Talk:Slipstream

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Early discussion[edit]

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[edit]

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[edit]

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[edit]

"...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[edit]

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)[edit]

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