America's F-35 Stealth Fighter vs. the Lethal F-15SA: Who Wins?

Dave Majumdar

Security, United States

America's best jets square off. Who wins this battle for the sky? 

When the Boeing F-15A first flew in July 1972, the Eagle was the ultimate air superiority fighter. Fast, high-flying, agile and built around a massive APG-63 pulse-doppler radar, the Soviet Union had nothing that could match it. Overtime, McDonnell Douglas—the F-15’s original manufacturer before its merger with Boeing—adapted the airframe into a potent multirole fighter that eventually became the F-15E Strike Eagle. While both the air superiority oriented F-15C and the strike-oriented F-15E will remain in service with the U.S. Air Force for decades to come, by far the most advanced current version of the Eagle has been ordered by Saudi Arabia. But will that be enough compete with Lockheed Martin’s F-35 Joint Strike Fighter?

Saudi Arabia has ordered some 84 new-build F-15SAs and 70 upgrade kits to retrofit their existing Strike Eagles to the new standard. When the massive $29.5 billion contract was signed December 2011, it was the largest foreign military sale in the history of the United States. In the ensuing years, Boeing has developed and tested the upgraded jets, which are powered by General Electric F110 engines rather than Pratt & Whitney F100s. The company is finally starting to get ready to deliver the aircraft. The first of the new jets rolled out of the Boeing plant in Saint Louis, Mo., earlier this earlier in April.

Perhaps the single most significant upgrade found in the F-15SA package is a fly-by-wire flight control system—previous versions of the Eagle used a hybrid computer augmented stability system. The addition of the fly-by-wire system allowed Boeing to reactivate the F-15’s two dormant outboard wing hardpoints that had always been present, but never used. The problem previously had been stability differences induced by carrying weapons on stations one and nine.

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