Principles of Flight

Helicopter Stability

(Updated on 19th March 2021) Stability Stability can be simply classified as static stability or dynamic stability. Static Stability. If an object is disturbed from a given position and following this disturbance it tends to return to this position of its own accord, it is said to be statically stable. If, following the disturbance, it […]

Vortex Ring – Settling With Power

(Reviewed on 18th April 2021) What is Vortex Ring – Settling With Power? Vortex ring is commonly called settling with power in the USA. Settling with power is a better descriptive name but vortex ring is technically more correct. When the helicopter is descending into its own induced flow, there is a risk of vortex […]