How do I find my heading on the NPP?

[Wikikomoto]

Hello! It's been a few years since I've flown around in DCS, and I'm having a problem finding my heading. I can't seem to find a comprehensive guide on how the NPP works when not using it for radio navigation. I'm just looking to use it as a basic compass to get my basic heading. Which ring of numbers do I use, and how to I get a magnetic heading? 

[Ala13_ManOWar]

Basic heading is just pointed by the white filled big triangle on top, (don't pay attention to the names written there, the red ones are wrongly marked BTW)

 

What has changed, indeed, if you haven't used it in a long time, is how RSBN/ARK needles work and their logic which was reversed during module's first time (reversed as those red labels there). When I came back to the module myself a couple years ago I also spent a hard time trying to understand what was going on until I figured out they had reverted it all to match real behaviour which was wrongly understood by devs at first.

[Frederf]

7 hours ago, Wikikomoto said:

Hello! It's been a few years since I've flown around in DCS, and I'm having a problem finding my heading. I can't seem to find a comprehensive guide on how the NPP works when not using it for radio navigation. I'm just looking to use it as a basic compass to get my basic heading. Which ring of numbers do I use, and how to I get a magnetic heading? 

The inner moving ring compared with the top lubber index is your true heading. For example the heading in the picture above is 175°T. The outer ring just shows other relative bearings so one can quickly find what "120 degrees bearing" is in absolute bearing, e.g. 295°T in the picture above. It's also useful when making turns based on relative pointer bearings. The "2 3 4" marks are also used in this way for the #2, #3, #4 turns in the landing pattern. There is no way to read magnetic heading from this instrument. You'll have to know and add the variation yourself.

[Wikikomoto]

Thank you both so much!! completely answered my question  

[Rudel_chw]

On 7/30/2022 at 1:52 PM, Frederf said:

The inner moving ring compared with the top lubber index is your true heading. For example the heading in the picture above is 175°T. The outer ring just shows other relative bearings so one can quickly find what "120 degrees bearing" is in absolute bearing, e.g. 295°T in the picture above. It's also useful when making turns based on relative pointer bearings. The "2 3 4" marks are also used in this way for the #2, #3, #4 turns in the landing pattern. There is no way to read magnetic heading from this instrument.

 

Hi,

Thank you so much for clarifying this, I was led by the Module Manual (page 54) to believe that the NPP showed magnetic bearings ... but just tested and you are right, the NPP reads True bearings.

I'd like to know more on how to employ the "2 3 4" reference marks, by any chance do you have perhaps a diagram, or a more verbose description on how to perform the pattern using these marks? Thanks a lot for any help with this 

Cheers,

 

Eduardo

[corn322]

Using the 2, 3, 4 marks to fly the RSBN box pattern is described in page 120 of the MiG-21 Manual.

[Rudel_chw]

5 minutes ago, corn322 said:

Using the 2, 3, 4 marks to fly the RSBN box pattern is described in page 120 of the MiG-21 Manual.

 

Thanks a lot .. should have read that manual a lot closer, but I was relying on the easier to read Guide by Chuck 

 

Now, straight to practice this and see if I can make sense of it