US Top Secret Aircraft Invincible Spacecraft | Military

US Top Secret Aircraft Invincible Spacecraft | Military Stealth aircraft are designed to avoid detection using a variety of stealth technologies that reduce reflection/emission of radar, infrared,[1] visible light, radio-frequency (RF) spectrum, and audio, collectively known as stealth technology.[2] Development of stealth technology likely began in Germany during World War II, the prototyped Horten Ho 229 powered by twin BMW 003 jet engines being described as the first stealth aircraft.[3] Well-known mode