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ERJF15 03-30-2010 02:52 PM

Dfw Rnav Sids
 
Guys/Gals

Be careful when climbing out of DFW during RNAV SID's in strong cross winds. For the Embraer, the FD may initially indicate a turn in the opposite direction of the true course. This can cause you to drift toward the center of airport and maybe in the departure path of the aircraft departing from the other side of the field.

Just trying to give a heads up. Make sure your FMS's are correct and Be careful!

meeko031 03-30-2010 03:26 PM


Originally Posted by ERJF15 (Post 786852)
Guys/Gals

Be careful when climbing out of DFW during RNAV SID's in strong cross winds. For the Embraer, the FD may initially indicate a turn in the opposite direction of the true course. This can cause you to drift toward the center of airport and maybe in the departure path of the aircraft departing from the other side of the field.

Just trying to give a heads up. Make sure your FMS's are correct and Be careful!

Ahh, you guys are the reason why we get the company message every other week about checking the sid. :D

is it just eagle or are there any reports of other violations?

withthatsaid182 03-30-2010 03:28 PM

maybe it's time to simulate this in the sim.

ERJF15 03-30-2010 03:56 PM


Originally Posted by meeko031 (Post 786877)
Ahh, you guys are the reason why we get the company message every other week about checking the sid. :D

is it just eagle or are there any reports of other violations?

It's happening to other companies. It hasn't happened to me, but I know a few of us that it has. You can have everything correct and following the FD. Next thing you know, departure says give us a call when you get to XYZ.

I try not to do any turns unless the FD matches the course.


Originally Posted by withthatsaid182 (Post 786879)
maybe it's time to simulate this in the sim.

It's already been done.

Bloodhound 03-30-2010 04:23 PM

I've got a buddy (XJT) who was called to an ASAP meeting for this exact thing.

ERJF15 03-30-2010 04:43 PM

We just gotta make sure that the FD is giving the correct info before we start doing what it says.

AV8N101 03-30-2010 06:38 PM


Originally Posted by ERJF15 (Post 786852)
Guys/Gals

Be careful when climbing out of DFW during RNAV SID's in strong cross winds. For the Embraer, the FD may initially indicate a turn in the opposite direction of the true course. This can cause you to drift toward the center of airport and maybe in the departure path of the aircraft departing from the other side of the field.

Just trying to give a heads up. Make sure your FMS's are correct and Be careful!

Good Info...

Be sure to watch out on those "cold and light" days too. When you make that climb sooner, rather than later to the "float'n fix (altitude)"...the FMS will from time to time get confused and try to fly an "intercept to fix" radial (turn the wrong way) instead of making a direct turn to the first "hard" fix on the SID. Not nearly as common on the E145's unless the load is very light or with the strong x-winds that ERJF15 mentioned, but have seen this more than once when fly'n the few E135's that pass thru DFW (not to mention, a couple of times on the E140's too).

Remember...be safe out there, and verify it before y'all fly it! ;)

AV8N101



Tinpusher007 03-31-2010 06:59 AM

At XJ, they don't even let us hand-fly those things...A/P n at 600ft!

Bloodhound 03-31-2010 07:18 AM

A/P is what will get you in trouble in THIS situation.

ERJF15 03-31-2010 07:42 AM


Originally Posted by Tinpusher007 (Post 787214)
At XJ, they don't even let us hand-fly those things...A/P n at 600ft!


It's been an option at EGL. Problem is, you click on the AP and then you'll ask the Airbus question...now what is this thing doing?

"EGL 1234...call this numebr when you get to BFE! Also, BOHIC!"

withthatsaid182 03-31-2010 08:21 AM

this is why NE flying is the best...even the tricky ones like DCA just require you to bang a hard left after take off...

are there any tricky approaches out west? i know up here we have:

KDCA: Visual 1 circle to land on 33 or Anything to Rwy 19

KLGA: Expressway visual...not bad after you figure it out...

KJFK: VOR 13L...

KBOS: Landing on 32...

CYHZ (Halifax): it seems like the wx up there is always lousy and never moves...

at least I found these places to require some thinking...however there are many greater men/women than I

jayray2 03-31-2010 08:47 AM


Originally Posted by Tinpusher007 (Post 787214)
At XJ, they don't even let us hand-fly those things...A/P n at 600ft!

Are you sure? I have never seen anything that says the AP is mandatory. There is something in the POM about the AP being "available." Could you point me out the reference?

Tinpusher007 03-31-2010 10:47 AM


Originally Posted by jayray2 (Post 787281)
Are you sure? I have never seen anything that says the AP is mandatory. There is something in the POM about the AP being "available." Could you point me out the reference?

"Off the runway" RNAV SIDS like the ones in DFW are supposed to be flown A/P coupled right at 600ft. POM 6.1.13 #13 "For RNAV departure procedures, the pilot must be able to engage the auto pilot promptly at 600 feet above airport elevation."

I know it says "must be able to" and not "must engage" but they've always been pretty clear since we've started flying these DP's that they don't want us hand-flying them.

Tinpusher007 03-31-2010 10:48 AM


Originally Posted by withthatsaid182 (Post 787267)
this is why NE flying is the best...even the tricky ones like DCA just require you to bang a hard left after take off...

are there any tricky approaches out west? i know up here we have:

KDCA: Visual 1 circle to land on 33 or Anything to Rwy 19

KLGA: Expressway visual...not bad after you figure it out...

KJFK: VOR 13L...

KBOS: Landing on 32...

CYHZ (Halifax): it seems like the wx up there is always lousy and never moves...

at least I found these places to require some thinking...however there are many greater men/women than I

Im with you, but the NE is home for me. Most guys I fly with don't really want to be bothered with it.

Tinpusher007 03-31-2010 10:54 AM


Originally Posted by AV8N101 (Post 787015)
Good Info...

Be sure to watch out on those "cold and light" days too. When you make that climb sooner, rather than later to the "float'n fix (altitude)"...the FMS will from time to time get confused and try to fly an "intercept to fix" radial (turn the wrong way) instead of making a direct turn to the first "hard" fix on the SID. Not nearly as common on the E145's unless the load is very light or with the strong x-winds that ERJF15 mentioned, but have seen this more than once when fly'n the few E135's that pass thru DFW (not to mention, a couple of times on the E140's too).

Remember...be safe out there, and verify it before y'all fly it! ;)

AV8N101



The a/p on the crj does a really nice job intercepting and tracking the "fms course" in white needles so I have not seen a problem like the one you're describing. However once, I departed for MEM and was pretty light and therefore airborne pretty quickly and we realized the a/p was coupled to the wrong f/d. So we hit the XFR button and it started a sharp turn the wrong way. That got us a phone call and an asap report. But other than that, the "hands-off" approach seems to work fine.

Bloodhound 03-31-2010 01:17 PM

Unfortunately, the E145 doesn't always do so well at intercepting. Sometimes, affectionately called "clearing turns" or "Stevie Wonder impression," it will turn to go get the course. Say you're on a heading of 360 and the course is 040, instead of waiting for it to come in and turn right on course (even though it already knows the winds), it will turn left to go get it. Sometimes it does it, sometimes, it doesn't, and it does it to varying degrees. At most altitudes, I'd be surprised that it's even that noticeable on a radar scope but it has come to be a big deal on these departures.

ERJF15 03-31-2010 01:42 PM


Originally Posted by withthatsaid182 (Post 787267)
this is why NE flying is the best...even the tricky ones like DCA just require you to bang a hard left after take off...



Actually DFW is pretty easy to get in or get out of. You just have your crap programed correctly and pay attention to what's going on. I think it's better than ORD.

That's just me.

dojetdriver 03-31-2010 01:57 PM


Originally Posted by withthatsaid182 (Post 787267)
this is why NE flying is the best...even the tricky ones like DCA just require you to bang a hard left after take off...

When I was BOS based in 2002-2003, there was revised guidance that came out on the RNAV departure off of 27 that CONSIDERABLY narrowed the corridor. Not sure if it's still the case.


Originally Posted by withthatsaid182 (Post 787267)
are there any tricky approaches out west?

RNO can be a PITA.

The bridge visual into SFO can be fun. You're usually left pretty high, as well as have speed restrictions such as "keep the speed up for the 74 behind you but don't overtake the Brazillia landing on the parallel."


Originally Posted by withthatsaid182 (Post 787267)
i know up here we have:

KLGA: Expressway visual...not bad after you figure it out...

Only as hard as you make it, or if you're an FO, how hard the CA wants to make it. It's not anything more than a downwind entry with landmarks and reference points for the base/final. Super easy if it's in the FMS data base on an VNAV equipped airplane. At least till the controller tells to you square the base to final for seperation.


Originally Posted by withthatsaid182 (Post 787267)
KJFK: VOR 13L...

A fun approach, especially when right at mins an using the lights. Even cooler to be on the ground and watch a heavy doing the sidestep to the right.

ExperimentalAB 03-31-2010 04:05 PM

Uhhh...so y'all are just blindly following the pink??

EDIT: directed to the first few posters!


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