PPRuNe Forums - MD-80 Elevator

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dcoded

26th April 2012 10:15

MD-80 Elevator

Some days ago I was walking through the airport and saw an MD-80 at the gate.

One thing I noticed was the elevator deflection.

One part (the right side) was deflected with a steep angle and the other (the left side) was deflected slightly lower?

Is there a reason for this split?

Capt Claret

26th April 2012 12:26

Assuming the MD80 elevator system is the same as the Douglas/Boeing 717 (same pedigree, the venerable DC9) the elevators are deflected in flight by servo tabs, therefore able to deflect at different angles when not in flight and the breeze is not uniform.

MarkerInbound

26th April 2012 15:06

To further the good Captain's reply, there is no connection between the left and right elevators. Since they are air driven (no hydralics except a nose down accumulator for when you're having a really bad day) they flop in the breeze.

dcoded

26th April 2012 18:43

thank you very much the both of you for your replies!

Capt. Greaseon

27th April 2012 21:23

Long live the MADDOG!!!

FlightPathOBN

28th April 2012 02:39

Give it a break, its 30 years old....

Its just tired...:zzz:

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