This bow thruster retracts into the ship. Notice the plating on the bottom, it is representative of the hull of the ship. We can either lower it or operate it inside the hull.
Bow Thruster
Image courtesy of Tim Monaghan. Download larger version (jpg, 4.0 MB).

This bow thruster retracts into the ship. Notice the plating on the bottom, it is representative of the hull of the ship. We can either lower it or operate it inside the hull.

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