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Chapter 3: Subsystems / Vehicles / Piloting a Vehicle

Vehicle Momentum

Source Gamemastery Guide pg. 175
A vehicle in motion builds up momentum that keeps it in motion. Each round, if the vehicle has moved in the previous round, the pilot must either use another move action or Stop the vehicle. If the pilot does neither of these things on their turn (even if the pilot Delays), the vehicle continues to move and becomes uncontrolled, as described in Uncontrolled Vehicles on page 176.