200 Below Class B
#12
Gets Weekends Off
Joined APC: Feb 2008
Posts: 19,224
The point is you don't have to put flaps out to comply with this restriction, nor with the 250kts below 10,000 ft restriction. If I'm over 250 below 10,000, I'll let ATC know as a courtesy to give them a heads up for separation. So yes, any 737-400,800,900 would have to put flaps out to fly at 200. I used to fly the MD-80 and occasionally the clean maneuver speed would be 255-260 when you were heavy. Obviously heavy jets need to exceed 250 to stay clean on departure as well.
#14
Line Holder
Joined APC: Jan 2008
Position: B747 FO
Posts: 45
My airline got in some trouble with the FAA because we would routinely exceed the 250 below 10.000 upon departure! Note in route documentation now that says unless specific approval is given to exceed 250, speed should be 250, even if this means climbing to 10.000 with flaps 1! Specific places that complained where Lax and ORD.
#16
Gets Weekends Off
Joined APC: Feb 2008
Posts: 19,224
I would read the FAR. You are confusing minimum clean speed with minimum safe speed. It's not unsafe to extend slats or flaps. On climb out you can exceed 250 if clean is higher however that does not apply to below class bravo. The climb out portion is a specific FAA interpretation.
#17
This situation happens to us sometimes while departing PAE in the LFC Dreamlifter. You are underneath SEA class B.
We fly heavies all over the world, and I have never heard of anyone getting into "trouble" over this.
Many controllers will preemptively give you the "high speed approved" clearance on initial contact.
We fly heavies all over the world, and I have never heard of anyone getting into "trouble" over this.
Many controllers will preemptively give you the "high speed approved" clearance on initial contact.
#18
So I would be interested in hearing from guys leave ATL on let's say the DAWGS departure on the south side taking off west. At the 90 degree turn to go downwind it says 250kts until the turn. What do you do? Keep slats/flaps out until making the turn?
#19
Gets Weekends Off
Joined APC: May 2010
Posts: 342
This situation happens to us sometimes while departing PAE in the LFC Dreamlifter. You are underneath SEA class B.
We fly heavies all over the world, and I have never heard of anyone getting into "trouble" over this.
Many controllers will preemptively give you the "high speed approved" clearance on initial contact.
We fly heavies all over the world, and I have never heard of anyone getting into "trouble" over this.
Many controllers will preemptively give you the "high speed approved" clearance on initial contact.
In the U.S., controllers may approve higher speeds in Class C and D airspace. The situation cited above is not a valid clearance.
#20
As usual, we are not the first people to ask this question.
http://www.faa.gov/about/office_org/...rpretation.pdf
http://www.faa.gov/about/office_org/...rpretation.pdf
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