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 ===1.7.1 Salyut 1-Type Soyuz Specifications===
 * Launch weight .......................................... about 6800 kg
 * Length ..................................................... about 7.5 m
 * Span across solar arrays .......................... 10 m
 * Diameter of habitable modules ................... 2.2 m
 * Maximum diameter ................................... 2.72 m
 * Habitable volume ...................................... about 10 m3
 * Number of crew ........................................ 3

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1.7.2 Salyut 1-Type Soyuz Notable Features

 * Carried three crew, who did not wear space suits during flight.
 * Equipped with a probe and drogue docking system permitting internal crew transfer (figure 1-19).
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 * Carried solar arrays which could be tied into the Salyut 1 power system, increasing the amount of energy available to space station systems.
 * Lacked the toroidal tank or pressurized instrument compartment in the aft skirt of the Original Soyuz spacecraft.
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 * Orbital module was shortened to 2.65 m in length (from about 4 m) by deletion of the external crew transfer docking system probe and frustum, and a docking system for internal crew transfer was added.
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1.7.3 Salyut 1-Type Soyuz Mission Descriptions
For information on Salyut operations during these Soyuz missions, see section 2.2.3. Dates are launch to landing.