$$Thrust = \dot{m} v_{ex}$$
where $\dot{m}$ is the rate of fuel consumption and $v_{ex}$ is the exhaust velocity.
Given $\dot{m} = 470 \, kg/s$ and $v_{ex} = 2.97 \, km/s = 2970 \, m/s$.
$$Thrust = 470 \, kg/s \times 2970 \, m/s = 1395900 \, N$$
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