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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [rik] [ In reply to ]
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rik wrote:
hambini wrote:
rik wrote:
hambini wrote:


I've never heard anyone quote axes. Axes are used for moments, typically Cm.

I think, although not certain you are referring to planes.


hmmmmm: https://www.google.com/...nd+axis+aerodynamics


And that is correct, the first picture shows the moments.

When summing the pressures to give you the net force, nobody knows where you are going to make the cut so we talk planes.


Let me get this straight: you make the statement that nobody uses the term “axes,” and then confronted with evidence from a cursory Google search that the term is widely used, you double down?

Not sure what you mean. When I clicked the link. the first picture that came up was this one

https://upload.wikimedia.org/...is_Corrected.svg.png

Which is exactly as I said. The moments are around the axes (Pitch, Yaw, Roll) albeit we use a different lettering system.

HELLO HAMBINI FANS!!!
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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [hambini] [ In reply to ]
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hambini wrote:
rik wrote:
hambini wrote:
rik wrote:
hambini wrote:


I've never heard anyone quote axes. Axes are used for moments, typically Cm.

I think, although not certain you are referring to planes.


hmmmmm: https://www.google.com/...nd+axis+aerodynamics


And that is correct, the first picture shows the moments.

When summing the pressures to give you the net force, nobody knows where you are going to make the cut so we talk planes.


Let me get this straight: you make the statement that nobody uses the term “axes,” and then confronted with evidence from a cursory Google search that the term is widely used, you double down?

Not sure what you mean. When I clicked the link. the first picture that came up was this one

https://upload.wikimedia.org/...is_Corrected.svg.png

Which is exactly as I said. The moments are around the axes (Pitch, Yaw, Roll) albeit we use a different lettering system.

There is link after link after link,all using the terminology “axis,” and yet you say that word is not used.
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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [rik] [ In reply to ]
Quote | Reply
rik wrote:
hambini wrote:
rik wrote:
hambini wrote:
rik wrote:
hambini wrote:


I've never heard anyone quote axes. Axes are used for moments, typically Cm.

I think, although not certain you are referring to planes.


hmmmmm: https://www.google.com/...nd+axis+aerodynamics


And that is correct, the first picture shows the moments.

When summing the pressures to give you the net force, nobody knows where you are going to make the cut so we talk planes.


Let me get this straight: you make the statement that nobody uses the term “axes,” and then confronted with evidence from a cursory Google search that the term is widely used, you double down?


Not sure what you mean. When I clicked the link. the first picture that came up was this one

https://upload.wikimedia.org/...is_Corrected.svg.png

Which is exactly as I said. The moments are around the axes (Pitch, Yaw, Roll) albeit we use a different lettering system.


There is link after link after link,all using the terminology “axis,” and yet you say that word is not used.

Okay, you are right and I'm wrong. Hope it has made your day.

HELLO HAMBINI FANS!!!
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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [Rocket_racing] [ In reply to ]
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Probably the best post in the entire thread

Matt
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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [hambini] [ In reply to ]
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hambini wrote:
rik wrote:
hambini wrote:
rik wrote:
hambini wrote:
rik wrote:
hambini wrote:


I've never heard anyone quote axes. Axes are used for moments, typically Cm.

I think, although not certain you are referring to planes.


hmmmmm: https://www.google.com/...nd+axis+aerodynamics


And that is correct, the first picture shows the moments.

When summing the pressures to give you the net force, nobody knows where you are going to make the cut so we talk planes.


Let me get this straight: you make the statement that nobody uses the term “axes,” and then confronted with evidence from a cursory Google search that the term is widely used, you double down?


Not sure what you mean. When I clicked the link. the first picture that came up was this one

https://upload.wikimedia.org/...is_Corrected.svg.png

Which is exactly as I said. The moments are around the axes (Pitch, Yaw, Roll) albeit we use a different lettering system.


There is link after link after link,all using the terminology “axis,” and yet you say that word is not used.

Okay, you are right and I'm wrong. Hope it has made your day.

Let’s not forget that you tried to state that “axes” are not a term that was used in aerodynamics when you were questioned about your methodology/understanding of body axis vs wind axis drag components. You went off on that tangent and never addressed that. What would make my day is if you actually addressed the issues.
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Re: Updated: A Comprehensive (But Controversial) Wind Tunnel Wheel Shootout [hambini] [ In reply to ]
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hambini wrote:
me individuals requested a "yaw vs drag" graph or a "yaw against time graph". I tried to produce them and was criticized because the values did not add to 100% in the second case. And if you watch the video, you will understand the two measures are not one and the same, hence it does not add to 100.

But parking that to one side, I would say it's 65-70% yes.


Looks more hobbyist to me. And that's not a pejorative. We've had plenty of hobbyists make valuable contributions to this forum. But official work products from practicing professional engineers would be documented with far more detail. Also professional engineers are generally quite comfortable with rigorous critical peer review, even for questions they may feel is "beneath" them. What's missing is detail cataloging of instruments, methods, and raw data. You kind of want it both ways. You want to be granted the status of "practicing aerospace engineer" without any of the accountability that a professional engineer would be held to.
Last edited by: trail: Aug 23, 19 16:53
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