well no-one seems to know very much that is true about the F-35
The maker claims it's all OK, on budget and on track (and has done for over 10 years)
a lot of the potential users say it doesn't work right, may never work right and is costing a fortune as well as being so late it might make WWTen
The politicians take all sides
I can't see that anyone on here has any less authority or claim to being correct as that lot