Hi,

I'm completely new to the MD-11, but didn't have an absolutely hard time following the tutorial included. That being said I'm slightly confused as to what is put in the TEMP/WIND field in the FMS when I'm starting flights that are inconsistent with the tutorial. It says it is the temperature and wind of the first enroute fix, but where do I find the first enroute fix and the temp and wind reaedings?

Average cruise wind component and Top of Climb temperature.

You can find this using a weather program like ASE, or by using real aviation weather sources, like http://aviationweather.gov .

Thanks Kyle.

So if I'm cruising at, say FL300, and the winds were 29 knots from 70 degrees, and temp was -36C, that would go into the WIND/TEMP line as -26/TL029 correct?

Yes.

(I'm assuming your -26/TL029 was meant to be -36, and that 070 is directly on your tail)

 

Remember, though, that ASE or the like will give you an average cruise temp. The aircraft wants the temp at the top of climb, which may be vastly different.

 

 

As an example, an average temp from MIA to IAD would be fine right now (the ISA at TOC would likely be the same as the ISA close to IAD). If I were flying from ATL to SEA, as an example, it could be off, especially if I was climbing into those orange zones.

Yes.

(I'm assuming your -26/TL029 was meant to be -36, and that 070 is directly on your tail)

Yes sorry for the typo, -26 was indeed meant to be -36. Ahh so if I have a tailwind I put TL029, headwind HD029, what about any kind of crosswind? And thanks, I understand the temperature situation now!

I remember md-11 the wind type is WIND COMPONENT,you can use this link to calculate.

http://www.aeroplann...ate&hw=60&xw=10

BTW,i used this way to calculate TEMP/WIND in INIT(maybe wrong),if my T/C is between E and F,then F waypoint wind is FL350/120(degree)/45,F course is 12 degree,so wind component result is TL014(-14).

Yes sorry for the typo, -26 was indeed meant to be -36. Ahh so if I have a tailwind I put TL029, headwind HD029, what about any kind of crosswind? And thanks, I understand the temperature situation now!

 

No prob. With the wind, you calculate the component. ActiveSky will give you this as well. It'll say something like 261/38 and then below it -26. Meaning, for the entire route, I'm averaging a headwind of 26 knots (taking into account that the wind isn't directly on the nose). If you want to calculate this yourself, you'd use a slide rule (E6B) and take the average of the segment headwind components.