The fact that the Air Force’s new 6th-Gen aircraft has taken to the skies raises too many interesting questions to engage at one time. Many might wonder, who built the one that flew already? What might it mean for the F-35 and F-22?

While the actual vendor responsible for producing the first Next Generation Air Dominance 6th-Gen stealth fighter to fly is not available for understandable security reasons, there are only a handful of vendors capable of engineering something like this. While specifics are not known or available, and no vendor has actually confirmed that a prototype actually exists, some of the main players likely capable of building a 6th-Gen aircraft might be Lockheed Martin, Northrop Grumman or Boeing, to name a few.

Lockheed and Northrop of course have extensive experience and expertise regarding stealth technology, an attribute any 6th-Gen fighter is most likely to incorporate. However, there is little value in speculating given the importance of secrecy to the project. After all, next to nothing is of course known about the new, fast-progressing B-21 stealth bomber slated for its first flight in the next year or two.

However, it takes little imagination to examine many of the most cutting-edge technical trends with a mind to their likely impact upon any kind of new 6th-Gen platform. One immediate and interesting question relates to the F-35, which the Air Force plans to fly and upgrade until 2070.

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While early subcomponent prototyping and conceptual was underway over the last year, some raised the question as to whether it made sense to even build a new airframe given the promise and sophistication of the F-35. There are two interesting points here, one is that there likely are technological advances significant enough to inspire an interest in building an entirely new platform, and the other is the expectation that a huge priority will be placed upon 5th-to-6th Gen interoperability and massive amounts of continued F-35 modernization.

The Air Force is prototyping what its future stealth fighter jets will look like. (Lockheed Martin)

As for the first point, some early questions seem to have been resolved to a certain extent, given that a new 6th-Gen aircraft has already flown. Previous deliberations regarding a 6th-Gen fighter balanced themselves upon what may at the time have been the unknown maturity of various promising new weapons and technologies nearing a threshold of operational possibility. For instance, some now-in-development next-generation stealth technologies, including new radar-evading configurations, coating materials and advanced thermal-signature reduction are fast-approaching levels of combat readiness. Also, work on new stealth or artificial-intelligence-enabled sensors to ensure overmatch for decades to come may be showing promise as well.

Air Force developers seem to have come to the belief that new generations of stealth-fighter technology were sufficiently “approaching” if not “here,” inspiring a wish to build a new platform and push the current “art-of-the-possible” to the maximum extent.

This challenge, explored by a Naval Postgraduate School essay called "The 6th-Generation Quandry,” posed the question as to whether it might be equally if not “ more effective to postpone formal sixth-generation development until truly breakthrough advances emerge, while pursuing advanced variants of current, yet upgradeable platforms in the interim.

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The 2016 paper, from the Naval Postgraduate School Acquisition Research Program, cites a handful of current systems showing significant long-term promise. The paper cites “new models of the F-35 optimized for air combat,” the emerging B-21, drone-launching C-130 “mother ships” and “weapons truck arsenal planes” are positioned to leverage current technological progress.

This issue, framed years ago by this essay, seems to have evolved in some interesting ways, at least to the point where the Air Force decided to go ahead and “build” a new 6th-Gen aircraft.

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In and of itself, the decision answers some questions and seems to suggest that indeed sufficiently impactful new technologies were here or arriving to an extent justifying the interest in building a new jet. At the same time, the F-35 and F-22 are going nowhere.

-- Kris Osborn is the Managing Editor of Warrior Maven and The Defense Editor of The National Interest --