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  1. Northrop YF-17 - Wikipedia

    The Northrop YF-17 (nicknamed "Cobra") is a prototype lightweight fighter aircraft designed by Northrop aviation for the United States Air Force 's Lightweight Fighter (LWF) technology …

  2. Why Don't F-13 And F-17 Fighter Jets Exist? Exploring The Rumors

    Jun 16, 2025 · The F-17 designation almost came to service in the 1970s. Northrop Aircraft (now Northrop Grumman) developed the YF-17 Cobra and flew prototypes in 1976 with some help …

  3. Why Was There No F-13 or F-17 Fighter Jets? - The National …

    Nov 27, 2023 · Though there wasn’t ever an F-17, there was the YF-17 Cobra, a prototype lightweight fighter aircraft designed by Northrop aviation for the United States Air Force’s …

  4. Military Mystery: Why Was There No F-13 Or F-17 Fighter Jets?

    May 9, 2023 · Instead, a YF-17 prototype (late 1960’s) lightweight fighter was designed to be cheaper than the F15 but lost out to the F16. So after a redesign, it became the F/A-18.

  5. The YF-17 Cobra Lost to the F-16 Fighter (But Became the F/A-18 …

    Nov 27, 2025 · Key Points and Summary – Northrop’s YF-17 “Cobra” lost the U.S. Air Force’s 1970s Lightweight Fighter competition to the YF-16, but it went on to shape American and …

  6. What Was The Northrop YF-17 Fighter Jet & Its Legacy?

    Mar 20, 2024 · The Northrop Grumman YF-17 Cobra was a lightweight fighter aircraft prototype designed for the United States Air Force (USAF) in the 1970s. At the time, it was believed that …

  7. Why haven't I heard of the F-17 fighter jet? Breakdown of fighter ...

    Dec 20, 2025 · The F-17 fighter jet is a typical example. It was originally developed by Northrop Corporation to participate in the U.S. Air Force's new generation light fighter program in the …

  8. YF-17 Cobra - GlobalSecurity.org

    Northrop produced the twin-engine YF-17 using breakthrough aerodynamic technologies and two high-thrust General Electric YJ101 engines. General Dynamics countered with the compact …

  9. Today in Aviation History: First Flight of the Northrop YF-17

    Jun 9, 2025 · Though it never entered production, the YF-17 was the critical bridge between Northrop’s fighter designs and the frontline carrier-based F/A-18 Hornet. Its legacy lives on in …

  10. Northrop YF-17 Cobra - Fly a jet fighter

    The Northrop YF-17, commonly known as the Cobra, was a prototype fighter aircraft developed in the 1970s. It was designed as a lightweight, single-seat fighter with excellent agility and high …