In the event of an engine failure at 125 knots, which airspeed will the pitch bar command based on the conditions given?

When experiencing an engine failure at a speed of 125 knots, the pitch bar will command an appropriate airspeed that allows the aircraft to maintain controlled flight and optimize performance under reduced power conditions. In this scenario, the correct answer of 145 knots (VMCO) represents the minimum control speed for takeoff with one engine inoperative.

VMCO is crucial for ensuring that the aircraft can be safely controlled during a critical phase of flight where one engine is not providing thrust. This airspeed is higher than the VROT (rotation speed), which is primarily focused on the requirements for a successful takeoff but does not account for the performance implications of operating with one engine failed.

The other options represent different airspeeds that are not as suitable under these specific conditions. VMSR (185 knots) refers to the minimum speed for clean configuration, which is not relevant in the case of an engine failure during takeoff. VMFR (152 knots) is typically associated with safe speeds in other scenarios but does not relate to the immediate need for controlling flight after an engine failure.

Therefore, 145 knots (VMCO) stands out as the correct response since it aligns directly with maintaining aircraft control under the specified conditions.