When Russia licensed China to manufacture their own Su-27s, China broke the contract by reverse engineering the aircraft, making improvements, and then building them completely on their own, stealing Russian technologies.
“While the US can draw a certain degree of confidence in its capabilities from the success of the mission, there’s a risk of reading too much into that success, especially when it comes to weapons made by American rivals in the hands of other militaries.
Some of the failures of the Venezuelan-operated foreign air defenses, for example, have been attributed to issues like inactivity, incompetence, and a dearth of functional cohesion between different systems.
Wins in Venezuela during Operation Absolute Resolve or in operations against Iranian-operated Russian-made air defenses may not translate the same in fight with Russia or China.”
Although stealth delays radar detection, its more important role is making stealth planes hard to target with weapons. The wide bands of radars that can detect the planes are not able to locate them accurately enough to target them with weapons. No stealth is invincible, so mission planning is also key.
The F-35 is vastly superior to the Gripen E. By comparison, the Gripen E is the budget choice. If the goal is to limit dependence on the mercurial United States, the Gripen is dependent on American parts.
The U.S. may not have enough pilots to win a long war against a peer competitor. It takes a long time to train pilots, and they don’t stick around because flying commercially pays more. The pilots we do have don’t get enough flying hours. The U.S. Air Force has similarities to Japan and Germany’s air forces at the beginning in WWII. Germany and Japan did not have enough pilots or a robust enough pilot pipeline to maintain skilled pilots throughout the war.