A new Pentagon forecast showing the total cost of owning and operating a fleet of F-35 Joint Strike Fighters topping $1 trillion over more than 50 years has caused a case of sticker shock in Washington.

And that price tag doesn’t even include the $385 billion the Defense Department will spend to purchase 2,500 of the stealthy planes through 2035.

During a Senate hearing this month, Sen. John McCain (R., Ariz.) called the $1 trillion figure “jaw-dropping,” particularly when compared with the costs of operating other aircraft. . .