A friend sent me the link below to a news story about the damage a pelican did to a F-111 jet in Australia. The picture is really amazing. I have read occasional stories about bird strikes, but this is one of the few pics I’ve seen. Link to the story is here:
F-111So that got me wondering, and I looked around and found a fair amount of info on Wikipedia. Some of the tidbits:
The impact of a 5 kg (12 pound) bird at 240 km/h (150 mph) equals that of a 1/2 ton (1000 pound) weight dropped from a height of 3 meters (10 feet).
Most large commercial jet engines include design features that ensure they can safely shut-down after "ingesting" a bird weighing up to 1.8 kg (4 lb). The engine does not have to survive the ingestion, just be safely shut down. This is a 'stand alone' requirement, i.e., the engine must pass the test, not the aircraft.
Modern jet aircraft structures must be able to withstand one four pound bird collision; the empennage (tail) must withstand one 8 pound bird collision. Cockpit windows on jet aircraft must be able to withstand one 4 pound bird collision without yielding or spawlding.
The first reported bird strike was by Orville Wright in 1905, and according to their diaries Orville … flew 4,751 meters in 4 minutes 45 seconds, four complete circles. Twice passed over fence into Beard's cornfield. Chased flock of birds for two rounds and killed one which fell on top of the upper surface and after a time fell off when swinging a sharp curve
The greatest loss of life directly linked to a bird strike was on October 4, 1960, when Eastern Air Lines Flight 375, a Lockheed L-188 Electra flying from Boston, flew through a flock of common starlings during take off, damaging all four engines. The plane crashed shortly after take-off into Boston harbor, with 62 fatalities. Subsequently, minimum bird ingestion standards for jet engines were developed by the FAA.
Aircraft continue to be lost on a routine basis to birdstrikes. In the fall of 2006 the USAF lost a twin engine T-38 trainer to a bird strike (ducks) and in the October 2007 the US Navy lost a T-45 jet trainer in a collision with a bird.
In the summer of 2007 Delta Air Lines suffered serious incident in Rome, Italy, as one of its B-767 aircraft, on takeoff, ingested yellow legged gulls into both engines. Although the aircraft returned to Rome safely, both engines were damaged and had to be changed. United Air Lines suffered a twin engine bird ingestion by a B-767 on departure from Chicago's O'Hare Field in the spring of 2007. One engine caught fire and bird remains were found in the other engine.
To reduce birdstrikes on takeoff and landing, airports are required to engage in bird management and control.
Other approaches try to scare away the birds using frightening devices, for example sounds, lights, pyrotechnics, radio-controlled airplanes, decoy animals/corpses, lasers, dogs etc.[2]Firearms are also occasionally employed.
A successful approach in recent years has been the utilization of dogs, including German shepherds, English pointers and border collies, to scare away birds and wildlife. Another alternative is bird capture and relocation.
Falcons are sometimes used to harass the bird population, as for example on John F. Kennedy International Airport.[1] At Manchester Airport in England the usual type of falcon used for this is a peregrine falcon/lanner falcon hybrid, as its habitual flight range is about the right size to cover the airport and not also much irrelevant land around.
An airport in New Zealand uses electrified mats to reduce the number of worms that attracted large numbers of sea gulls.[1]
Link to full wikepedia entry is below:
WikipediaBird