6C Data writ u_ Date ret'd xL;TIFIC 72-71,UTIGENCE, CIA; Request for Clearance and Perr1.saica `.e P+.blUt C' F-B: T:' y S CS; iT SPACE RES.. EA.RCE PRCGR.AM - SPACE t1E;H ICI n. u Clief, inte'.Li3ence Prcd;:cticl Staff/oil, :?r, Robert E. Olson 2064 L Bldg P:t N_. f , ?..ic .~... _r_s:F1etd.) intell. lb. M M--~ - Approved as presented below. 15 January 1960 DAT2 Internal structural members and fittings within a space vehicle, while not subject to direct heating, will be subjected to relatively high temperatures and to rapid temperature changes. With suitable design, however, and possible cooling, the anticipated service temperatures of internal components may be sufficiently below the sin temperature to permit the use of more conventional alloys of con- struction such as stainless steel or titanium alloys and even certain of the aluminum and magnesium alloys. The USSR produces a variety of starless steels sL:m iar in composition to those produced in the West. Soviet titanium technology is also similar to that of the West and a number of alloys are being produced on a limited scale. Aluminum and magnesium are also produced in the tESR in a variety of ccmpasitions. Observations of models of Soviet. satellites and the Maehta space probe and its carrier rocket indicates that aluminum is the preferred material of construction. Reports on a Soviet missile production facility, Plant 82, Thshino, claim that duralumimim and stainless steel sheets were used for missile skins and stainless steel for the nose cones. -F-r-47-1-ea-se tc: Fo.eibn Governments s) MI on-USIB Agency(ice) Class if J Cat, oft 76082

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THE SOVIET SPACE RESEARCH PROGRAM - SPACE VEHICLES