Richard Aboulafia, an aviation expert at Teal Group, said there was no basis for the cost claims. “He is completely making stuff up arbitrarily,” he said. “That doesn’t mean that one day that there won’t be cost problems. It is just way too early.”
I like that he is questioning the amount but does he realize the specialized equipment involved?
He also tweeted $ 4 billion for a single jet, the actual cost is for 2...
Lastly, there isn't another US manufacturer who can produce the planes...he could outsource the job to the French, Russians or Chinese.