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ATV SM
Part of ATV
European space tug. Study 1985. The unpressurized ATV Service Module included propulsion systems, electrical power (including solar arrays), computers, communications and most of the avionics.

Status: Study 1985. Gross mass: 8,363 kg (18,437 lb). Unfuelled mass: 5,500 kg (12,100 lb). Height: 3.28 m (10.76 ft). Diameter: 4.40 m (14.40 ft). Span: 22.30 m (73.10 ft).

With its own flight-control and propulsion systems, the ATV had a high level of autonomy which allowed it to stay in free flight for long periods of time, as well as to dock even if the Station was totally dormant and unmanned. After docking, these systems were used to perform ISS attitude control, debris avoidance maneuvers and to raise the Station's orbit to overcome the effects of atmospheric drag. On completion of the resupply mission the systems would de-orbit the spacecraft, carrying up to 6.4 metric tons of used equipment and general ISS waste in a controlled destructive reentry high above the Pacific Ocean. The SM consisted of the following subsystems:



Family: Space Tugs. Country: Europe. Launch Vehicles: Ariane 5. Agency: ESA, Cannes.

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