Pump rig at NACA's Lewis Research Center (now Glenn Research Center), c. 1956. For testing full-scale pumps for hydrogen, ammonia, hydrazine, and other rocket fuels.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...g_fullsize.jpg



Previously:

SpaceX gimbal thrusters - GIF
Painting the NASA logo - GIF
NASA rocket test platform - GIF
NASA Mercury capsule - photo
NASA boiling fluids rig - photo
World's largest vacuum chamber - photo