radarbeam
Posts: 998
Joined: Fri Mar 01, 2002 9:00 am

Airbuses Spoilers And Parasite Drag

Sun Jun 16, 2002 9:44 am

Hey folks,

Does anyone knows if the drag created by the reverser doors on airbuses aircraft accounts for a good chunk of the deceleration. Note that I'm suggesting that the doors would be open into the airflow around the engine but no reverse power would be used. I've been wondering that for some time now. I'm guessing that they creates some parasite drag, thus they help slow down the aircraft.


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Regards,
Radarbeam
 
bio15
Posts: 1048
Joined: Fri Mar 23, 2001 8:10 am

RE: Airbuses Spoilers And Parasite Drag

Sun Jun 16, 2002 10:50 am

Correct me if I'm wrong, but if the reverser doors open, bypass airflow will be redirected through them, even at idle power.

Assuming the engine is off, the 4 reverser doors on each engine will interfere with the airflow around the engines by blocking it, so it would help in slowing the aircraft down. Although they don't account for a good chunk of the deacceleration.

-bio

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