wo lisble to me. over thore, It is a lot easie. .o add another foot of conerete tian to start over again, if you can foresee a use for it on, Say, WILL, Your stateuant about not testing a fullestrength Class A is rather interesting. Tae eventual firing of a Class A device, - wuetner it is full yield or not, will de the governing taing in eny shore installation you night have, That 4swhat J was trying to get at. ; neu cmaarise' KCLLY: re Or airdrop st, maybe. ~ CELETEG | DELETED CIBSTNSrNo, I think it ie too big for that, This is a device, RAC s When we wont into CASTLI, with tiike frosh in our minds, we did the construction on Enya based on the idea of firing in the Ham rogion, for the powerhouse and permment structures, we used a yleld of 20 NT. It would be a little hard to design a structure, and therefore hard to eatimate the cost for a structure at Taongl, depending on whero you vere going to shoot, I.think you could make the worst assumption aud procosd fron. there, FELT: | Are you talking about desim pressures? GIBSINS: Yes, supposing we went shead develoving Taongl, where you think you might go with the yield ceiling, later on. I don" think you wuld ever see it over 15 HT clean, probably not over 5 UT dirty. FELT: You are talking now about a pemanent communications building of some sort? GISSTNS: Design criteria for any building. RACs Just as a generel giide, that tyne of building are we talking about? ‘You ean probably save money on anindividual shot by building light construction, but this is not a reasonable way of doing things. You are re-building sach time you increase the yield of a bord. FELT: I think there ie any eaty out for all this, You build for shielding as -37- of

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