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יומן העלאה מקורי

• 2008-03-19 21:16 EdgarDurbin 1315×1607×8 (215771 bytes) {{Information |Description=Block II Instrument Units. Version 1 (top) had pressurized tubular sections and the IU was 58 in tall. Version 2 (bottom) was only 34 in tall and did not have pressure vessels, markedly reducing weight. |Source=Saturn I Summary,