Lockheed X-44 MANTA: The Stealth Jet That Never Flew Air Force Historical Lockheed X-44 MANTA: The Stealth Jet That Never Flew Farhan J. Satti (Chief Editor) March 18, 2026 0 Lockheed Martin, NASA, and the U.S. Air Force collaborated to develop the innovative fighter concept known as... Read More Read more about Lockheed X-44 MANTA: The Stealth Jet That Never Flew
