[jmvoodoo]

F-35s have flown over 1,000 combat sorties. When would you consider it "proven"?

[belter]

Bombing ISIS does not count. Here is an example of something that could really hurt.

"...The F-35 can only tolerate supersonic speeds at high altitudes for short bursts before it sustains lasting structural damage and the loss of stealth capabilities..." - https://nationalpost.com/news/canada/five-problems-with-amer....