Question on longitudinal static stability of an aircraft

AI Thread Summary
Longitudinal static stability in aircraft is influenced by wing size, with larger wings providing greater lift at a given velocity. This increased lift can affect the aircraft's response to perturbations in fluid properties. Additionally, a larger wing increases the moment of inertia, impacting pitch stability and potentially yaw stability. The discussion emphasizes the need for qualitative and quantitative analysis when comparing wing sizes. Understanding these dynamics is crucial for assessing aircraft stability and control.
bourne
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wat will be the longitudinal static stability of an aircraft with a larger wing to a smaller wing?
 
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Thread moved to Homework Help. Please take care to post homework/coursework questions in the Homework Help forums, and not in the general technical forums.

And you must show some of your work in order for us to provide tutorial help. What can you tell us about longitudinal stability? What effects would different shape and size wings have?
 
bourne said:
wat will be the longitudinal static stability of an aircraft with a larger wing to a smaller wing?
Is one expecting a qualitative or quantitative answer.

The larger wing has greater lift for given forward velocity. Then think about the response to perturbations in fluid properties.

Also, the moment of inertia increases with size. What effect does this have on pitch (longitudinal stability) or yaw (directional stability)?

FYI - http://dscb.larc.nasa.gov/Introduction/Controls/index.htm

http://adamone.rchomepage.com/index5.htm
http://adamone.rchomepage.com/index3.htm

http://adg.stanford.edu/aa241/stability/staticstability.html

See also - MIT, Aeronautics and Astronautics, 16.333 Aircraft Stability and Control, Fall 2004 -
http://ocw.mit.edu/OcwWeb/Aeronautics-and-Astronautics/16-333Fall-2004/CourseHome/index.htm

Moment of inertia calculations:
http://blue.utb.edu/tjayp/Courses/PHYS2425F2000/Moment.html
https://www.physicsforums.com/archive/index.php/t-57119.html
http://hypertextbook.com/physics/mechanics/rotational-inertia/
http://em-ntserver.unl.edu/negahban/em223/note19/ex2/ex2.htm
 
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berkeman said:
Thread moved to Homework Help. Please take care to post homework/coursework questions in the Homework Help forums, and not in the general technical forums.

And you must show some of your work in order for us to provide tutorial help. What can you tell us about longitudinal stability? What effects would different shape and size wings have?

yup. m sorry. i'll surely do tat next time onwards.
 

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