After a disturbance in pitch, an aircraft continues to oscillate at constant amplitude. It is
- longitudinally statically unstable.
- longitudinally neutrally stable.
- laterally dynamically unstable.
Explanation from PART66Online
An oscillation that continues at constant amplitude, neither damping out nor diverging, is the definition of neutral dynamic stability. As the disturbance was in pitch, the aircraft is longitudinally neutrally (dynamically) stable. A damped oscillation would indicate dynamic stability and a growing one dynamic instability.
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onu93 asked · 25 Feb 2014
Why?
Community Comments (2)
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PART66Online
25 Feb 2014
Why not? :) What exactly you don't understand? You have to read about aircraft stability, it is very simple topic. Check any PART66 Mod.8 book.
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onu93
25 Feb 2014
Ok now i have understand tnx
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