Mechanical Engineering students from Oregon Tech on a trip to NASA. Six students participated in the trip and the experiments, accompanied by their instructor. The photograph shows a board with a diagram on it. The graph shows KC-135A aircraft trajectory in a typical zero gravity maneuver. The vertical axel shows altitude in feet and the horizontal shows maneuver time in seconds. This photo is one of the series of 413 donated to the University Archives by Marye Hefty, Oregon Tech Communications teacher, who acted as journalist and photographer on the trip