EVALUATIONS OF SOVIET SURFACE-TO-SURFACE MISSILE DEPLOYMENT 16TH REVISION

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CIA-RDP78T05439A000400380049-7
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86
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December 28, 2016
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April 27, 2005
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49
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January 1, 1965
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REPORT
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Approved For Release 2005/06/08 : CIA-RDP78TO5439A000400380049-7 Next 5 Page(s) In Document Exempt Approved For Release 2005/06/08 : CIA-RDP78TO5439A000400380049-7 Approved Fora offignapMu$' f 0:9A J106 Pages EVALUATIONS SOV E { SU RFACE-TO-SURFACE MISSILE DEPLOYMENT 16TH REVISION A Report of the Deployment Working Group of the uided Missile and Astronautics Intelligence Committee 5X1 Declass Review by NGA. Approved For Release 2005/06/08 : CIA-RDP78TO5439A000400380049-7 TOP SECRET I I 2 1 7 EVALUATIONS OF SOVIET SURFACE-TO-SURFACE MISSILE DEPLOYMENT 16TH REVISION A Report of the Deployment Working Group of the Guided Missile and Astronautics Intelligence Committee t t 1 A I TOP SECRET TOP SECRET The Guided Missile and Astronautics Intelligence C'om- ?mittee (GMAIC) a she- to expre-- its appreciation to the National Photographic Interpretation Center for its assist- ance in the editing, illustration, and publication of this report. A i TOP SECRET TO-P SECRET GUIDED MISSILE ANDASTRONAUTICS 'TELLIGENCE COMMITTEE 25X1A 25X1A 1 Photozruphic Interpreter -upport i= pro%ided by the Photo- graphic \nal.\-i- Group. NPIC. NOTE: All corrc-pondenco rolati\o to thi- report -hould he directed to the Chairman, Guided \Ii --ile and \-tronautic-Intelligoncc?('otnmittoe(G\t.-\IC). TOP SECRET TOP SECRET This report, published bimonthly by the G\1AIC Deployment Working Group (D\%'G1, provides a comprehensive, ready-reference listing of all ICB\1, IRB\1, and \IRB\1 deployment locations, types of site configura- tions, photographic references, estimated construction and operational status, and other evaluations by the DWG. These data constitute the majority view of the DWG membership, and may not correspond pre- cisely to individual assessments by each member. Additional data may be added to future revisions. - -- - Dissemination of the report was previously limited to holders of the DWG report. Soviet Surface-to-Surface Missile Deployment. Because the information contained herein is both supplemental and self-sustain- ing. distribution will no longer be limited to holders of the above report. TOP SECRET TOP SECRET Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Sovi, ICBM Deployment . . . . . . . . . . . . . . . . . . . . . . . . . 1 Soviet IRBM/MRBM Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Table 1. Summary of Estimated Status of Identified ICBM, IRBM, and MRBM Launchers at Deployed Complexes . . . .. .. . . . . . . . . . . . . . 76 Table 2. Summary Evaluation of Soviet ICBM Deployment . . . . . . . . . . . . . . 77 Table 3. Summary Evaluation of Soviet IRBM Deployment . . . . . . . . . . . . 81 Table 4. Summary Evaluation of Soviet MRBM Deployment . . . . . . . . . . . . . 83 Table 5. Summary Evaluation of Soviet Fixed Field Sites (SSM Fixed Field Positions) . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . 90 Table 6. Composition of IRBM/MRBM Complexes . . . . . . . . . . . . . . . . . . . 94 A TOP SECRET TOP SECRET I Page Figure 1. Deployment of Soviet ICBM Complexes . . . . . . . . . . . . . . . . . . 2 Figure 2. Typical Configurations of ICBM Launch Sites, and Explanation of Types ............... ........................ 4 Figure 3. Artist's Concept of Typical Single-Silo Launch.Site in Midstage of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 4. Schematic Layout of Launch Areas, Aleysk ICBM Complex . . . . . 13 Figure 5. Launch Site C(3), Aleysk ICBM Complex . . . . . . . . . . . . . . 14 Figure 6. Schematic Layout of Launch Areas, Dombarovskiy ICBM Complex ....................................... 15 Figure 7. Launch Site B(3), Dombarovskiy ICBM Complex . . . . . . . . . . . . 16 Figure 8. Launch Sites A(1) - F(6) and Rail-to-Road Transfer Point, Imeni Gastello ICBM Complex . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 9. Schematic Layout of Launch Areas, Inzeni Gastello ICBM Complex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 10. Launch Site D(4), Imeni Gastello ICBM Complex . . . . . . . . . . . 20 Figure 11. Schematic Layout of Launch Areas, Uzhur ICBM Complex . . . . . 21 Figure 12. Launch Site B(2), Uzhur ICBM Complex . . . . . . . . . . . . . . . . . 22 Figure 13. Schematic Layout of Launch Areas,Zhangiz-Tobe ICBM Complex ....... ............................... 23 Figure 14. Launch Site A(1), Zhangiz-Tobe ICBM Complex . . . . . . . . . . . . . 24 Figure 15. Launch Site D7(6), Launch Group D, Olovyannaya ICBM Complex ....................................... 25 Figure 16. Probable Launch Sites D8, D9, and D10, Launch Group D. Olov.yannaya ICBM Complex . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 17. Cable Ditching, Launch Group D, Olovyannaya ICBM Complex . . . 26 Figure 18. Launch Site D2(2), Launch Group D, Olovyannaya ICBM Complex ............................. ....... 27 Figure 19. Launch Site E(6), Gladkaya ICBM Complex . . . . . . . . . . . . . . . 27 Figure 20. Launch Site G(7), Svobodnyy ICBM Complex and Launch Site K(10), Yurya ICBM Complex . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 21. Launch Sites E(5) and F(6), Drovyanaya ICBM Complex . . . . . . . 29 Figure 22. Artist's Concept of Type IA ICBM Launch Site . . . . . . . . . . . . . 30 Figure 23. Artist's Concept of Type IIA ICBM Launch Site . . . . . . . . . . . . . 31 Figure 24. Pad Al(l), Tyuratam . . .. ... .... .. .. ......... . 32 Figure 25. Launch Site A3(1.5), Tyuratam . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 26. Probable Erected Missile, Pad C1(3), Tyuratam . . . . . . . . . . . . 33 Figure 27. Launch Site D2(9), Tyuratam . . . . ... . . . . . . . . . . . . . . . . . . . 34 Figure 28. Launch Complex L(6), Tyuratam . . . . . . . . . . . . . . . . . . . . . . . 35 Figure 29. Launch Complex F(5), Tyuratam . . . . . . . . . . . . . . . . . . . . . . 36 TOP SECRET TOP SECRET ILLUSTRATIONS (Continued) 25X1 D Page Figure 30. Layout of Launch Complex F(5), Tyuratam . . . . . . . . . . . . . 37 Figure 31. Launch Site GI/G2(7), Tyuratam. . . ,w . . . . . . . . . . . . . . . 38 Figure 32. Layout of Launch Site G1/G2(7), Tyuratam . . . . . . . . . . . . . . . 39 Figure 33. Launch Site G3/G4(11), Tyuratam . . . . . . . . . . . . . . . . . . . . . . 40 Figure 34. Layout of Launch Site G3/G4(11), Tyuratam . . . . . . . . . . . . . . . 41 Figure 35." Launch Site G5/G6(12), Tyuratam . . . . . . . . . . . . . . . . . . . . . . 42 Figure 36. Launch Site G7(18), Tyuratam . . . . . . . . . . . . . . . . . . . . . . 43 Figure 37. Launch Site G8/G9(19), Tyuratam, in Mid (Top) and Late (Bottom) Stages of Construction . . . . . . . . . . . . . . . . . . . . . . . 44 Figure 38. Layout of Launch Site G8/G9(19), Tyuratam, in Mid(Top) and Late (Bottom) Stages of Construction . . . . . . . . . . . . . . . 45 Figure 39. Cable Ditching, Launch Complex G, Tyuratam . . . . . . . . . . . . 46 & 47 Figure 40. Probable Cable Ditching Under Construction Between Launch Site G7(18) and Launch Complex K(13), Tyuratam . . . . 48 & 49 Figure 41. Launch Complex H(8), Tyuratam . . . . . . . . . . . . . . . . . . . . . . 50 Figure 42. Layout of Launch Complex H(8), Tyuratam . . . . . . .. . . . . . . . . 51 Figure 43. Artist's Concept of Launch Complex 1(14), Tyuratam . . . . . . . . . 52 Figure 44. Launch Complex J, Tyuratam . . . . . . . . . . . . . . . . . . . . . . . . . 53 Figure 45. Launch Complex K(13), Tyuratam . . . . . . . . . . . . . . . . . . . . J4 Figure 46. Artist's Concept of Launch Complex K(13), Tyuratam . . . . . . .. 55 Figure 47. Deployment of Soviet IRBM/MRBM Complexes . . . . . . . . . . . . 57 Figure 48. Typical Configurations of IRBM/MRBM Launch Sites, With Associated Missile Systems . . . . . . . . . . . . . . . . . . .. 59 Figure 49. Destroyed IRBM Launch Site, Bayram-Ali . . . . . . . . . . . . . . . . . 64 Figure 50. Dismantling of Barracks-type Buildings, Traktovyy IRBM Launch Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Figure 51. Dismantling of Barracks-type Buildings, Zhuravka IRBM Launch Site . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . 65 Figure 52. Karakhobda IRBM Launch Site . . . . . . . . . . . . . . . . . . . . . . . . 66 Figure 53. Abandoned Novosysoyevka 3 IRBM Launch Site .. . . . . . . . . . _ . . 67 Figure 54. Taybola 3 IRBM Launch Site . . . . . . . . . . . . . . . . . . . . . . . . . 68 Figure 56. Zamshany Fixed Field Site, Brest MRBM Complex. . . . . . . . . . . 70 Figure 57. Rukuv Fixed Field Site, Dolina MRBM Complex . . . . . . . . . . . .. 70 Korosten MRBM Complex . . . . . . . . . . . . . . . . . . . . . . . . 70 Figure 59. Manzovka Fixed Field Site, Kremovo MRBM Complex. . . . . . . . . 71 Figure 60. Kobylnik Fixed Field Site, 'Postavy MRBM Complex . . . . ... . . . . 71 Figure 58. Yemilchino 1 and Yemilchino 2: Fixed Field Sites, 25X1 D 1 r r TOP SECRET TOP SECRET ILLUSTRATIONS (Continued) J t Page Figure 61. Type IV IRBM/MRBM Launch Sites . . . . . . . . . . . . . . . . . . . . 72 & 73 Figure 62. Plan View (Top) of Type IV Launch Silo, Paraul IRBM Launch Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Figure 63. Plan View (Side) of Postulated Type IV IRBM Launch Silo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Figure 64. Launch Area IC, Kapustin Yar . . . . . . . . . . . . . . . . . . . . . . . . 75 TOP SECRET TOP SECRET This report is the 16th Revision of Eval- uations of Soviet Surface- to- Surface Missile Deployment prepared by the Deployment Work- ing Group (DWG) of the Guided Missile and Astronautics Intelligence Committee (GMAIC). While information contained in this and previous revisions is self-sustaining, it serves to sup- plement the basic DWG report Soviet Surface- to-Surface Missile Deployment, v hich provides detailed information on individual launch facil- ities of the Soviet Strategic Rock? Forces. The basic report, dated 1 January 1962 (Control Number 1-14 0747-62KH), has been revised and updated on a periodic basis. Further updating is accomplished in reports prepared and pub- lished for GNIAIC by the National Photographic Interpretation Center. 15X1 D previous missions and other sources have provided additional information on the Soviet strategic ballistic missile deployment program. The new data are reflected in Table I and in the estimated operational status shown in Tables 2, 3, and 4. Cutoff date for information con- tained in this report is 20 December 1964. Soviet ICBM deployment activity since the 15th Revision is highlighted by the apparent completion of 6 Type ILIA sites and the aban- donment of another, and the identification of'2 confirmed and 3 probable single-silo sites at 2 complexes. At the 1 yuratam Missile Test Center, significant developmei.ts include the completion of 3 launch sites and continued con- struction activity at what now is assessed as a probable launch facility at Complex J. TOP SECRET CURRENT DEPLOYMENT The number of identified ICBM complexes remains at 24, with the search for new single- silo complexes on available photography nearing completion. See .Figure 1 for locations of' de- ployed ICBM complexes. The 24 complexes now contain a total of 271 confirmed and probable launchers, of which 150 are soft and 121 are hard. Included in the hard launchers are 40 single-silo configurations. Additionally, we are carrying 1 more -single silo in the possible category. Of the 271 confirmed and probable launch- ers, 215 are considered to be operational, in- cluding 69 in a hard configuration. In addition, we believe that 26 of the 35 confirmed launch- ers at the I yuratam Missile Test Center, in- eluding 9 hard, are operational. The ICBM sites have been designated by type as shown and explained in Figure 2. We continue to be unable to determine with con- fidence the missile system or systems associ- ated with single-silo configurations identifiedat Tyuratam and at deployed complexes. Neither can we ascertain the final. configuration(s) for these sites, nor for the new probable rail- served soft sites at Plesetsk. Therefore, we have not added diagrams of these sites to Figure 2 and will continue to refer to them as Type III (single) and Type 1B, respectively. Evaluation of all evidence received since our last revision has resulted in changes at the following complexes: ADDITIONS: IMENI GASTELLO, Launch Site F(6), Type III (single), under construction OI_OVY:\NNAYA, -Launch Site D7(6), Type III (single), under construction: Prob- able Launch Sites D8, D9, and D10, .Type III (single), under construction. DELETIONS: GLADKAYA, Launch Site E(6), Type ILIA, abandoned. N N'FI)IN -1 I N I. A N 1)~? Jt.~. Yedrovo Plesetsk MOSCow Kozelsk? .Teykovo ? Kostroma Yurya ?Verkhnyaya Saida Dombarovskiy ? Kartaly 0 Omsk. ? Itatka ,Gladkaya 0 Uzhur Imeni Gastello . 0 Novosibirsk ('--N?. Svobodnyy rill IIIIIRIF III N. RI 1.1'RI 11 I'II TCRKEY TYURATAM Drovyanayai ? MISSILE ?Aleysk Olovyannaya? TFCT rFNTFR I.~??. r" b10NGOLIA Zhangiz -Tobe IRAN d AFGHANISTAN ='~'?~i TOP SECRET 25X1 D A r I t SINGLE-SILO COMPLEXES tion. Spoil from the excavation is arranged in a neat flat-topped rectangle on I side and a smaller flat-topped square on the opposite 2_r-,X 1 aide. 0 (excluding Launch Group D at the Olov- yannaya Complex) now contain a total of 30 confirmed and probable silos in early and midstages- of construction. Total silos within the individual complexes range from a low of 2 (plus I possible) at Kartaty to a high of 6 at Aleysk, Imeni Castello, and Uzhur. Since the lath Revision, 4 of the 6 single- silo complexes (Aleysk, Dombarovskiy, Imeni Gastello, and Uzhur) have been covered by usable photography. From this and continuing analysis of previous coverage of all 6 complexes, a general picture of the Soviet construction program at these complexes can be depicted. Construction is begun at I or more launch sites at approximately the same time that construction of the complex support facility is initiated. No complex main road is evident, although this feature may be added as construction progresses. Instead, maximum advantage is taken of existing roads and, where these are lacking, it appears that equipment and vehicles are moved cross-country without bene- fit of any road preparation. These procedures differ markedly from those observed at the 18 older ICB\1 complexes, where the complex sup- port facility and a complex main road were brought to a fairly advanced stage of construc- tion before work on the launch areas .yas initiated. Construction techniques appear to be sin7i- lar at those single-silo launch sites on which good coverage has been obtained. A square excavation served by 2 earth ramps appears to be the first step in silo construction, followed by a silo coring in the approximate center of the excava- At Aleysk, the tops of these earth mounds have been surfaced with what appears to be concrete, suggesting that the earth mounding provides a hardstand at a specific level, prob- ably to facilitate future missile handling and servicing. No evidence of construction under the earth mounds has been detected. An artist's concept of a typical single-silo launch site in a midstage of construction is shown in Figure 3. We have noted that certain launch sites at 3 of the complexes--Aleysk A(1) andC(3), Dom- barovskiy B(3), and Imeni Gastello D(4)--have security fences encompassing a much larger area than those visible at other launch sites within the same complexes. These large fenced areas are similar in pattern to the fenced area at Launch Complex 1(14) at Tyuratam, which contains an L-shaped probable guidance facility (interferometer) as well as a launch silo. While no interferometer is yet visible at the deployed sites, the fenced areas are large enough to con- tain one. Furthermore, at Launch Site D(4) at Imeni Gastello, an excavation is visible near the silo in the same. relative position as a mounded structure in the apex of the. "L" at Launch Complex 1(14) at Tyuratam. An analysis of the complexes at Aleysk, Dombarovskiy, and Imeni Gastello suggests that each may contain troikas of sites, i.e., groups of 3, although at this stage other possibilities also exist. Such a grouping is reminiscent of Launch Sites A3(15) and B2(16), and Launch Complex 1(14) at Tyuratam. The 3 sites at Tyuratam are connected by what appear to be cable ditches (see 15th Revision). This feature is not yet evident at any of the 6 deployed single-silo complexes. TOP SECRET 25X1 Approved For Release 2005/06/08 : CIA-RDP78TO5439A000400380049-7 Approved For Release 2005/06/08 : CIA-RDP78TO5439A000400380049-7 TOP SECRET 25X1 D 25X1 D The Aleysk Complex was covered by Mis- ,25X1 D a 25X1 D 25X1 D 25X1 D 25X1 D t I 25X1 D but only the mission yielded interpretable results. The complex consists of a complex support facility, a possible rail- to-road transfer point, and 6 single-silo launch sites, all in a midstage of construction. The entire complex is served by a network of un- improved roads and trails. A schematic layout of the complex is shown in Figure 4. Construction of this complex was begun sub- sequent to Mission Ini- tial construction activity at the complex was observed on when Launch Site A(1) was identified. The complex support facility, negated on The 6 launch -sites are in a mi stage o construction and are typical examples of the construction techniques at single-silo com- plexes. All 6 have square excavations con- taining a silo under construction. Spoil from the excavations has been placed on either side of the silos, forming a rectangle on I side and a square on the other. At 5 of the 6 sites, the spoil piles appear to be level and surfaced with concrete. All 6 launch sites are inclosed by security fences. The fences at Launch Sites A(l) and C(3) inclose a considerably larger area than those at the other 4 sites, suggesting space for an interferometer, al- though none is evident at either site as yet. Launch Site C(3) is.shown in Figure 5. road transfer point, and 5 single-silo launch t sites, each containing a silo under construction. A schematic layout of this complex is depicted in Figure 6. The complex can be negated on Mission although a survey line for the rail spur was present at that time. First evidence of construction activity was 25X1fl observed on when the complex support facility and Launch Sites A(4) and B(3) were identified. Launch Sites A(4), B(3), C(2), and D(1) are in a midstage of construction; Launch Site E(6), 25X1 confirmed as a launch facilityoni 25X1 in remains in an early stage. The construction techniques at all Slaunch sites are characteristic of single-silo complexes. Four of the launch sites, (all except Launch Site L(6), are fenced; the secured area at Launch Site B(3) is larger than the others and similar in pattern to Launch Complex 1(14) at Tyura- tam. Launch Site B(3) is shown in Figure 7. Imeni Castello Complex (Figure 8), the most recently identified of the 6 single-silo com- plexes. Highlighted on this coverage is the identification of Launch Site F(6), a single- silo -facility in a midstage of construction. Construction at the complex can first be identified on Mission I I at which time activity can be observed at the complex support facility, the rail-to-road transfer point, and Launch Areas C(3), D(4), and E(5). Launch Sites A(1) and B(2) were not covered on this mission, and were first observed on Mission Launch Site good-quality stereo coverage of the The Dombarovskiy Complex is covered by poor -quality stereo photography on Mission I I the complex consists of a complex support facility, a possible rail-to- F{6) - is first complex is shown in Figure 9. 25X1 D 25X1 a ? 25X1 11 25X1 P 25X1 TOP SECRET 25X1 D 25X1 D TOP SECRET The complex is situated in an agricultural area of relatively flat-to-gently. rolling terrain. The various components of the complex are connected by a network of previously existing farm roads. No extensive road construction or repair is evident. Some deviation from existing roads has been necessary to reach the various construction sites. This has been accomplished with a minimum of new road sur- facing, and often is no more than tracking across open fields. In general, construction techniques at the launch sites conform to the pattern previously described, although the rectangular and square areas on either side of the silos are`'hot ap- parent. Security fences can be observed around 4 of the launch sites, including that at Launch Site D(4) whose sides average in excess of 1,600 feet (Figure 10). This site also contains an excavation near the silo, in the same relative position as the mounded structure at the apex of the L-shaped probable guidance facility at Launch Complex 1(14) at Tyuratam. Another large fence around Launch Site C(3) predates site construction and may not be significant. Kartaly Complex 25X1 D 25X1 D by l photography since Mission in and available information %vas presented in the 15th Revision. It consists of a complex support facility and I confirmed, 1 probable, and I possible single-silo launch sites, all in an early stage of construction. Construc- tion at this complex was probably initiated after Mission although only the complex support facility and the confirmed Launch Site B(2) can be negated on that photography. 25X1 D Uzhur Complex Mission rovided fair-quality coverage of the Uzhur Complex, but interpretation was hindered considerably by snow cover and low sun angle. The complex consists of a complex support facility, a rail-to-road transfer point, and 6 single-silo launch sites, all in a midstage of construction. A schematic layout of the complex is shown in Figure 11. Construction activity at this complex can first be identified on Mission At that time the complex support facility and Launch Sites B(2), D(4), and F(fr) were visible. Because of cloud cover, negation of the entire complex cannot be affirmed before However, based on construction timing, we believe that work at this complex began in late While construction techniques at this com- plex generally parallel those at- the other 5 single-silo complexes, certain differences are also apparent. Extensive effort has been made to improve existing roads leading to several of the construction areas. Additionally, because of the nature of the terrain, the square and rectangular areas on each side of the silos at some of the sites have been prepared by cutting into the sides of hills. The signature of these sites, however, is comparable to those at the other 5 complexes. Launch Site B(2) is shown in Figure 12. . Q 25X1 D' The Zhangiz-Tobe Complex is covered on Mission but the small scale and obliquity of the photography prevent interpretative results that would add to otdr knowledge of construction activity and site TOP SECRET I t 25X1 D I 25X1 D a 25X1 D ,25X1 D I 25X1 D e t TOP SECRET signatures. A diagram of this complex, based on previous coverage, is shown in Figure 13. This complex, the first single-silo complex to be identified, was first observed on Mission when the complex support facility and Launch Site A(1) were visible. While lack of coverage precludes negation prior to Mission we believe, based on construction timing, that work at this complex was initiated late in port facility and 5 launch sites, all in a midstage of construction. The signature of the launch sites, character- ized by a U-shaped area formed by a generally square excavation serviced by 2 inclined earth ramps, is similar to those at the other 5 com- plexes. Launch Site A(1) is shown in f figure 14. OLOVYANNAYA COMPLEX, cludes a definitive assessment at this time, but several general observations can be made. It is apparent that the overall configuration of the launch group and the method in which it is being constructed differ considerably from the configuration and construction techniques ob- served at the other 6 single-silo complexes. The silo excavations at Olovyannaya appear circular rather than U-shaped, cover a smaller area, and appear shallower. The silo structures also appear to be round, while those at the other complexes are square. Accurate mensural data cannot be obtained fromavailable photog- raphy, but it appears' that the silo corings and silo apertures at tote Olovyannaya launch group are somewhat smaller in diameter than those at the newer complexes. In summary, it appears possible that Launch Group D at Olovyannaya will accommodate a different missile system than will be employed at the other 6 complexes. Lack of high-resolution coverage at