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Damping ratio is defined as __________

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in Aircraft Design by (701k points)
Damping ratio is defined as __________

(a) damping coefficient divided by critical damping coefficient

(b) lift to drag

(c) thrust to weight

(d) weight to power

The question was asked during an online exam.

My doubt stems from Dynamic Stability topic in division Stability, Control, and Handling Qualities of Aircraft Design

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The correct choice is (a) damping coefficient divided by critical damping coefficient

The explanation is: Damping ratio is defined as ratio of damping coefficient to the critical damping coefficient. Lift to drag ratio is used to provide information about aerodynamics of the aircraft. It is often termed as aerodynamic efficiency. Thrust to weight ratio is called Thrust loading.

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