Talk:Vapor cone

"as air pressure decreases suddenly across shock waves"

this is ... shocking! (unsigned IP comment)

This error dates back to August 2014. Fixed it. Thanks. Ariadacapo (talk) 13:50, 24 June 2015 (UTC)[reply]

"Essentially, the tail of the aircraft is in supersonic flight while the bow is still flying subsonically, and is said to be in transonic flight." This is plain wrong: the plane being a solid object, all of its parts fly at exactly the same velocity relative to the ground. Isn't the airflow supersonic around the front part of the plane and subsonic around the tail? Definitely needs to be amended accordingly. (unsigned comment by 82.58.163.165)

The speed relative to the ground is the same everywhere. But the speed of the air relative to the aircraft is higher in some areas. Also, temperature changes cause the local speed of sound to change. The ratio of these two speeds (called the Mach number), and not the speed relative to the ground, determines whether flow is (locally) subsonic or supersonic. So the statement is true, if slightly confusing. I tried to amend it to clarify. Ariadacapo (talk) 17:15, 4 February 2016 (UTC)[reply]

September 2021

All motion is relative, when we talk about supersonic flow around an aircraft it is relative to the aircraft, not the ground

Airflow is Supersonic with respect to the Aircraft, not the ground. Relative to the Ground all airflow around a Supersonic Aircraft is Subsonic. All motion is relative. When we talk about Supersonic flow, it is relative to the Object not some other Inertial Frame of Reference.

With respect to the aircraft this statement is correct: "Essentially, the tail of the aircraft is in supersonic flight while the bow is still flying subsonically, and is said to be in transonic flight." Whoever removed this statement should put it back.

So, Ariadocapo, i see you editing my statement on this page, you find it confusing? There is not much confusion, it's really simple, the tail of the aircraft obtains supersonic flight before the nose. Actually, the last bit of the aircraft to fly in supersonic flow is the very tip of the nose, which occurs at mach 1. Did you amend this statement? I cannot find my original statement or your amendments to it?

I cannot find my statements, or the changes you have made to clarify it.

(unsigned comments by Webegood)

@Webegood: I do not know which edit(s) specifically you are referring to. Please link to them, so we can discuss the article content. Thank you. Ariadacapo (talk) 14:41, 20 September 2021 (UTC)[reply]

This one, "Essentially, the tail of the aircraft is in supersonic flight while the bow is still flying subsonically, and is said to be in transonic flight."

Ariadocapo, you can either put it back in and fix what you think is wrong, on not. Or, you can either fix other glaring problems with this page or not. This wikipedia page is still a mess and I find it impossible to fix it right now, maybe in a few years. Not sure it was you but someone keep reverting every little change I make to make this a better page, I can wait a few more years before I try to make this a better page. Have a nice day.

— Preceding unsigned comment added by Webegood (talk • contribs) 15:08, 7 October 2021 (UTC)[reply]