Which corrective action should be taken if a helicopter is experiencing excessive nose-low attitude?

When a helicopter is experiencing an excessive nose-low attitude, the primary corrective action to regain control involves managing the rotor system's pitch, specifically by lowering the collective pitch. This action decreases the lift produced by the rotor blades, reducing the tendency of the helicopter to enter a nose-low attitude. By lowering the collective pitch, the pilot allows the aircraft to descend, which can help in stabilizing the attitude and prevent a potential descent into a dangerous situation like a steep dive.

Managing collective pitch is crucial because it directly influences the angle of attack of the rotor blades, which in turn affects the lift and the overall stability of the helicopter. Adjusting the cyclic input would also play a role in controlling the aircraft, but the most immediate and effective way to address a significant nose-low attitude is to lower the collective pitch first, ensuring that the helicopter regains stability.

In this context, while adjusting throttle output might influence the helicopter's performance, it is not the most direct or effective method to correct a nose-low attitude. Starving the engines of fuel is not a viable option, as it could lead to a power loss and exacerbate the situation. Increasing forward cyclic input might not effectively resolve the nose-low condition and could instead lead to a complicated flight response