The Administrator is authorized, in implementation of the unitary plan, to construct and equip transsonic or supersonic wind tunnels of a size, design and character adequate for the efficient conduct of experimental work in support of long-range fundamental research at educational institutions within the continental United States, to be selected by the Administrator, or to enter into contracts with such institutions to provide for such construction and equipment, at a total cost not to exceed $10,000,000: Provided, That the Administrator may, in his discretion, after consultation with the Committees on Armed Services of both Houses of the Congress, vest title to the facilities completed pursuant to this section in such educational institutions under such terms and conditions as may be deemed in the best interests of the United States.