Difference between HEADING and COURSE

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nrkazmi
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Difference between HEADING and COURSE

Post by nrkazmi » Tue Aug 17, 2004 6:58 pm

Whats the difference between heading and Course. Are they the same thing, although I have seen that they have separate dials in Autopilot.

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Post by ATR_flyer » Tue Aug 17, 2004 7:19 pm

Heading just holds the magnetic heading showed on the compass

Course is the same a NAV hold and it is used to hold either the GPS route, meaning the heading and the left/tight position (<--- --->). And for aligning yourself on the runway approach, or deciding what's the wind correctional angle.



I hope I've been helpful

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Post by skipperdan » Tue Aug 17, 2004 9:16 pm

As stated above, if there is a cross-wind, you have to turn the nose of your aircraft into the wind in order to maintain the correct course. For example, if you want a HEADING of North (360 degrees) and the wind is blowing from the West (270) degrees, you will have to set your HEADING a few degrees to the West in order to maintain a Northerly COURSE 8)
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Check out this article in Air and Space Magazine concerning Albert Whitted Airport:
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Post by Insured Disaster » Tue Aug 17, 2004 9:39 pm

You might want to study "VOR Tracking" to get a good idea of the course info. Basically, the Course has to do with VOR tracking. On the 172 it is called the CRS knob located on the VOR gauges.
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Post by ricktobin » Tue Aug 17, 2004 10:33 pm

nrkazmi, check this link out, it describes navigation in some fairly easy to understand terms.

http://www.navfltsm.addr.com/index.htm

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Post by nrkazmi » Wed Aug 18, 2004 9:50 am

If I fly exactly north from a runway, and the the runway on which I have to land is named 25R, located 350 kms northwest of the current runway, does that mean the Course as well as Heading for this runway would be 250. And if the same runway lies 350 kms to north east, then what becomes of the heading and course.
I mean to say that do these both need to be the same????

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Post by Insured Disaster » Wed Aug 18, 2004 2:47 pm

Ok, that was just the most confusing question ever. :D I have no idea what you are asking. Could you give us another hint? :lol:
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Post by ricktobin » Wed Aug 18, 2004 4:13 pm

I'm not sure if this is going to work but here goes, in the simplest terms I could come up with:

You take off from Red Airfield going to Blue Airfield. Wind is out of the North so you take off on RWY 36 and go straight to Blue Airfiled on a 360 degree HEADING and land on RWY 36. Pretty simple unless ATC has some other routing for you. You got lucky here, in this "world of make believe" your COURSE was short and straight, both RWY's lined up perfectly and presented no navigational challenges.

Now, you're taking off from Red Airfield and want to go to Green Airfield. You take off on RWY 36, now obviously things are going to be a little different at Green Airfield. You can't expect to stay on a 360 degree heading (from Red Airfield) and land on RWY 31 at Green Airfield now can you? So, you alter your COURSE by changing your HEADING to the East and eventually to the Southeast until you find yourself somewhat parallel to the RWY you're going to land on (this is known as the DOWNWIND LEG), then you begin to turn your HEADING around (thus changing your COURSE) to the Northeast to put you on the BASE LEG, then turn to the Northwest to line up on final approach to RWY 31.

Got it?

EDIT: For the completely clueless, I forgot to put the RWY numbers in. In the land of make believe, the wind is always out of the North (360) to Northwest (hmm, say 310) so using the handy-dandy big N and arrow in the middle of the picture, you should be able to figure out what the RWYs are.
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Last edited by ricktobin on Wed Aug 18, 2004 4:41 pm, edited 2 times in total.

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Post by ATR_flyer » Wed Aug 18, 2004 4:20 pm

Heres a pic to understand it better:

The blue line is the FLIGHT PATH, with the runway frequency tuned and the right COURSE, that will guide the plane on the runway centerline.

The bright blue line is the right frequency, but the wrong COURSE, and you can't land that way.

The red line is the heading, just to go straight, be changing the value of the heading, you make turns.

With changing values in the COURSE part, you change the flightpath heading, and the position (blue and bright blue lines)

The big black thing is the plane :lol:

Don't make fun of my seven year old looking drawings :wink:
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Post by nrkazmi » Thu Aug 19, 2004 9:33 am

Millions of Thanks Ricktobin and Atr-Flyer.
The most easy and understandable post by both of you which made the things very very clear in my mind. That was great... I like getting taught this way.
Thanks once again. :D

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Post by ATR_flyer » Thu Aug 19, 2004 4:56 pm

Come on nrkazmi, admit it: my drawing is better, hehehehe :lol:

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Post by nrkazmi » Fri Aug 20, 2004 10:18 am

Ok...Admitted.... :lol:

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Post by timbar » Tue Aug 28, 2007 9:04 pm

I have just googled this question. I have often pondered this very question even though IMHO I am kind of ok with most navigational stuff. Would it be right to say that your heading is what you have to do in order to navigate a certain course ( maybe later in a flight?)

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Post by skipperdan » Tue Aug 28, 2007 9:54 pm

I can just hear GroundSquirrel laughing right now. However, since he has such a great sense of humor, I am going to make him laugh one more time.

Please read the documentation from the following link. It will tell you all about Heading, Course, etc.

http://www.navfltsm.addr.com/index.htm

Here is the part where GroundSquirrel laughs and says, "Skipper, do you really expect them to read"?

The answer to his question is "YES" because this is the only way to learn.
I AM NOT A PILOT. I JUST LOVE AVIATION.

CAPTAIN--CIVIL AIR PATROL
...Emergency Services Training Officer
...Instructor at the Florida Wing Conference 2012.
...Mission Observer (front right seat)
...Air Operations Branch Director
...Flew several times in a Cessna 182 with G1000 (maintaining the MFD).
...Attended two day class conducted by the Air Force Rescue Coordination Center
...Completed training for Flight Line Marshall, Flight Release Officer, and Mission Radio Operator.

You should visit your local Civil Air Patrol Squadron and complete an application for membership.
.
Please watch this video that my son made of a Discovery Flight from Albert Whitted Airport (my home base). http://www.youtube.com/watch?v=-EMUg1jiCss
.
Please check out scenery that I helped develop for Albert Whitted Airport http://www.surclaro.com/download.php?query=KSPG&op=search&cid=
.
Check out this article in Air and Space Magazine concerning Albert Whitted Airport:
http://www.airspacemag.com/history-of-flight/The-Airport-That-Wouldnt-Die.html

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Post by Cat1 » Tue Aug 28, 2007 10:26 pm

Wow look at the date on that one 8O
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If you want to learn how to fly IFR and land with ILS or have any questions about IFR/ILS. Click this link and the information is there: http://www.faa.gov/library/manuals/avia ... _handbook/

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Post by timbar » Wed Aug 29, 2007 12:30 am

On the HSI why do you have to set the heading bug to follow the VOR direction? should NAV hold not do that on its own? Have I missed something?

Thankfully you are far enough away for me to not hear that squirell :lol:

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Post by rd » Wed Aug 29, 2007 4:33 am

LMAO @ Skip
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Post by timbar » Wed Aug 29, 2007 8:12 am

O.K. thats nice but does not quite answer anything!

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Post by rd » Wed Aug 29, 2007 3:06 pm

http://www.flightsimaviation.com/aviati ... art_1.html

Then try that one. 3 pages total, and at the top, a menu to check and read.

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Post by timbar » Thu Aug 30, 2007 8:35 pm

I'll practice my speed reading :wink: :lol:

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Post by skipperdan » Thu Aug 30, 2007 9:21 pm

You do not need to practice your Speed Reading. Instead, you can drive slowly to the local library and check out a book on the subject of Aircraft Navigation. 8) 8)

If you lost your library book, you can always order a book from the Internet.

I have had this book for several month and just love it.
http://www.bruceair.com/

http://www.pcaviator.com/shop/viewAProduct.php?pid=726

http://www.pcaviator.com/shop/viewAProduct.php?pid=9
I AM NOT A PILOT. I JUST LOVE AVIATION.

CAPTAIN--CIVIL AIR PATROL
...Emergency Services Training Officer
...Instructor at the Florida Wing Conference 2012.
...Mission Observer (front right seat)
...Air Operations Branch Director
...Flew several times in a Cessna 182 with G1000 (maintaining the MFD).
...Attended two day class conducted by the Air Force Rescue Coordination Center
...Completed training for Flight Line Marshall, Flight Release Officer, and Mission Radio Operator.

You should visit your local Civil Air Patrol Squadron and complete an application for membership.
.
Please watch this video that my son made of a Discovery Flight from Albert Whitted Airport (my home base). http://www.youtube.com/watch?v=-EMUg1jiCss
.
Please check out scenery that I helped develop for Albert Whitted Airport http://www.surclaro.com/download.php?query=KSPG&op=search&cid=
.
Check out this article in Air and Space Magazine concerning Albert Whitted Airport:
http://www.airspacemag.com/history-of-flight/The-Airport-That-Wouldnt-Die.html

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Post by Cat1 » Fri Aug 31, 2007 12:44 am

timbar wrote:On the HSI why do you have to set the heading bug to follow the VOR direction? should NAV hold not do that on its own? Have I missed something?

Thankfully you are far enough away for me to not hear that squirell :lol:
Short answer is YES, as others have pointed out it's about aircraft navigation.

The reason you have to, as incomprehensible as it seems is that VOR's work on a radio frequency, your air data computer does not. They don't talk to each other until you do something. That includes telling the aircraft where to go, it doesn't read minds any better than a rock garden does.

Your HSI is slaved into the ADC which does all kinds of things, like talk to the auto pilot system. If you don't turn the HSI to follow a radio frequency based navigation beacon who is going to do it?
Image
If you want to learn how to fly IFR and land with ILS or have any questions about IFR/ILS. Click this link and the information is there: http://www.faa.gov/library/manuals/avia ... _handbook/

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Post by timbar » Fri Aug 31, 2007 11:11 am

Thanks. So it is different from the simple VOR, thats what I am working through.

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Re: Difference between HEADING and COURSE

Post by Weega » Thu May 05, 2011 3:03 am

Cmon guys use the KISS keep it simple stupid.....
Magnetic course is the line you draw in the sectional between two points.
Magnetic Heading is the direction where your airplane is pointed to follow this line
Only If there is no wind effect (ideal world) magnetic course and heading will be the same.

I hope this helps to clear your mindsssss after solo many comments

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