Talk:Bird strike

message: Is the cost $400M to the US per annum, or 6? There are two figures on the page that contradict the other.
----  —Preceding unsigned comment added by Effsee (talk • contribs) 00:10, 10 February 2009 (UTC)
replies: text: I think you're right, this was probably my mistake when I expanded the article. I have changed the text from cube to square. Thanks for the info -- Chris 73 | Talk 12:29, 7 December 2005 (UTC)
thread_title: Untitled

message: I have removed an image (there are alot animal impact image in the article) and inserted an image of an engine damage after a bird strike evenet.--195.128.38.35 14:04, 11 July 2007 (UTC)
thread_title:  image replacement 

message: Ugh. I knew that this would happen. In the text as it existed, there was a lot of loose text and redundant information. I chopped it. It got reverted. Here we go.
:Most bird strikes happen close to the ground, where the majority of birds are found (in bird airspace). Hence bird strikes happen most often during take off or landing, or during low altitude flight.
::Seems to be totally obvious and pointless to specifically mention. Gee whiz, there are more birds at 30ft than at 3000ft?
:The point of impact is usually any forward-facing edge of the vehicle, although with jet engine aircraft the animal is frequently sucked into the [or an] engine, causing damage to the fans or the housing, or airflow ducts.
::Very wordy "of the vehicle" is obviously redundant. Find a shorter way of mentioning jet engines.
:The weight of the vehicle can usually be ignored since it is usually much larger than the weight of the animal. 
::Um, yes. And? This isn't an article about kinematics. This sentence seems really out of place.
:although it will result in major injuries or death to the bird.
::O RLY?? Be serious. Why should this be in the article?
:High speeds, however, as for example with modern jet engine aircraft will produce considerable energy and may
::How is this better than "High speed impacts, however, as with jet aircraft, can cause considerable damage"? High speeds produce "considerable energy"? What does that even mean? Considerable kinetic energy? Are you trying to say that going faster causes greater damage? Come on, that's just obvious. We're trying to inform, not define at some minute level.
Is this reversion really justified? How so? Stevage 04:01, 7 September 2007 (UTC)
thread_title:  Partial revert 

message: The doesn't feature any information about birds getting struck by wind turbines, also referred to as bird strike. This issue has been used in some cases by governments as a reason to oppose wind farms, a hot issue where I'm from. PeterPartyOn 04:38, 12 October 2007 (UTC)
thread_title:  Windfarms 

message: 1 link removed - Amatuear footage - Watermark in footage does not correlate with clip information or uploader profile, no clear indication uploader has right to the footage concerned or is linked to the production entity responsible. Sfan00 IMG (talk) 18:01, 20 November 2007 (UTC)
thread_title:  You tube link removal. 

message: The physical units used in this article in the following sentence make very little sense:
"The force imparted onto the aircraft at collision is defined by the equation F = (1/2)mass X velocity squared, where F equals kinetic energy in foot pounds per square inch."
# You can't "impart" force onto an aircraft, you can apply it for a specific time which is really imparting an impulse.
# The equation F=(1/2)mv2 is for kinetic energy not force (see Kinetic energy). So F should be E or Ek.
# The "in foot pounds per square inch" is:
## Irrelevent in this context, no other units are mentioned.
## Not related to kinetic energy, or even force. Energy is mass x length2 x time-2. Force is mass x length x time-2. "foot pounds per square inch" is length-1 x mass (if pounds is taken as mass) or length-1 x mass x length x time-2 = mass x time-2 (if pounds is taken as weight/force).
I'm going to change this sentence to the following:
"The energy that must be dissipated in the collision is approximately the relative kinetic energy (Ek) of the bird, defined by the equation Ek = (1/2)mass X velocity2"
--James Hogan 00:14, 9 March 2008 (UTC)
thread_title:  Physical units seriously messed up 

message: It seems like it would be easy enough to make an aerodynamic cone shaped bird deflector grate (cow catcher) that fits on the front of the engine.   A sufficiently acute cone would deflect most of the force, as well as the carcass, sideways.   Aerodynamic shaped slats would have minimal impact on airflow.
Whitis (talk) 05:20, 16 January 2009 (UTC)
replies: text: Then you'd be starving the engine of air that the compressor needs, I assume.  Tempshill (talk) 18:43, 16 January 2009 (UTC)

text: It's still be useful in this article to address why jet engines do not have grates or "cow catchers" - if anyone can find a good authority to cite, then this discussion would improve this article quite  a bit.  Tempshill (talk) 18:44, 16 January 2009 (UTC)
thread_title:  Bird Deflectors 

message: :The Smithsonian Institution's Feather Identification Laboratory has identified turkey vultures as the most damaging birds, followed by Canada geese and white pelicans, all very large birds. 
I fact-tagged the word "damaging" just now because I think this means that "Turkey vultures cause the most bird strikes".  The way it's currently phrased, I'm reading it as "A turkey vulture will cause the most damage to a plane that it happens to strike."  Tempshill (talk) 18:43, 16 January 2009 (UTC)
replies: text: I have removed the reference needed and referenced the sentence. The reference says almost exactly what the wiki article says (Wiki: "... has identified turkey vultures as the most damaging birds". Reference: "...the most damaging birds are turkey vultures"). If you are unsure what that means, you might consider the  tag, but a reference needed doesn't fit here. 212.10.88.122 (talk) 10:42, 17 January 2009 (UTC)
thread_title: "Most damaging" birds

message: In the introductory paragraph of the article, the word 'accidents', links to a page that talks about what an accident is in general.  Do we really need that link?  I think the link is irrelevant, and most people know what an 'accident' is without having to check the link out.  I think the link should be removed. 208.120.218.206 (talk) 23:37, 16 January 2009 (UTC)
replies: text: No, we don't and I have removed it following WP:OVERLINK. 212.10.88.122 (talk) 10:49, 17 January 2009 (UTC)
thread_title: Link to "Accident" needed?

message: Add the section to the talk page since it has been removed from the main article. This way it does not get lost.-- Chris 73 | Talk 12:23, 17 January 2009 (UTC)
replies: text: Agree that this section qualifies for removal from the article as it has contains only trivia. (Wikipedia:Trivia sections) Shyamal (talk) 13:36, 17 January 2009 (UTC)
thread_title:  In popular culture 

message: Any idea on how to incorporate content from the following link into this page?
http://cityroom.blogs.nytimes.com/2009/01/21/the-first-bird-strike-captured-on-film
The image is from 1916, and is almost certainly in the public domain. The linked page above speculates that it may be the first photographed bird strike.  —Preceding unsigned comment added by 216.237.75.235 (talk) 01:53, 22 January 2009 (UTC)
thread_title:  First bird strike recorded on film? 

message: In The United States, the main entity that is tasked with Bird Strike Hazard programs at major airports is the USDA Wildlife Services. There does not seem to be any mention of them in the article. I think it would be a proper addition, but would defer to discussing it here before making any changes to the article. Also, are there any counterparts to this US agency in other countries?  Bugguyak (talk) 19:07, 28 June 2009 (UTC)
replies: text: An interesting new resource is http://www.skybrary.aero/landingpage/ (or http://82.94.179.196/landingpage/ if the name fails to resolve) and they have a list at http://www.skybrary.aero/landingpage/ Shyamal (talk) 14:54, 22 August 2010 (UTC)
thread_title:  US Bird Strike Management Agency 

message: Sorry, but why don't they just put grill meshes on the front of the turbines? 80.47.45.116 (talk) 09:47, 5 February 2010 (UTC)
thread_title: Prevention

message: would this be ok? to modify the heading and add bugstrike as bugs striking pilots and aircraft is just as much a hazard.Koplimek (talk) 20:52, 5 August 2010 (UTC)
replies: text: I have moved back the article, titles do not usually have to have every bit covered and "/" is generally avoided. The new section needs citations. The article already covers bat strikes without any change of title. Shyamal (talk) 05:34, 6 August 2010 (UTC)
thread_title: Add 'Bugstrike' to heading

message: I think Flight 263H has achieved enough recognition to have it's own article. 90.209.11.24 (talk) 07:47, 3 February 2012 (UTC)
replies: text: Has it had any recognition in WP:RSs ? DexDor (talk) 19:05, 3 February 2012 (UTC)
thread_title:  Thomson 263H 

message: Why doesn't the article tell anything about this? These too are bird strikes! Just had this incident TODAY. There was a frighteningly loud "WHOOMP!" and a bird had mistaken my living room window glass for open air. Gladly it was able to get away and I didn't have to take it to the vet, but it could have been worse. Anyways, the article is very "aircraft-fixated" and should get its scope widened. -andy 217.50.48.169 (talk) 17:19, 26 July 2012 (UTC)
thread_title:  Collision with man-made objects other than aircrafts! 

message: The part of the article about 'forensic' techniques regarding remains sounds odd. Would it not read more appropriately if the term was changed to laboratory? The related link would still be suitable, but the term forensic would be spared. It's being increasingly used in situations describing generic laboratory operations which aren't always of a forensic nature. Mongoosander (talk) 01:17, 20 May 2013 (UTC)
thread_title:  Use of "forensic" term 

message: Mjlynch58 (talk) 21:42, 5 September 2014 (UTC)
thread_title:  re: entry, bird strikes 

message: Update article to include documented cases of unmanned aerial vehicles striking aircraft?  — Preceding unsigned comment added by 72.221.88.92 (talk) 23:51, 18 July 2015 (UTC)
thread_title: "Drone" Strikes

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message: Article says
:Many jet engine manufacturers include white spirals in the center of their engines. ... in the air it appears as a white circle which discourages birds from flying into the engine.
This seems dubious.
1) Is there any particular reason to think that a "white circle" might discourage birds from flying into the engine?
2) At typical collision speeds, it seems like birds probably wouldn't be aware of possible danger until it was too late to avoid it.
Do we have any good cites that clarify this issue?
Thanks - 2804:14D:5C59:8300:0:0:0:1000 (talk) 00:06, 20 August 2019 (UTC)
replies: text: Can't say I have any citations on the issue, but my understanding was that it was for humans, not birds. Having a spiral on the turbine center shaft cover allows maintenance techs and pilots to see if the prop/blades are turning. I find it dubious that birds would recognize that, let alone fear a white circle. Captain Eek Edits Ho Cap'n!⚓ 00:25, 20 August 2019 (UTC)

text: Certainly dubious. No warning would work for birds at the speeds at which ingestion happens. Shyamal (talk) 00:37, 20 August 2019 (UTC)
replies: text: Removed because a source for this seems unlikely to exist; and honestly between the WP:OR of "it appears as a white circle which discourages birds from flying into the engine" and "No warning would work for birds at the speeds at which ingestion happens", the second seems far more plausible. 107.190.33.254 (talk) 13:11, 20 August 2019 (UTC)
replies: text: It is listed as a common misconception in this brochure from Boeing - https://aerosavvy.com/wp-content/uploads/2015/02/AERO_2011_Q3_article4.pdf Shyamal (talk) 09:26, 25 August 2019 (UTC)
thread_title:  "a white circle which discourages birds from flying into the engine" 

message: : In addition to property damage, collisions between man-made structures and conveyances and birds is a contributing factor, among many others, to the worldwide decline of many avian species.[citation needed]
I'll look into finding a citation for this. Pmaxhogan (talk) 21:20, 22 August 2019 (UTC)
thread_title:  Citation Needed for decline of avian life