co ~ C and "acceleration" may mean, at best, merely meeting it. Feb, Architect-Engineer selected, 1, 1954 . 1, Designs and Specifications completed by Arch-Eng. 1955. Aprill.... Construction begins. July 1. 2. 6 0 6 Core design frozen and core fabrication begins. August 1... . Designs of specific components by Argonne completed. Feb, 1, 1956, All construction not directly connected with reactor completed. Pre~operational testing begins. August 1. . 2 Dec. 31, 1956 eo Oe a ee eee me e Sept. Reactor becomes critical. In our opinion, the most fruitful "acceleration" step would be to allow Dr. Zinn the maximum freedom possible in contracting.* Argonne's program on the Boiling Reactor seems promising, enthusiastic and aggressive. Specific plans will doubtless undergo many modifications, dictated by concurrent we ee eee oe OE LE an ae developments, up to the deadline when the design must be frozen. Within the time deadlines flexibility is vital. We have pondered the question of how the Boiling Reactor might fit into the "Reactor-of~the-Year" concept. This concept is not well-defined in our *Dr. Zinn advised on November 4 as follows: 1. The Architect-Engineer (Sargent and Lundy) started work late in 2. A $600,000 lump-sum contract with Allis-Chalmers for turbine and August. all equipment exterior to the reactor was signed about October lst. Their equipment is to be leak-proofed just as if heavy water were to be used. 3, The contract for the reactor vessel and all switch-gear is to be let in 4 to 6 weeks.