What does SWP stand for in helicopter operations?

Settling with Power is a critical condition in helicopter operations that occurs when a helicopter descends at a rate greater than its ability to maintain positive lift while simultaneously applying power. The scenario typically arises when a helicopter is in a hovering or low-speed flight condition, especially in conditions of high density altitude or when close to the ground.

During settling with power, the helicopter's rotor system may enter an undesirable aerodynamic condition where the airflow over the blades decreases, leading to a partial loss of lift. This can create a situation where the aircraft sinks despite the application of throttle, effectively putting it in a state where it cannot maintain altitude.

Understanding settling with power is vital for pilots to avoid entering this perilous state. It emphasizes the importance of proper ascent and descent techniques, especially when maneuvering close to the ground or in confined areas. Recognizing the factors that contribute to settling with power, such as poor pilot technique, incorrect use of power management, or environmental conditions, is essential in a pilot's training and can significantly impact safety during flight operations.

The other terms listed do not relate directly to helicopter operations as commonly understood in aviation. Static Weight Pressure and Standard Wind Profile do not pertain specifically to helicopter performance issues, and Short Wave Propulsion is not a