English: Engineers and technicians at the Marshall Space Flight Center placed a Saturn V ground test booster (S-IC-D) into the dynamic test stand. The stand was constructed to test the integrity of the vehicle. Forces were applied to the tail of the vehicle to simulate the engines thrusting, and various other flight factors were fed to the vehicle to test reactions. The Saturn V launch vehicle, with the Apollo spacecraft, was subjected to more than 450 hours of shaking. The photograph shows the 300,000 pound S-IC stage being lifted from its transporter into place inside the 360-foot tall test stand. This dynamic test booster has one dummy F-1 engine and weight simulators are used at the other four engine positions. The January 19, 1966 Marshall Star ran this image with the caption, "DYNAMICS S-IC MOVED—MSFC technicians last week placed a Saturn V ground test booster (S-IC-D) into the Center's new dynamic test stand. Fog and clouds hovered around the top of the 360-foot tall test stand most of the day while the 300,000 pound stage was being lifted from its transporter into place inside the stand, said to be the tallest building in Alabama. While certain tests will be conducted using only the booster or first stage, later two upper stages, an instrument unit and a dummy Apollo spacecraft will be placed atop the booster for dynamic testing. The 360 foot tall space vehicle will be 'shaken' to determine vibration and bending characteristics. This 139-foot long test booster, built by the Boeing Co. at the Michoud Assembly Facility in New Orleans, is one of four being moved between various assembly and test stations at the Marshall Center during the next 10 days. The dynamic test booster has one dummy Rocketdyne F-1 engine; weight simulators are used at the other four engine positions."