The engine used steam generated by two horizontal fire-tube boilers at a maximum pressure of 40 psi (276 kPa; 3 kgf/cm 2). The 320-indicated-horsepower (240 kW) engine was designed to give the ship a top speed of 8 knots (15 km/h; 9.2 mph), but Monitor was 1–2 knots (1.9–3.7 km/h; 1.2–2.3 mph) slower in service.
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The engine used steam generated by two horizontal fire-tube boilers at a maximum pressure of 40 psi (276 kPa; 3 kgf/cm 2). The 320-indicated-horsepower (240 kW) engine was designed to give the ship a top speed of 8 knots (15 km/h; 9.2 mph), but Monitor was 1–2 knots (1.9–3.7 km/h; 1.2–2.3 mph) slower in service.
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