Early in its combat testing, a test pilot's damning report leaked to the press and exposed the world's most expensive weapons system, the F-35, as a bad dogfighter that the F-16 routinely trounced in mock battles.
But new videos leaked from the US Air Force's F-35 demo or stunt flying team show the jet making head-spinning turns that older jets could never hit.
"Overall, the most noticeable characteristic of the F-35A in a visual engagement was its lack of energy maneuverability," the pilot wrote.
the U.S. Air Force F-35 Lightning II joint strike fighter.
(U.S. Air Force photo by Samuel King Jr.)
"The F-35 was at a distinct energy disadvantage in a turning fight and operators would quickly learn it isn't an ideal regime... Though the aircraft has proven it is capable of high AOA [angle of attack] flight, it wasn't effective for killing or surviving attacks primarily due to a lack of energy maneuverability," he continued.
Furthermore, according to the pilot, there was basically nothing the F-35 could do to escape getting killed by the F-16's gun. Any move he tried to escape the F-35's cannon read as "predictable" and saw the pilot taking a loss.
But the F-35 program and its role in dogfights hadn't been as well figured out back then.
Since then, the F-35 has mopped up in simulated dogfights with a 15-1 kill ratio. According to retired Lt. Col. David Berke, who commanded a squadron of F-35s and flew an F-22 — the US's most agile, best dogfighter — the jet has undergone somewhat of a revolution.
New moves, new rules
In the video, the F-35 pilot takes the plane inverted, hits a tight loop, and appears to pause in mid-air as he enters a flat spin that makes his hundred-million-dollar jet appear like a leaf floating down towards earth. (Really better to watch than read about it.)
The flat spin move is often used by F-22 and Russian fighter pilots to show off the intense ability of their planes to sling the nose around in any direction they wish.
According to Berke, this F-35 stunt "demonstrates what the pilots and the people around the aircraft have always known: It's vastly superior to almost anything out there," in terms of agility.
Furthermore, according to Berke, an F-16 could not hit the move shown in the demo team's video.
Berke and others close to the F-35 program have described to Business Insider a kind of breakthrough in the maneuvering of the F-35 throughout its development.
Berke said the video proves that the F-35 is a "highly maneuverable, highly effective dogfighting platform," but even still, he wouldn't use that exact maneuver in a real dogfight.
The flat spin is "not an effective dogfighting maneuver, and in some cases, you would avoid doing that."
F-16 Fighting Falcons.
(U.S. Air Force photo by Airman 1st Class Joshua Kleinholz)
"If me and you were dogfighting and we're 2 miles away, and I had a wingman 5 miles away, you'd be super slow and predictable and easy for him to find," due to executing the move, said Berke.
But despite the F-35's impressive moves and ability to win dogfights, Berke said he'd stay on mission and try to score kills that take better advantage of the jet's stealth.
"I want to avoid getting into a dogfight, but if I had to I'm going to be able to outmaneuver most other aircraft," he said.
After all, the F-35's makers never intended it as a straight World War II-era Red Baron killer, but a rethink of aerial combat as a whole.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
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