NASA has developed special probes that will fly aboard F-15B jets trailing closely behind its X-59 "quiet" supersonic jet in order to measure the shock waves it produces.

While most nations have retired the nearly 70-year-old F-5 fighter, it remains a key component of Iran’s aging air force.

Scientists recorded sonic booms created by NASA's F/A-18 and F-15D jets for use in the agency's flight test plan for the X-59 Quesst "quiet" supersonic jet.

American space agency NASA flew two F-15 jets with measuring tools on board designed to measure the shock waves generated by the X-59 experimental plane.

Iran claims it has produced a new, advanced fighter plane. But the photographs show an F-5F. (All images credit: Tasnim News ...