PPRuNe Forums - View Single Post - AF66 CDG-LAX diverts - uncontained engine failure over Atlantic
Old 2nd Oct 2017, 07:31
  #139 (permalink)  
Onceapilot
 
Join Date: Oct 2012
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Originally Posted by pax britanica
Once apilot.

I agree that the cruising speed on 3 would be much lower would it really be as much as 200Kts less? but the engine is now just a big lump of metal with little airflow through it and no residual thrust whatsoever it must surely add substantial drag to the airframe and be subject to some degree of buffet.

I agree Gander could probably handle several aircraft but the point I was trying to make is that for the AF Operations people trying to extract 400 pax and send them on there way would be pretty challenging as it doesn't have that much scheduled service nor any significant operator based there. though it was nice to see the Canadian military fed them all
PB
Your reference at #112 to "drag, stress, at 500 knots" etc is misleading because the TAS of about 500 knots is actually an IAS of around 300 knots at cruise altitude due to the pressure altitude. In effect, objects feel the air loads of a much lower speed due to the thinner air. 3 engine cruise speed will be slower than 4 engine cruise due to the changes in thrust, drag, max altitude and operating engine sfc etc.
Gander? AF66 went to Goose Bay.
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