123 (2) in time of war or national emergency, by other units of the armed forces or by the United States for any other purpose. §2237. Supervision of construction Any construction, expansion, rehabilitation, or conversion under this chapter may be performed under the supervision of the Chief of Engineers of the Army or the Chief of the Bureau of Yards and Docks of the Navy. §2238. Army National Guard of United States; Air National Guard of United States: limitation on relocation of units No unit of the Army National Guard of the United States or the Air National Guard of the United States may be relocated or withdrawn under this chapter until the governor of the State or Territory, or Puerto Rico, or the commanding general of the National Guard of the District of Columbia, as the case may be, has been consulted. CHAPTER 135.—ENCOURAGEMENT OF AVIATION Sec.
2271. Design competitions: advertisement; selection of winner. 2272. Design competitions: rejection or purchase of designs; contracts; conditions. 2273. Right of United States to design; right of designer to patent; right to sue United States. 2274. Procurement for experimental purposes. 2275. Contracts; review of decisions. 2276. Inspection and audit of plant and books of contractor; criminal provisions. 2277. Appropriations; availability. 2278. Purchase of sample aircraft. 2279. Aircraft: restrictions on alien employees of contractor.
§ 2271. Design competitions: advertisement; selection of winner (a) To encourage the development of aviation and to improve the efficiency of aeronautical war material for the Army, Navy, Air Force, and Marine Corps, the Secretary of each military department, before procuring new designs of aircraft, aircraft parts, or aeronautical accessories, shall invite the submission of new designs thereof in competition, as follows. (b) An invitation for the submission of a design shall be made by advertisement in not less than three leading aeronautical journals for a period of 30 days, and in such other manner as the Secretary of the military department concerned considers advisable. Such an advertisement shall specify a time within which designs and prices may be submitted. This time may not be less than 60 days after the expiration of the 30-day advertising period. Each submission shall be sealed and shall contain the design submitted, a statement of the price for which the design or any part of it would be sold to the United States, and a graduated scale of prices for which the designer is willing to construct all or any part of a designed item. The submission shall be kept sealed until the expiration of the specified time. No design mailed after that time may be considered. (c) Each advertisement under subsection (b) shall state in general terms the kind of aircraft, aircraft parts, or aeronautical accessories