The Gen Three Cessna Citation, Textron's Flight Test Marathon, and the Light Jet Certification Countdown to Twenty Twenty-Six

Textron Aviation has logged 1,220 flight test hours on the third-generation Cessna Citation light jets - the CJ4, CJ3, and M2. The program targets FAA certification for the CJ4 Gen Three in 2026, with the CJ3 and M2 Gen Three following in 2027. For anyone flying or planning to fly a light jet, this is the most significant update to the Citation CJ line in years.

What Is the Gen Three Program?

The Citation CJ family has defined single-pilot light jet operations for decades. The original Citation Jet, which first flew in 1991, was a milestone in business aviation - it was among the first jets a single certificated pilot could legally fly under Part 91, opening jet flying to a much wider range of owner-operators.

The family grew from there: the CJ2, CJ3, CJ4, and the entry-level M2, each incrementally more capable than the last. But avionics age. Competitors have modernized. Passenger expectations have shifted. The Gen Three program is Textron’s direct response.

What’s Actually Changing in the Cockpit

The centerpiece of Gen Three is a new Garmin flight deck installed across all three variants. That means touchscreen interfaces, enhanced synthetic vision, improved connectivity, and integration with the airspace tools pilots rely on today.

This is not a cosmetic refresh. Replacing the flight deck of a certificated aircraft and integrating new systems at the regulatory level is substantive engineering work - and it’s exactly what those 1,220 flight test hours represent.

What 1,220 Flight Test Hours Actually Means

The FAA requires manufacturers to demonstrate through rigorous flight testing that every system performs across the full operating envelope. Takeoff and landing performance across the weight range. High-altitude cruise. Degraded system behavior. Autopilot certification. Single-engine procedures. Every claim in the flight manual needs actual data from actual flights.

The Citation jets are certified under Part 25 as transport category aircraft, which means that process is exhaustive by design. Simulation and engineering models don’t satisfy the FAA - flight test data does.

1,220 hours signals the program is well past early exploration and envelope expansion. Textron is deep in the documentation and validation grind that precedes a certification application.

The Three Aircraft and Their Timelines

CJ4 Gen Three - targeted 2026

The CJ4 is the flagship of the CJ family. It seats up to 10 passengers, carries a range of approximately 2,165 nautical miles, and cruises at around 451 knots true airspeed. For a single-pilot certificated aircraft, those numbers remain competitive with anything in the light jet market. Certifying the CJ4 first makes sense: it’s the most complex variant, and lessons learned carry forward to the smaller aircraft that follow.

CJ3 Gen Three - targeted 2027

The CJ3 seats up to 9 passengers with a range of approximately 2,000 nautical miles. It’s a strong platform for operators flying mostly shorter regional legs where the CJ4’s full range capability exceeds the mission. The Gen Three avionics keep it competitive in its segment.

M2 Gen Three - targeted 2027

The M2 is the entry point into Citation jet ownership - up to 7 passengers, range of approximately 1,550 nautical miles, purpose-built for shorter regional trips. From a market perspective, the M2 update may be the most significant. First-time jet buyers are highly sensitive to cockpit modernity, and the Gen Three package addresses that directly with the kind of touchscreen interface buyers now expect.

How FAA Certification Works in This Context

When Textron says it’s targeting FAA certification, the process typically runs through an amended Type Certificate or a Supplemental Type Certificate, depending on the degree of modification to the original type design. The Citation jets already hold their base Type Certificates. The Gen Three avionics integration requires explicit regulatory approval before these aircraft can be sold or flown commercially under the new configuration.

That process runs through the FAA’s Aircraft Certification Service. Textron has a long working relationship with the FAA’s certification office in Wichita - close to Textron’s home base and deeply familiar with the Citation product line. That familiarity doesn’t shortcut the process, but it enables efficient working through the documentation and data reviews that dominate the final certification push.

Training infrastructure is being built in parallel. Substantially changed avionics mean updated training requirements. Flight training providers supporting Citation operators will need updated simulator software and course materials. Pilots transitioning from current-generation to Gen Three aircraft should expect differences training on the new flight deck. That pipeline is built during certification so it’s ready when first deliveries begin.

What This Means for Current Citation Operators

If you’re flying a CJ4, CJ3, or M2 today and are within a few years of an upgrade decision, the Gen Three timeline is relevant to your planning. First customer deliveries could realistically begin several months after each certification milestone - meaning potential late-2026 availability for the CJ4 and sometime in 2027 for the CJ3 and M2.

The market timing matters too. When a manufacturer announces a generational avionics upgrade, residual values on the outgoing generation typically soften as the new variant approaches entry into service. That’s a repeating pattern across aircraft programs. Sellers of current-generation Citations may face more motivated buyer expectations as the Gen Three dates draw closer. Buyers, conversely, may find favorable pricing on current-generation aircraft in that window.

Why Textron Is Making This Investment Now

The light jet segment is genuinely competitive. Embraer’s Phenom series is a strong presence. Honda Aircraft’s HondaJet offers a modern flight deck at a competitive price point. The Cirrus SF50 Vision Jet brought a single-engine jet to the personal aviation market. Daher’s TBM turboprop competes for the same buyer profile considering an M2.

Operator loyalty to the Citation CJ line is real, but it has limits when a competitor’s cockpit looks a decade newer. The Gen Three program keeps the airframes and powerplants operators know - the Williams FJ44 engines powering the CJ series are proven and continue to benefit from steady evolutionary development by Williams International - while replacing the systems that show their age.

A new brain in a proven airframe with proven engines is, for existing Citation operators, a compelling proposition.

Key Takeaways

Textron has logged 1,220 flight test hours on the Gen Three Citation CJ program as of current reporting
The CJ4 Gen Three targets FAA certification in 2026; the CJ3 and M2 Gen Three target 2027
The upgrade centers on a new Garmin touchscreen flight deck with enhanced synthetic vision and modern connectivity - not a new airframe or engine
Current-generation Citation owners should factor the Gen Three timeline into upgrade and resale planning, as residual values typically soften ahead of new-generation entry into service
The Gen Three program is Textron’s competitive response to modernized offerings from Embraer, Honda Aircraft, Cirrus, and Daher

Source reporting: Flying Magazine