Navigation app mishap

[warbaby]

I am a classic navigation nut. I read on the subject, watch videos, however I can consume the info I do it. I plan flights just to do it sometime in the future. I'm a math nut, so navigating by sextant, figuring time and distance from one point to another, figuring wind drift, and fuel consumption is fascinating to me.
I have however tried something different.
I installed a real navigation app on my phone that sailors use to get around. In a pinch, it could be used to actually get where you're going. It has everything that one may need to aid in a trip. So I tried it out.
I set out to fly a B-36 from MacDill AFB to Thule, Greenland. Because...why not?
But right away I noticed the magnetic compass in fs2004 is different from the compass heading in the app. The further north I flew the deviation grew worse, to the point that I reverted back to navigating in the sim itself. I safely landed at Thule by the way.
I think when the sim was made the magnetic North has moved some 500 miles to my estimation. Is there a way to update the magnetic compass in the sim? Or just forget this app all together.
Allen

[mrcapitalism]

www.aero.sors.fr/navaids.html

EDIT: Curious, I looked up some popular nautical navigation apps, and was left with a question: Why are you using resources for ships, when flying an aircraft? One of the best things about navigation in flight simulator is that it works with real aeronautical products, and real air navigation techniques. Yes, you can use sea charts, but...why?

[warbaby]

Thanks for the response, I can't believe I have been doing this long without this info.
As far as the app, it was the first time using it. It is designed for nautical mapping, but it has features that can used for aerial navigation. ETA, route correction, wind drift, celestial tables, etc.

[mrcapitalism]

Feb 17, 2021 8:38:51 GMT -5 warbaby said:

it has features that can used for aerial navigation. ETA, route correction, wind drift, celestial tables, etc.

Yes, that's where pilots got the idea in the first place. Your flightplan also crossed the Appalachian and Baffin Mountains, and is in the vicinity of 4 major metropolitan areas, and their associated airspace. On another website I have seen flight simmers make references to nautical navigation tutorials to new users, apparently not knowing that aviation specific resources exist. I specifically remember a user asking about celestial navigation and being given a video for sail boats, apparently not knowing the long history of airborne celestial nav.
I just wanted to make sure you (and lurkers) were aware of aviation specific tools that accomplish those tasks (and more). For both real aircraft and flight simulators.

[johnhinson]

Feb 16, 2021 15:39:15 GMT -5 warbaby said:

I think when the sim was made the magnetic North has moved some 500 miles to my estimation. Is there a way to update the magnetic compass in the sim? Or just forget this app all together.

An updated magvar file for FS theoretically will fix that issue, although some say it upsets other things in the simulator. See redirect.viglink.com/?key=71fe2139a887ad501313cd8cce3053c5&subId=1410417&u=http%3A//c-aviation.net/fsx-fix/magnetic-variation-in-fsx-problems-and-solutions/

John