Hypersonic Transport Model. High 3/4 top front view of model in Ames 40x80 foot wind tunnel. Bob Bishop in lower right.… https://www.rawpixel.com/image/441682/free-photo-image-airplane-nasa-aerodynamicsFree Image from public domain licenseSurplus Phoenix missiles mounted on the centerline pylon of NASA's F-15B research aircraft. Original from NASA. Digitally… https://www.rawpixel.com/image/440022/free-photo-image-weapon-missiles-navyFree Image from public domain license