The number, type and location of the propellers depends on the power, draft and intended purpose of the vessel. Port Engineering, Volume 1: Icebreakers — Their Historical and Technical Development.

See the full definition for icebreaker in the English Language Learners Dictionary. It had a nuclear-turbo-electric powertrain in which the nuclear reactor was used to produce steam for turbogenerators , which in turn produced electricity for propulsion motors.

Petersburg would prepare the design of the icebreaker by Some icebreakers are also used to support scientific research in the Arctic and Antarctic. Stand a Chance Against Russia's Icebreakers?