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Wetter42

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- TL;DR Summary
- Forgive me for my noobishness as I'm not a physics major of any kind, but I'd love some help splashing into the world of Aerodynamics / flight mechanics to understand a bit more of how it works! Any assistance is greatly, greatly appreciated!

Hey guys! I'm looking at a few resources and I came across an interesting one on the Aviation Stack Exchange Page. Interestingly enough, another individual is working on implementing flight mechanics / aerodynamics using code and had similar questions to me, but to be honest, I'm not quite sure I understand the symbols fully; Now I've referenced resources like this to try to track down the symbols, but I've noticed that sometimes, symbols are shared / interpreted slightly differently. Not to mention the subscripts on any symbols can change the context completely. For example CL - The coefficient of lift can be changed to the max coefficient of lift by adding another (base)max to the symbol.

But I'm rambling. Anyways, here's what the symbols (kinda) look like

=========

α=arctan(w/u)

From research, I was already able to determine that that 'a' looking thingy is the angle of attack and the w is the speed along the z axis, and the u component is the speed along the x axis. This was taken from this NASA memorandum. (Top of Page 4)

========

Lz=−2π⋅α⋅q

WTH is q? I'm assuming from the context from the original source that this is Lift? But what is the context of the z component?

==================

gz=9.81⋅cos(bank)⋅cos(pitch)

What is the G component? What is subscript z? What do they represent?

=======

wz⋅=Lz+gz

Not sure what w is. Also, what does the subscript z denote here as well? Lastly, some follow up questions so I don't end up back here (and for others who want to learn, too ;D ). As you can see I was unsuccessful searching which brought me back here!

1. What's the name of the symbol for angle of attack? (Nevermind, it's "Alpha" - of course it is...)

2. I've noticed the symbols for w and u also look strange. Are those symbols as well? do they have a name?

3. What about q?

4. The base / subscript "z" - Am I using the terminology correct? I tried searching "L base z" or "L subscript z" but google knew as much as I did it seems

5. Are there any other resources (books, publications, etc) that will help me sort of understand this context in the future? The people on Avi-Stack-Exchange seemed to ask and answer the question without needing any sort of context, so I'm assuming there's at least a few resources out there that'll do the job...Thanks a million times over to anyone who spends time to help me understand. Please know that the knowledge I acquire will go to helping others understand as well! Cheers! :D

But I'm rambling. Anyways, here's what the symbols (kinda) look like

=========

α=arctan(w/u)

From research, I was already able to determine that that 'a' looking thingy is the angle of attack and the w is the speed along the z axis, and the u component is the speed along the x axis. This was taken from this NASA memorandum. (Top of Page 4)

========

Lz=−2π⋅α⋅q

WTH is q? I'm assuming from the context from the original source that this is Lift? But what is the context of the z component?

==================

gz=9.81⋅cos(bank)⋅cos(pitch)

What is the G component? What is subscript z? What do they represent?

=======

wz⋅=Lz+gz

Not sure what w is. Also, what does the subscript z denote here as well? Lastly, some follow up questions so I don't end up back here (and for others who want to learn, too ;D ). As you can see I was unsuccessful searching which brought me back here!

1. What's the name of the symbol for angle of attack? (Nevermind, it's "Alpha" - of course it is...)

2. I've noticed the symbols for w and u also look strange. Are those symbols as well? do they have a name?

3. What about q?

4. The base / subscript "z" - Am I using the terminology correct? I tried searching "L base z" or "L subscript z" but google knew as much as I did it seems

5. Are there any other resources (books, publications, etc) that will help me sort of understand this context in the future? The people on Avi-Stack-Exchange seemed to ask and answer the question without needing any sort of context, so I'm assuming there's at least a few resources out there that'll do the job...Thanks a million times over to anyone who spends time to help me understand. Please know that the knowledge I acquire will go to helping others understand as well! Cheers! :D

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