Wind Vector Diagram

[Gipper]

Testing to see if I can attach a drawing for Wind Vectors to discuss.

Message says you can't accept a *.pdf file, yet the notes below says you can.

What gives?

Gipper

[napamule2]

Work around is to subscribe to a file sharing site (MediaFire, etc) then just provide a link to the file. The person can download by clicking the link to file (you provide) and have it open to look at it. If it's a picture on a specific page you can copy (Save Image by right click) then paste it into a graphic program (IrFanview, etc). If it's text you can post directly with 'copy' then click on this area and do 'paste'. Work around work around.

Chuck B

Napamule

[Gipper]

[davidjones]

So what do you want to discuss? The diagram says it all. Your ground speed increases by the amount of the true tail wind and you must steer at an angle that compensates for the true cross wind.

 

DJ

[PhantomTweak]

So what do you want to discuss? The diagram says it all. Your ground speed increases by the amount of the true tail wind and you must steer at an angle that compensates for the true cross wind.

 

DJ

 

And I hope you remember your Trig from highschool! Maybe a little Vector Analysis, too.

That's what about 90% of the math involved is, is trigonometry. I looked at your diagram, saw a right triangle, and some of the trig popped into my brain immediately.

Gave me a terrible headache, too, let me say! ;) :D :rolleyes: :p

 

The Windows calculator, included with Win, usually has the trig functions someplace. Helps a lot. Don't have to look up the tables all the time. Not like when I learned, using a slip-stick and pencil/paper. We had to look up all that fun stuff in the back of the textbooks. Cumbersome, at least!

 

Have fun!

Pat☺

[lnuss]

Cumbersome indeed. The wind calculator on the commercial E6Bs made it a lot easier, of course, but a slide rule at least let you work a lot of stuff more readily, even though you may have had to use the tables, so long as you didn't need more than three, or so, significant digits.

[PhantomTweak]

Cumbersome indeed. The wind calculator on the commercial E6Bs made it a lot easier, of course, but a slide rule at least let you work a lot of stuff more readily, even though you may have had to use the tables, so long as you didn't need more than three, or so, significant digits.

 

Hi Larry :)

Yes, the slipstick sure helped! Electronic calculators were a brand new, and very expensive, creation, then. Not permitted in Math during tests. Slide-rules were, however. Oddly, I was the only kid in my class who knew how to use one. Got me through tests pretty quick. After the first couple, some of the other kids wanted to learn them too, strangely enough :)

I was a sorta oxymoron in highschool. Looked like a long-haired hippy, had a good head for Science and Math. Zipped through easy. Even got to Calculus in my senior year, although a lot of that has slipped out of my ears by now...

 

Trig, for me, was easy. Still used it a lot in my Radar work, figuring antenna angles, range capabilities, all that. That, Geometry, and Algebra. A little Calc for figuring signal strength at any given point downrange.

Still use Trig for wind calculations when flying, too. Crosswind components, Course correction, and so on.

Still look odd for a math-head though. Long hair, full beard...I look like the biker I spent most of my adult life as. :D

 

Have fun all!

Pat☺

[StringBean]

No trig needed.

 

Only a sheet of paper, a protractor and a ruler.

 

Or an E6-B, of which you can find a bunch of online versions if you Google it.

 

I have used this one- https://ivao.aero/training/knowledge/e6bcomputer.asp

 

It runs as a stand-alone app on your PC.

 

peace,

the Bean

[davidjones]

But you don't need to do the math. Notice your drift angle off track and double it the other way, if that doesn't do it add the drift angle to your new heading - if it's too much halve it. You should be able to find a correction quickly.

 

DJ

[lnuss]

Yes, the slipstick sure helped! Electronic calculators were a brand new, and very expensive, creation, then.

 

Electronic calculators were a good dozen years in the future when I took trig. Aside from flying, it helps find the height of trees and cliffs, among other things.

[Gipper]

First, let me say, the only reason I brought this subject up was because I am running into substantial differences in data given by FSX during flight and the true answers. I'm not disturbed by it, just looking for information. Let's try a real problem to see what kind of answers we get.

You are flying a B737 at FL340 direct GSO to AFW. Your GPS on board reads as follows:

TRK=264ºM; CTS=278ºM; var=6ºW; GS=435kts; IAS=Mach 0.79. What are the winds aloft, based on the GPS information? Do I have a Headwind or Tailwind? - Gipper

[davidjones]

You have a headwind from about 350@87Kt. Factors you've left out are temperature and calibrated airspeed in Kts. Of course you can always press SHIFT + Z and look at what the simulator is telling you.

 

DJ

[Gipper]

Hi DJ

On the day of the flight, the nearest weather station to the aircraft position at the time, KTYS, was reporting winds at FL340 of 280º at 80 kts, and -52º C. The plane showed IOA temp to be -23ºC. Another question to ponder. I recently discovered the Shift + Z keyboard feature of FSX and now I don't trust it. As to the missing data you referred to, the CAS, ie IAS was 274 KIAS. I believe the TAS was 503 kts. Gipper

[davidjones]

Then my guessed numbers aren't that far off. I suggest you believe what SHIFT + Z tells you, because that is what the sim sees, regardless of real world computations using your aircraft's own numbers. Remember this is a simulation game and not the real world. There are multiple levels of approximation going on.

 

DJ