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 the diagram on the side of the plane used to train pilots for weightlessness. The plane is sitting on the tarmac. The diagram shows the speeds and the trajectory of the plane as it enters and then leaves the zero gravity state. 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