Going, on a jet plane (NOT)

[Contratrombone64]

Mum, I really want to go on my first airplane flight ... that is, until I read about this. Now I'll walk, thanks! (the delightful little extract below, does not breach copyright as it is far less than 10% of the NTSB report). The actual incident was the one where the plane took of from New York and swallowed some canada geese, then ditched into the Hudson River ... all survived (thank goodness), remember the news footage?

If a bird enters the engine inlet near the inner radius (near the spinner), a portion of it may be ingested by the engine core because of the radius’ proximity to the core. Both engine spinners on the accident airplane exhibited soft-body impact damage, indicating that both engines ingested a bird very near the inner radius of the engine inlet and that some of that bird mass entered the engine core. Although all of the left and right engine fan blades were present and intact, three of the left engine fan blades and five of the right engine fan blades exhibited damage indicating that both engines ingested a second bird near the fan midspan, but, because it was ingested near the edge of the fan blades, none of that bird mass entered the core.
When a turbofan engine ingests birds and no fan blades are fractured, the damage to the fan blades is generally localized because the bird will affect only those fan blades that actually impact or slice it as it passes through the fan plane. The number of fan blades affected by the impact is determined by the bird size, the relative bird velocity with respect to the airplane, the rotational fan speed, and the bird-impact angle. As the fan blades impact and slice the bird, the impact forces against the fan blades can be high enough to permanently deform and twist them as they bend and vibrate in response to the impact. Although the fan blades of both engines showed evidence of bird ingestion and subsequent mechanical damage, as noted, no significant fan blade damage or fractures were found.
Gouging was found on both engines’ forward acoustical panels in the fan inlet case. Turbofan engine fan blades are designed to accelerate only compressible materials, such as air. When rotating fan blades contact a denser, noncompressible material, such as water, they will "bite" into the water, which will cause the blades to bend forward and cause gouging. Therefore, the fan rotors of both engines were rotating upon water impact

 

[Corno Dolce]

CT64,

Please, please, please - understand that the engines being made today are designed to function even after swallowing a full-grown swan without loss of thrust. Yes, bird ingestion by jet engines is a problem and airports located within the vicinity of bird sanctuaries are places of high risk - It is a standing problem on how to get the bird population to stay away from areas of aircraft operation. Many airports have trained specialists who use owls to control bird movement, among other things....

 

[teddy]

I remember the case well David. A wonderful piece of flying by the pilot, if not by the geese.

teddy

 

[marval]

Yes, the pilots did a great job, it must have been very scary for everyone. My mother would never fly, until her brother died and she had to fly up to Edinburgh. She loved it, the pilot knew she was nervous and greeted her on the plane, that was when she was in her eighties. All passengers rely on good pilots, the one that came down in the Hudson River had well trained pilots who kept their cool. I am not sure what the best way is to keep the birds out of the flight paths.


Margaret

 

[Contratrombone64]

@ Corno: Not according to the NTSB they're not. Where do you get your facts from?

 

[Contratrombone64]

I remember the case well David. A wonderful piece of flying by the pilot, if not by the geese.

teddy

Yep - the geese's flying sucked (tish boom)

 

[JHC]

CT64,

Please, please, please - understand that the engines being made today are designed to function even after swallowing a full-grown swan without loss of thrust. Yes, bird ingestion by jet engines is a problem and airports located within the vicinity of bird sanctuaries are places of high risk - It is a standing problem on how to get the bird population to stay away from areas of aircraft operation. Many airports have trained specialists who use owls to control bird movement, among other things....

Under development in Argentina is a huge passenger plane with a Toyota wide mouth jet which has a deflector rotor that stops anything from entering.

 

[Corno Dolce]

@ Corno: Not according to the NTSB they're not. Where do you get your facts from?

Facts?, there's the FAA (Federal Aviation Administration) and then, of course, there are the not so publicly disseminated reports from the engine manufacturers themselves.

 

[Contratrombone64]

Under development in Argentina is a huge passenger plane with a Toyota wide mouth jet which has a deflector rotor that stops anything from entering.

Colin, Sounds fascinating, can you provide a link?

 

[teddy]

Under development in Argentina is a huge passenger plane with a Toyota wide mouth jet which has a deflector rotor that stops anything from entering.

I could do with that. Might help me lose weight

teddy

 

[JHC]

Colin, Sounds fascinating, can you provide a link?

David as you will understand being a project under development there could not possibly be any kind of link, The manufacturer and country were made up by me as I don’t know them myself, however the project is real enough as far as I know, I was told this by a member of my golf club a couple of weeks ago he has a daughter working on it, but of course no details were given to me.