Talk:Slipstream

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by Fluid Dynamics Taskforce.

Early discussion

I have a discussion I would like to post here, but there is an overbearing editor who insists on deleting it, so I'll have to move on to some more engaging venue. Peace.

Please see your user talk page at User talk:Jazz4kurt for a response. --Romanski 13:02, 26 October 2006 (UTC)[reply]

I'm pretty sure i remember my aerospace engineering prof telling us that the v pattern geese fly in provides little to no drafting effect. in any case, the page cites no sources, so i'll tag it as such. also, having read the previous user's talk page, i agree that this IS the place to discuss a question regarding slipstreams. if the wiki page does not answer such questions, it needs to be addressed, and HERE. this would highlight any missing information in the page. Archtemplar 07:47, 29 May 2007 (UTC)[reply]

I can confirm that the effect of geese flying in V formation is not a slipstream effect but instead a vortex shedding effect, and the front goose does not have to work the hardest, the outside geese do. 14:08, 21 August 2008 (CDT) —Preceding unsigned comment added by 65.167.146.130 (talk)

Same, I've also read that V formation is for vortex shedding and the two last fliers actually do most of the work. Agent L (talk) 14:28, 21 March 2010 (UTC)[reply]

Spiral slipstream

I assume this is a technical term used 'across the pond' as being UK-based I have never heard the term used here.

AFAIK, the UK term for the airflow produced by a rotating propeller is (or was) just 'Slipstream', the term originally referring to the airflow produced by the rotating propeller when the aircraft is stationary on the ground and the airscrew 'slips' rather than pulling the aircraft through the air. It's more often heard (possibly technically incorrectly) referring to the 'wind' that one feels when in flight when poking your head out of an opened cockpit.

A quick check of A. C. Kermode's The Mechanics of Flight:

The Slipstream

The propeller produces thrust by forcing air backwards, and the resultant stream of air which flows over the fuselage, tail units, and other parts of the aeroplane is called the slipstream.

I'll add in the opening line that in the UK the term is just 'slipstream'. Ian Dunster 16:46, 27 March 2007 (UTC)[reply]

Breaking / Braking

The original text "breaking to overtake" refers to breaking from the use of another's slipstream, not braking as in deceleration, which is unlikely to succeed as an overtaking technique, especially when also leaving a slipstream.

Possibly better to reword to avoid confusion. The term "pulling out" is used later.

Lee.Kowalkowski (talk) 08:20, 27 June 2008 (UTC)[reply]

Spiral Slipstream

"...formation of a spiral slipstream is the tendency to yaw nose-left at low speed and full throttle."

Nose left would be for clockwise rotating (top turns to Starboard) props only, surely?

I'm pretty sure there are counterclockwise props about (critical engines spring to mind), which would give you nose right, unless I'm missing something?

Thanks,

121.127.205.123 (talk) 05:56, 28 September 2008 (UTC)[reply]

Meaning of Slipstream vs. Wake

This article defines slipstream primarily as the wake and secondary as the (air)flow alongside an object. In my experience the term is used the other way around, primarily meaning the flow alongside. This is also consistent with the source mentioned in the article (Recent studies of Train Slipstreams by Johnson, Dalley, and Temple). This source basically defines slipstream as the (air)flow moving at speeds close to that of the moving object. Since this definition can to some extent apply to the entire bubble, slipstream may include the wake.

I suggest to adjust the definition of slipstream to flow moving at speeds close to that of the moving object, making the longitudinal flow the primary meaning of slipstream.

80.60.189.221 (talk) 18:39, 27 October 2009 (UTC)[reply]

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified 4 external links on Slipstream. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 10:44, 22 January 2018 (UTC)[reply]