Question

Longitudinal dynamic modes

Answer 1

Answer:

Oscillating motions can be described by two parameters, the period of time required for one complete oscillation, and the time required to damp to half-amplitude, or the time to double the amplitude for a dynamically unstable motion.

Answer 2

$\huge \color{red} \underline \color{green} \underline \color{skyblue} \underline \color{pink} \underline \color{magenta} \underline \color{orange} \underline \color{royalblue} \underline \color{maroon} \underline \color{seagreen} \: \tt \star \: ANSWER \: \star \:$

The dynamic stability of an aircraft refers to how the aircraft behaves after it has been disturbed following steady non-oscillating flight.

Oscillating motions can be described by two parameters, the period of time required for one complete oscillation, and the time required to damp to half-amplitude, or the time to double the amplitude for a dynamically unstable motion. The longitudinal motion consists of two distinct oscillations, a long-period oscillation called a phugoid mode and a short-period oscillation referred to as the short-period mode.