How to get URL link on X (Twitter) App
Year 1954, 3 years before Sputnik 1 becomes the first satellite to orbit the Earth, USAF starts the WS-117L spy satellites program, with first drawing being satellites carrying TV Cameras, broadcasting their data using radiowaves.
Let's review the basic history of the aircraft. The F-117 was developed by Lockheed Martin in 1978, flew for the first time in 1981 and was revealed to the public in 1988.
First of all : WHAT is this chart ? It’s the curve representing the True Mach Number linked to the Indicated Mach Number in the T-38(N), taken from the NASA T-38(N) 2003 Flight Manual.