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-   -   Birdstrikes (https://www.pprune.org/tech-log/324798-birdstrikes.html)

Cptn Titus 28th April 2008 23:21

Birdstrikes
 
Does anyone know, if turning on the weather radar for take off, help to avoid a birdstrike?

callum11223344 28th April 2008 23:42

haha is this a joke?

Cptn Titus 29th April 2008 01:03

Nope, it is not. It is a question for experienced pilots flying airline jets. My company has changed the SOPs in order to include turning on the radar just before take off. There has been numerous birdstrikes, and it seems that the weather radar provides, though little, some help. Any comments?...

lomapaseo 29th April 2008 03:17

No supporting data, including instrumenting the little buggers and measuring their response.

Might as well paint keep away signs on the radome and engine inlets.

belowMDA 29th April 2008 03:43

Having it on didn't help me the other day when I smoked three on landing! :8

Our procedures have us turning it on just after initiating the taxi. It is used as a tool to help gauge wx around the airport rather than scaring the birds away. A shotgun works better for that job I think.

pasoundman 29th April 2008 03:50


Cptn Titus
Does anyone know, if turning on the weather radar for take off, help to avoid a birdstrike?
Is this idea based on the hope of cooking them and causing them to 'fall out of the sky' (and out of the way) before they can get ingested ?

I've heard of military radars being capable of 'shooting down' birds in flight.

OutOfRunWay 29th April 2008 07:57

Radar
 
Microwave and Radar emissions do disturb birds, and I vaguely remember some university doing tests about this at my local airport, but the transmission power from aircraft weather radars is just too small to have any effect at all, especially if youre heading towards that buzzard with 180kt.


OORW

wobble2plank 29th April 2008 08:23

Maybe you'll get a return just before hitting, if its a bloody big bird :E

Canuckbirdstrike 29th April 2008 11:42

The old urban legend surfaces again....

Aircraft weather radar has absolutely no effect on birds. While bird senses are much better than humans, there is just not enough power in the aircraft units for them to sense the waves. Lots of research has been done on this and unless you are talking an AWACS or other very powerful military radars there is no chance this will work. The urban legend flows from some early very powerful military radar systems.

For further information on this issue and strategies to reduce bird strikes go to the Transport Canada website and look for the link to the on-line copy of the book "Sharing the Skies". Yes, I am one of the authors and no I don't get a commission on the sales!

I have worked in this area for years and can assure you that there is no scientific evidence that this works.

timbash 29th April 2008 14:47

timbash
 
I concur, turning on the radar will have no discernable effect on birds.

roljoe 29th April 2008 16:53

But, switching on all available onboard bright lights will be more efficient,..

birds are quite sensitive to light sources...specially when those sources are not located as they would be in their mind (like the sun)..

Still not the ultimate way to avoid birdstrike, but...in waiting for it..

Dream Land 30th April 2008 05:33


The old urban legend surfaces again....

Aircraft weather radar has absolutely no effect on birds.
IMO, absolutely correct, also our lights are always on for take off, no help there either.

Capt Claret 30th April 2008 06:19

I flew the 146 for some 5 years. So many bird strikes that the Ops people caled me a chick magnet, and they weren't being complementary. :sad:

In the 2 and a bit years I've flown the 717, I've only experienced one bird strike. The ports, routes, and times are constant between the two types.

I'd be interested in any theory as to why the 717 has been significantly less prone to bird strike.

call100 30th April 2008 10:31

You killed them all with your 146!!!!!!:eek::)

RemoteDiagnostic 30th April 2008 12:20

Difference 146 vs 717
 
I would say that the engine position makes the difference.

Centaurus 30th April 2008 13:25

Amazing how some pilots just love to bore down at high speed (320 knots plus) below 10,000 and even below 5000 ft risking lives in an area where birds fly and the damage to the windows (and crew) could be fatal. Good fun and macho and all that stuff but potentially deadly. Maybe they rely on their radar to frighten birds out of the way...read earlier posts re radar myths.

rcl7700 30th April 2008 14:02

Again no proof, but in a period of 2 months I hit everything in the air that had feathers (they didn't call me the chick magnet, but they should've). I don't know if this is common in the CRJ, but they mostly hit close to the cockpit so it was easy to keep track of one's kills. This also coincided with the end of the rainy season in Mexico, and I was switching my radar off and switching to terrain on approach and initial climb (no clouds, many mountains). The cheif pilot finally wrote me an email asking me if I was using radar on approach and landing. In each strike my radar was off. It has been on ever since and I haven't killed anything (at least to my knowledge). The birds are happier, maintenance is happier, and I haven't had to write a report in close to a year. Radar on seems to work for me.

rcl

Cptn Titus 5th May 2008 01:52

Thanks guys, for all the posts.

stilton 5th May 2008 03:25

How would anyone know :confused:

CaptainSandL 5th May 2008 08:10

Bat strikes
 
I too had never heard of a bat strike, then I saw this in the newspaper yesterday...


Bird in engine grounds plane
04/05/2008

Prague - A Boeing 737 passenger plane of the budget airline Ryanair had to make an emergency landing at Brno in the Czech Republic after a bird was sucked into one of its jet engines, the airport said on Sunday.

The plane had taken off from Brno for London's Stanstead airport on Saturday when the incident occurred and it turned back, said the airport manager.

"It was a member of ground staff who noticed an unusual sound from one of the engines," he said.

The plane had to complete its takeoff climb then circle for some time in order to empty its reserve tanks as a safety measure.

During the emergency landing the plane also hit a bat, the official said.

None of the 150 passengers and crew were injured.


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