Abstract :
At Safe Harbor, Pa., has been built the third major hydroelectric plant on the lower reaches of the Susquehanna river. With an ultimate installed capacity of 510,000 hp in turbines, it is destined to become one of the largest hydroelectric developments in the United States. Turbines are of the propeller type with automatically adjustable blades; they are said to be the most powerful of this type ever built. Many interesting details of the development are revealed in this article.
