Quoting Fly707 (Thread starter): -What would happen to an engine if it suffered a bird strike while on T.O ?
Maybe nothing, maybe a catstrophic (sp?, grrr, spell check not working) failure of the engine. Depends on the size of bird, number of birds, point of impact on the fan, age of engine, etc.
Quoting Fly707 (Thread starter): -Does any one know accidents or incidents due to bird strike ?
We deal with bird strikes all the time. One I recall vividly was a PanAM B747 departing out of JFK that flew into a flock of gulls. The aircraft returned. The #1 engine was trashed. There was not one intact fan blade and the tail cone had seperated from the engine. After engine removal, there was extensive rework to the pylon to repair the damage from the sudden stoppage. I'm still surprised the fuse bolts didn't fail.
SlamClick From United States, joined Nov 2003, 9996 posts, RR: 79 Reply 2, posted (2 years 10 months 1 week 1 day 1 hour ago) and read 1626 times:
Flocks of starlings have brought down a Lear and, I believe, an L-188. Don't have dates or other particulars on either.
I've had several but been pretty lucky every time. Only damage I've ever suffered was from a bird strike descending into Missoula Montana at night and caught some kind of duck squarely on the taxi light. The light shattered, of course, and the duck's body remained inside the shell.
I have taken them on the windshield twice, once at 80 knots on takeoff roll and once at 300 knots indicated on climb. Both of those ruined the bird but did not damage the airplane.
Sounded like a cannon though!
Happiness is not seeing another trite Ste. Maarten photo all week long.
MarkC From United States, joined Apr 2006, 201 posts, RR: 11 Reply 3, posted (2 years 10 months 1 week 1 day 1 hour ago) and read 1622 times:
Birdstrikes are relatively common. Small birds present very little trouble. However, multiple birds or a very large single bird can really be a problem.
I find it interesting that the engine manufacturers ask for recovered feathers, which are then given to a lab for analysis to determine the species and size of the bird.
About a year ago, I saw an engine that was hit by a duck just after takeoff. Lots of internal damage. It was about a $3 million duck.
Airfoilsguy From , joined Dec 1969, posts, RR: Reply 4, posted (2 years 10 months 1 week 1 day 1 hour ago) and read 1621 times:
Bird strikes range from a minor annoyance (having to clean off the plane) to catastrophe (bringing down the plane). I remember reading about an AWACS that was brought down after losing several engines due to mutable bird strikes.
5 minutes later....
I Found it
Boeing E-3B Sentry 77-0354 was military Boeing 707-derivative, a.o. equipped and AWACS system. The aircraft, operated by the US Air Force 962nd Airborne Air Control Sqn, 3rd Wing, was assigned call-sign Yukla 27 for a 6.2 hr training mission. At 07:43 Yukla 27 was holding short of runway 5, waiting for takeoff, when a Lockheed Hercules departed. This aircraft disturbed a flock of Canada geese. The Yukla 27 crew were not warned about this by the tower controller. At 07:45 they were cleared for takeoff and the throttles were advanced. As the plane rotated for lift-off numerous geese were ingested in the no. 1 and 2 engines resulting in a catastrophic no. 2 engine failure and a stalling no. 1 engine. The crew initiated a slow climbing turn to the left and began to dump fuel. The aircraft attained a maximum altitude of 250 feet before it started to descend. The plane impacted a hilly, wooded area less than a mile from the runway, broke up, exploded and burned.
PROBABLE CAUSE: Ingestion of Canada geese into the no. 1 and 2 engines. Two contributing factors were the fact that the 3rd Wing lacked an aggressive program to detect and deter geese; the preparations for the migration season of the bird hazard reduction working group (BHRWG) were insufficient. An earlier safety agency staff assistance visit (SAV) had misled the 3rd Wing to believe that they were prepared. The second contributing factor was the tower controllers failure to notify Yukla 27 or airfield management that geese were present on the infield.
Starglider From Netherlands, joined Sep 2006, 601 posts, RR: 33 Reply 5, posted (2 years 10 months 1 week 1 day 1 hour ago) and read 1618 times:
Earlier this week a Fokker 100 in France ingested multiple birds in one of its engines during takeoff, at least, that is what's claimed to be the cause according to early reports. The plane veered off the runway, went through a fence and struck a truck when it crossed a perpendicular road, killing the driver. Pax and crew were safe. This must have occurred before V1 or otherwise the plane should have made it safely into the air on one engine. There were snowy conditions at the time, perhaps resulting in a slippery runway. Without the facts, its too early to tell what the exact cause was as to why the plane veered off the runway.
Quoting MarkC (Reply 3): I find it interesting that the engine manufacturers ask for recovered feathers, which are then given to a lab for analysis to determine the species and size of the bird.
Ok but what about if there was no feathers inside the engine & the feathers were only on the runway ?
Corey07850 From United States, joined Feb 2004, 2374 posts, RR: 6 Reply 10, posted (2 years 10 months 1 week 22 hours ago) and read 1547 times:
Quoting Fly707 (Reply 6): Well is there more pictures for bird strike ?
Here's some I took from the other day... 2 Geese right after take off, one in the engine, and one bounced right off the inlet down the side of the plane...
Sprout5199 From United States, joined Feb 2005, 1428 posts, RR: 1 Reply 12, posted (2 years 10 months 1 week 18 hours ago) and read 1487 times:
Quoting N231YE (Reply 9): Here is a video of interest I uploaded a few months ago:
The last part of that is here in Jupiter(well about 15 miles west). I grew up about 7 miles from the test area. We could hear(and feel) the engines run all night. Every once in a while you would hear one let go. A big bang, and then quiet. And they also tested the Lox pumps for the Space Shuttle out there(My Ex-father in law worked on them). Is a HUGE area.
"Bird and other wildlife strikes to aircraft annually cause over $600 million in damage to U.S. civil and military aviation. Furthermore, these strikes put the lives of aircraft crew members and their passengers at risk: over 195 people have been killed worldwide as a result of wildlife strikes since 1988."
A total of 64,734 bird strikes reported in the USA in that period. Resulting in at least 6380 aircraft with minor or substantial damage, and 16 aircraft destroyed. The report also discusses 1429 incidents involving "terrestrial mammals" and another 79 involving reptiles. One wonders how many of the reptile incidents involved a single flight with Samuel L. Jackson on board?
It's a problem for everybody:
A vulture (3-5lbs) impacted Discovery's external tank on STS-114 (July 2005), mind you that this was just after launch, so the speeds were low, but for comparison, the chunk of foam that did in Columbia was only 1.7lbs (it was moving much faster, and hit something rather more fragile than the ET, but still...).
NoUFO From Germany, joined Apr 2001, 6433 posts, RR: 21 Reply 16, posted (2 years 10 months 3 days 12 hours ago) and read 1130 times:
Last Oktober the A320 (or A321) I was on collided with a couple of seagulls. Apart from the fact that the pilots drastically reduced speed, I did not notice anything. We returned to HAM, and it still felt like flying on a perfectly safe plane, hence I wasn't nervous, not to the slightest.
However, we needed to re-book, as did the passengers of at least another flight. Five - and later nine - LH employees shouldered the herculean task to re-book some 250 passengers on a Saturday and the first day of the fall holidays.
And HAM is only a mid-size airport.
We arrived in Rome with a 6-hour delay, but who gives.
Speedracer1407 From United States, joined Dec 2004, 326 posts, RR: 0 Reply 17, posted (2 years 10 months 3 days 12 hours ago) and read 1125 times:
I wish I could find the pictures, but I know they've been posted around here before. A 767 was struck by a few birds (at least, I think it was more than one), and one of them penetrated the fuselage right under the captain's windsheild, busting up his side of the instrument panel. there are some great pics of it around here, I just can't find them at the moment.
Found some pics with a quick google search--I thought they were on A.net, but I guess not.
FBU 4EVER! From Norway, joined Jan 2001, 991 posts, RR: 8 Reply 18, posted (2 years 10 months 3 days 10 hours ago) and read 1104 times:
I saw a Piper Aztec at FLL once.It had been struck by a pelican.The bird hit the wing leading edge head-on and penetrated the wingspar.The beak had to be pulled out using pliers.I was duly impressed.
I read once about an Air India B707 hitting a flock of geese at FL280.In clouds.The birds had been forced up by winds on the southern slopes of the Himalayas.
Vzlet From United States, joined Mar 2004, 776 posts, RR: 0 Reply 19, posted (2 years 10 months 3 days 8 hours ago) and read 1073 times:
The USAF Flying Safety magazine devotes an issue a year to BASH (Bird/Animal Strike Hazard), October 2006 being the most recent.
An excerpt from the editor's page:
"Strike risk decreases as altitude increases, with two notable exceptions. One spike occurs between 500 and 700 feet—range and low-level operational altitudes. The other spike occurs between 1,000 and 3,000 feet—pattern altitudes for most bases. Mission and training requirements direct us to fly at these altitudes for prolonged periods.
Hitting birds of any size, while traveling low and fast, can cause extensive damage. Hitting birds while flying slowly around the flagpole usually doesn’t cause as much damage. Did you know that 49 percent of our bird strikes occur on or around airfields, accounting for 33 percent of total damage? Did you know that only 14 percent of recorded strikes occur during low-level and range operations, but account for 62 percent of total damage?
Here are more statistics: Horned Larks top the strike-count list, with more than 3,000 recorded strikes in 20 years. All those strikes only account for little more than $2.5 million in damage. Turkey Vultures, on the other hand, rank eighth-highest on the strike-count list, with more than 500 struck. They rank second on the damage list, causing more than $98 million in damage. Number one on the damage-cost list—White Pelicans. Eight known pelicans have been struck over the years, causing a staggering $257 million in damage."
"That's so stupid! If they're so secret, why are they out where everyone can see them?" - my kid
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