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Old 2nd Mar 2011, 14:46
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rooaaiast
 
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Birdstrikes, effects and preventative action

Having read the above IMHO I would like to make a few points.
The first is to separate damage to the airframe from damage to the engine.
To reduce airframe damage ( which is usually non-catasthropic for flight safety) it is best to keep 250kts below 10,000', to reduce forward speed- 1/2mv^2 etc.
Engine damage, particularly double-engine strike damage is much more serious. The most important factor is to reduce the tip rotation speed by reducing engine power to the minimum possible for safe flight.
It is official Airbus policy ( apologies I can't find the Airbus Safety Bulletin just now on the Web, but it is there somewhere ) if encountering birds on approach , to continue at as low an engine power as possible.
Under no circumstances is a Go Around at high power to be attempted.
This has been my company's policy (A320/330) for a while now.
With regard to the "60 bank", good luck to anyone trying that in O'Hare on 27L, with an AA777 on port on 28 and a UA/(Connie?) 757 on 27R on starboard !
Hope this adds some light.
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