How noisy is it inside a fighter jet cockpit?

The inside of a fighter jet cockpit can be noisy, but you may be wondering how noisy and what can be done about it? Here's ...

The F-35’s helmet alone costs half a million dollars, and only a quarter of the fleet can fly: inside the jet’s spiraling costs

Half-million dollar helmets and falling readiness: why the F-35 program is facing its most expensive and difficult test yet.