Question:
EXPLAIN A HEADING INDICATOR IN THE AIRPLANE ?
2008-12-01 05:04:05 UTC
when someone says turn a heading of 261 where is that on the heading on the indicator like it says 3 6 then like 22 then 26 i don 't get it what does those little line stand for?????????????????
Ten answers:
JoelKatz
2008-12-01 05:15:35 UTC
If your heading indicator goes from 0 (or 10) to 35 (or 36), then it is showing headings in ten degree increments. North is often indicated by N instead of 0 or 36. Similarly for S, E, and W.



261 would be between 26 and 27 (or W), much closer to 26.



If the heading indicator goes from 21 to 24 to W, then 21 is 210 degrees, 24 is 240, and W is 270. The larger dashes will be 10 degrees and the smaller dashes 5 degrees. On a heading indicator like that (pic linked below), 260 is the fat line just to the left of the fat line for W. The skinny line between those two fat lines is 265. So 261 is close to the fat line.



The fat line between the 2 and the 4 of '24' is 240. The next fat line to the right is 250, and so on.
Walter
2008-12-01 10:47:39 UTC
Please examine this image:

http://i38.tinypic.com/2u6k86c.png



I am going to describe this in simple terms.



The heading indicator (alternatively called the directional gyro) is made up of a pointer and a card with markings on.



The N marking means North, which is 000˚ or 360˚ (both the same thing). The E marking means East, which is 090˚. The S marking means South, which is 180˚. The W marking means West, which is 270˚. As you can see, these directions go up each time by 90˚.



You will then see numbers like 3, 6, 12, 15, 21, 24, 30 and 33. Basically, these markings go up by 30˚, so:



3 means 030˚

6 means 060˚

12 means 120˚

15 means 150˚

21 means 210˚

24 means 240˚

30 means 300˚

33 means 330˚



Wait a minute? I just said they go up by 30˚ but look at 6 and 12, that goes up by 60˚. Well, don't forget that N, E, S and W are in between there too.



Next, there are larger lines which do not have numbers next to. These are 10˚ lines. Look at the image of the heading indicator I have posted. Find W at the top (West is 270˚ remember.) The next large line to the right is 280˚ because large lines are 10˚. The tiny lines in between mean 5˚.



Hope I helped! Keep practicing and reading more and more articles about the heading indicator. More importantly - do a flight for the fun of it and keep looking at your heading indicator as you will soon figure out how it works and helps you.



A good exercise to do when learning about the heading indicator is to randomly pick a heading (300˚ or 255˚ or 037˚) and see if you can locate it on your heading indicator. This is allow you to get used to the markings. Start off with easy headings and then try more difficult ones.
Shelley
2016-03-22 20:24:36 UTC
Go buy yourself any private pilot book, Boarders and Barns& Noble each have a good selection. I'll try to help you out a little but I don't think I, or anyone else here can do what a book will be able to do for you. A VOR puts out a signal on a VHF frequency. Within that signal are 360 sub-signals (not quite, but its a good way to think about it) one for each degree of magnetic bearing. The receiver in the aircraft is used to tune in that signal which sends the information to the CDI (course deviation indicator, fancy name for the instrument that works with a VOR and also an ILS, sometimes gps or other area navigation systems you may have) or HSI. I assume you're speaking of a setup with a directional gyro and a separate CDI. If you are looking at an HSI (the dg with a nav display combined, weather it be a physical gauge of part of a glass panel, works slightly differently) Without getting into how a VOR works the reason your heading indicator does not line up with the cdi is because the heading indicator changes any time your heading changes, that is every time you make a turn. The cdi only changes when you tell it to. It has no brains of its own so to speak. So you put the radial you want to fly into the cdi, and using your heading indicator, you navigate to intercept the radial. If you have wind you will have to angle, or crab, into the wind to stay on your radial. More often than not the heading will be a few degrees off from the obs (omni-bearing selector, the adjustable part of a cdi) to correct for wind. Do some reading, there is a ton of information on this topic, far more than I'm willing to write on here. And having an actual private pilot book will help a lot even with sim flying.
2016-10-02 04:17:16 UTC
Heading Indicator
Mark
2008-12-02 12:48:08 UTC
Are you talking about a heading indicator, or a directional gyro?



They are both "gyroscopic direction indicators."



Different instruments.



Heading indicators are not installed in many airplanes now. A heading indicator has the azimuth scale displayed on a drum. Only a part of the scale is visible, and it takes practice to use the instrument well. Graduated in 5º increments. The full azimuth field has to be pictured mentally.



A directional gyro has the azimuth scale displayed on a disk. The entire scale is visible. Graduated in 5º increments. It is easy to interpret, and has an airplane symbol at the center.
2015-08-07 21:28:15 UTC
This Site Might Help You.



RE:

EXPLAIN A HEADING INDICATOR IN THE AIRPLANE ?

when someone says turn a heading of 261 where is that on the heading on the indicator like it says 3 6 then like 22 then 26 i don 't get it what does those little line stand for?????????????????
mcdonaldcj
2008-12-02 19:41:37 UTC
each small tick on a heading indicator (also called a direction indicator) marks out 10 degrees on a circle.. with the top (pointing up) being 0 degrees, to the right being 90 degrees, pointing down being 180 degrees and finally to the left being 270 degrees.. so if a pilot tells you to turn to a heading of 260 degrees, it will be one mark below the 270 degree mark pointing to the left
Rex K
2008-12-01 15:19:58 UTC
Most pilots use the gyro compass that's in the center of the dash. You also have a magnetic compass. To comfortably navigate..keep in mind the concept that you are "flying around" the compass. Naturally taking the shortest route, unless you are in a "controlled zone" & are directed otherwise.
Airmech
2008-12-01 14:30:03 UTC
Add one "0" to everything on the indicator. Then pretend it is a circular ruler.
2008-12-01 10:14:04 UTC
It is a compass!!!!!!!!!!!!!!!!!!!!!!!



261 is almost due west.



0 is North. 90 is east. 180 is south. 270 is west, and 360 is as close to 0 as you can get.



I am so happy that I learned this in the Boy Scouts when I was 10 years old.


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