F213_O2S-1_D276SS_L241.jpg F213 O2S-1 D276SS L240ThumbnailsF213 O2S-1 D276SS L242F213 O2S-1 D276SS L240ThumbnailsF213 O2S-1 D276SS L242
"11.2. External tank

11.2.1. Overall dimensions, m:
length - 56.2
oxygen tank diameter - 10.36
hydrogen tank diameter - 8.37

11.2.2. Mass characteristics, t:
when fully fuelled - 982
at launch - 977.4
at MTKS-I first stage separation - 632.5
at orbiter separation - 67.9
working fuel reserve - 909.5
refillable fuel supply - 917.5

11.2.3. Operational lifetime, flights - 1

11.3. First stage of MTKS-I

11.3.1. Number of modular blocks A - 2

11.3.2. Overall dimensions of blocks A1 and A2 of the first stage, m:
length - 43.8
diameter by tanks - 6.0
on fairings of steering engines - 9.2

11.3.3. Mass characteristics, t:
fully fueled - 1647
at launch - 1638
at separation - 162
working fuel reserve - 1476
refillable fuel supply - 1507.5

11.3.4. Fuel components:
oxidizer - liquid oxygen
fuel - RG-1

11.3.5. Number and types of engines:
first stage - 2 x RD-150
second stage - 4 x RD-1246"

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