I'm sorry if I'll be not so accurate in my description but, please, try to understand "core" of my question.
F-22, ignoring high cost of each aircraft, appear to be a successful project, developed and delivered in almost desired timeranges respecting requirements.
I sincerely don't understand why F-35, that initially was thought to have almost same stealth performances of F-22 but at an individual cheaper cost, is running into troubles, difficulties, risk of abandoment since years.
Develop is still ongoing and reliability and performances are still not satisfied. I thought that experience based on first stealth high perfromance fighter jet could help and speed up an aircraft like f-35 that should have lighter requirements but facts are demonstrating the opposite