<![CDATA[Duke - whiskey compass grossly incorrect]]>I was flying the Grand Duke and although rarely refer to the whiskey compass, I did note yesterday how grossly incorrect it was.

The whisky compass was reading 290, and my electric/gyro compass was reading 265. I also checked the magnetic heading in the GTN750 readout to confirm my suspicion, and it also read 265 magnetic.

I also checked that no windshield heating was active.

I just wanted to pass this info. back in case it's something that slipped through, or got spoiled in one of the SimUpdates.

]]>https://community.justflight.com/topic/11328/duke-whiskey-compass-grossly-incorrectRSS for NodeSun, 06 Sep 2026 12:17:53 GMTSun, 06 Sep 2026 10:14:41 GMT60<![CDATA[Reply to Duke - whiskey compass grossly incorrect on Sun, 06 Sep 2026 10:21:46 GMT]]>OK no problem, wilco.

]]>https://community.justflight.com/post/54525https://community.justflight.com/post/54525Sun, 06 Sep 2026 10:21:46 GMT<![CDATA[Reply to Duke - whiskey compass grossly incorrect on Sun, 06 Sep 2026 10:20:52 GMT]]>@Captain_J Many other high current electrical systems can effect the magnetic compass, but it should not be as much as 25°. I just tested this, and I don't see any discrepancy, so please grab a screenshot of the entire cockpit next time you see the issue.

]]>https://community.justflight.com/post/54524https://community.justflight.com/post/54524Sun, 06 Sep 2026 10:20:52 GMT