To initiate a quick stop in a helicopter, what is the recommended action?

The recommended action of afting the cyclic and simultaneously lowering the collective pitch is essential for effectively executing a quick stop in a helicopter. When the pilot moves the cyclic aft, it tilts the rotor disk backwards, helping to decrease forward momentum. Concurrently lowering the collective pitch reduces lift, which allows the helicopter to descend slightly without increasing its forward speed. This combination effectively transitions the helicopter from forward flight to a more vertical descent, bringing it to a stop in a controlled manner.

Achieving a quick stop requires precise coordination of control inputs; therefore, the simultaneous actions of adjusting the cyclic and collective are crucial. This method ensures that the helicopter doesn't continue its forward trajectory, allowing for a rapid yet stable stop.