The SR-71 remained the world’s fastest and highest-flying operational manned aircraft throughout its career. From an altitude of 80,000 ft (24Â km), it could survey 100,000Â square miles (260,000Â km2) per hour (72 square kilometers per second) of the Earth’s surface. In addition, it was accurate enough to take a picture of a car’s license plate from this… Continue reading Fastest Plane