Launch tube (TRS)
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The launch tubes fit one ship at a time. Each one is manned by a launch supervisor. After running the preliminary checks on the ship -- usually a Viper -- the launch supervisor presses the launch button and the clutch puches the Viper out at an incredibly quick speed. The launch tubes are separated from the hangar deck by large airtight metal doors. When these doors close after the ship is in the tube, the doors at the end of the tube open, allowing the tube to open up into space.
Alert Fighters are kept in the tubes at all times just in case a threat appears and the CAP cannot reach it in time or such.
The launch tubes are used to allow the dead a military space funeral when there is no earth in which to bury them in (Act of Contrition).