the CJ2 can be the better value if it has the right maintenance history, engine status, and avionics configuration.