To hear Lockheed Martin (NYSE:LMT) CEO Marillyn Hewson tell it, everything's going just swell with Lockheed's new F-35 stealth fighter jet program. International buyers are "lining up" to buy the plane.

Singapore and Korea are both interested. Canada's in. Australia wants to buy 100 of the planes... but the truth is a bit more complicated than that.

Listen in, as Fool.com contributor Rich Smith explains how delays in the biggest weapons program Lockheed's ever been involved with are creating a sales opportunity for Boeing (NYSE:BA).