Talk:Supersonic speed

message: Come help with Wikipedia:WikiProject Fluid dynamics moink 23:14, 27 Dec 2003 (UTC)
thread_title: Untitled

message: There are many other meanings of supersonic than travel through the earths atmosphere in vehicles. Two examples off the top of my head include:
:1)the supersonic flow of plasma jet plumes suckers !!!!!!!
, which travel "supersonically" in the interstellar medium;
:2)density waves passing through stellar cores during pre-supernovae collapse, which travel faster than the speed of sound in the stellar plasma.
Should this article not include descriptions of these meanings as well?Larryisgood (talk) 15:03, 18 February 2011 (UTC)
thread_title: Other meanings of supersonic

message: *Merge - Jack (talk) 22:30, 7 August 2006 (UTC)
thread_title:  Merge from [[transonic]] 

message: *Merge - Jack (talk) 22:30, 7 August 2006 (UTC)
replies: text: Isn't hypersonic simply a subregion of the supersonic speeds? Hence the two are not completely different. --Kri (talk) 16:45, 30 March 2011 (UTC)
thread_title:  Merge from [[hypersonic]] 

message: *Supersonic - very sparse, lots of history and aerodynamics to talk about. Trevor MacInnis 17:10, 9 Jun 2005 (UTC)
replies: text:  Disagree: Each of these article (supersonic and hypersonic flows) can be expanded further. Also many effect of hypersonic flow are not applicable for supersonic flow. I am not sure of the transonic flow article, maybe that can be merged with supersonic flows, but would to know what others have to say about that. myth 22:54, 10 September 2006 (UTC)
thread_title:  From PNA/Aerospace

message: Can you still substantially feel the passage through the sound barrier in modern-day supersonic aircraft? MadMaxDog 23:38, 4 February 2007 (UTC)
replies: text: A whip crack is allegedly supersonic.  Might want to check that isn't an urban myth.  Not sure at what point rifle bullets were supersonic, certainly early guns like Civil War miniballs were subsonic. DonPMitchell (talk) 17:13, 25 June 2008 (UTC)
replies: text: I googled it, and it certainly doesn't seem to be a myth; somebody photographed a whip tip at Mach 2.- (User) WolfKeeper (Talk) 17:40, 25 June 2008 (UTC)
thread_title: Vibration

message: Would it be interesting to try to list some early achievements of supersonic speed?  September 1933, GIRD-08 ramjet achieves Mach 2.  Yuri Pobedonostsev believes that is the first supersonic flight by jet or rocket power.  March 8, 1935, Robert Goddard's A-4 rocket exceeded the speed of sound.  Is that the first supersonic rocket?  Early rockets were typically not very powerful. And of course I think we should mention that Chuck Yaeger was the first human to fly supersonic. DonPMitchell (talk) 17:11, 25 June 2008 (UTC)
thread_title:  History of Supersonic Flights 

message: i think it is very good and it helpd me loads  —Preceding unsigned comment added by 90.194.110.139 (talk) 16:55, 14 December 2008 (UTC)
replies: text: That's nice. --Kri (talk) 16:36, 30 March 2011 (UTC)
thread_title:  gfhgtj 

message: The article states that pressure has little to do with the speed of sound. If true then why does the speed change so much based on altitude? The ideal gas law is *P*ressure*V*olume=*n*umber of mols*R*(ideal gas constant =0.0802)*T*emperature 
===Picture error===
(This comment was moved from the article, and is not my comment Shandolad (talk) 12:43, 17 January 2009 (UTC)
replies: text: I removed the "Disputed" tag, since Chick Bowen adjusted the figure caption on 18 Jan 2009, and there are no objections. -- Crowsnest (talk) 03:04, 14 March 2009 (UTC)
thread_title: Pressure and Mach speed

message: (This comment was moved from the article, and is not my comment Shandolad (talk) 12:43, 17 January 2009 (UTC)
replies: text: I removed the "Disputed" tag, since Chick Bowen adjusted the figure caption on 18 Jan 2009, and there are no objections. -- Crowsnest (talk) 03:04, 14 March 2009 (UTC)
thread_title: Picture error

message: :Captain Charles E. Yeager was the first man to reach supersonic speed in controlled level flight.
The phrasing of this sentence begs the question, which the article ought to answer:  OK, so who was the first human to reach supersonic speed under any conditions?  Tempshill (talk) 05:14, 19 June 2009 (UTC)
thread_title:  Yeager 

message: needs to be removed, it was not the first production aircraft to break the sound barrier.  It is also not know or been able to prove that on May 18 1953, she break the sound barrier in level flight.  This is not fact and needs to be rewritten. Jacob805  —Preceding unsigned comment added by 80.121.86.87 (talk) 13:54, 20 November 2010 (UTC)
thread_title:  F86 Canada 

message: This is maybe not relevant to the current state of the article, although it is an interesting question that arises when looking at the images in the article. As can be seen in the images, white clouds appear around the back of the aircraft. What is happening here? The air suddenly looses its transparency, and starts to reflect the light much like a rain cloud does. But why? --Kri (talk) 16:35, 30 March 2011 (UTC)
replies: text: Because of the sharp rise in pressure upon encounter with a shockwave at Mach 1 (or supersonic speed) air (contains moisture) is condensed and thus forms what you've quite accurately classed as a cloud. Check Shock_wave & Vapour Pressure. 146.87.52.53 (talk) 01:14, 29 April 2012 (UTC)
replies: text: See Prandtl–Glauert singularity. Hcobb (talk) 01:24, 29 April 2012 (UTC)
thread_title:  Why does the air get white? 

message: And Aerodynamics merely refers back to here. 192.16.199.198 (talk) 07:44, 19 April 2011 (UTC)
thread_title:  Way too little detail on physics of supersonic flow 

message: Substituted at 07:21, 30 April 2016 (UTC)
thread_title: Assessment comment

message: In water, sound travels faster, but a pressure wave develops differently.  On Mars, it's different still. Will (Talk - contribs) 18:33, 23 December 2020 (UTC)
thread_title:  Supersonic in mediums other than air on Earth 

message: As worded, I believe the current definition of transonic promotes the idea that only part of the craft is moving at transonic speed
Flights during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds are called transonic. This occurs typically somewhere between Mach 0.8 and Mach 1.2.
In some usage, crafts wholly move at speeds in this transonic range Tesseractcubed (talk) 02:57, 18 July 2021 (UTC)
thread_title:  Transonic definition 

message: An editor has identified a potential problem with the redirect :Sonic speed and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 October 5#Sonic speed until a consensus is reached, and readers of this page are welcome to contribute to the discussion.  — Red-tailed hawk (nest) 06:10, 5 October 2022 (UTC)
thread_title:  "Sonic speed" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]]