Gyro compass spinning in Milviz Blackbird Cessna 310R

kevinbuckley70 commented 3 months ago

If I replay any flight in the Milviz Blackbird Cessna 310R, the magnetic compass is fine but the gyro compass just continuously rotates. Consequently, the aircraft icon on the GNS530 also continuously rotates.

This is unrelated to the actual heading of the aircraft and makes cockpit video capture wrong.

No special steps are needed to observe this behaviour. Just replay a flight and look at the gyro compass.

Everything is latest version as I always stay up to date.

till213 commented 2 months ago

Sky Dolly currently does not record / replay any simulation variable related to the "gyro compass": so whatever movement you see on that compass is currently due to the aircraft logic itself being applied to the gyro compass, based on the simulation variables that control the attitude during replay, most specifically simply the "true airplane heading":

https://docs.flightsimulator.com/html/Programming_Tools/SimVars/Aircraft_SimVars/Aircraft_Misc_Variables.htm#PLANE_HEADING_DEGREES_TRUE

That being said, I just noticed that there actually is a simulation variable - even "writeable" - that seems to relate to the "gyro heading":

https://docs.flightsimulator.com/html/Programming_Tools/SimVars/Aircraft_SimVars/Aircraft_Misc_Variables.htm#PLANE_HEADING_DEGREES_GYRO

(and also in analogy from the "magnetic heading").

I will try and record/replay this (those) additional variable(s) and see whether it makes any difference.

Can you reproduce this issue also with a "stock airplane"? Because I do not own this 3rd party aircraft "Cessna 310R". That would greatly help me to reproduce this issue and check whether the above would actually fix the issue.

Thanks for reporting, and I am sorry for my late reply!

kevinbuckley70 commented 2 months ago

Thanks for the response. I'll have a play with a stock aircraft and see if that also does it. Sent from my Galaxy -------- Original message --------From: Oliver Knoll @.> Date: 02/09/2024 19:19 (GMT+00:00) To: till213/SkyDolly @.> Cc: kevinbuckley70 @.>, Author @.> Subject: Re: [till213/SkyDolly] Gyro compass spinning in Milviz Blackbird Cessna 310R (Issue #177) Sky Dolly currently does not record / replay any simulation variable related to the "gyro compass": so whatever movement you see on that compass is currently due to the aircraft logic itself being applied to the gyro compass, based on the simulation variables that control the attitude during replay, most specifically simply the "true airplane heading": https://docs.flightsimulator.com/html/Programming_Tools/SimVars/Aircraft_SimVars/Aircraft_Misc_Variables.htm#PLANE_HEADING_DEGREES_TRUE That being said, I just noticed that there actually is a simulation variable - even "writeable" - that seems to relate to the "gyro heading": https://docs.flightsimulator.com/html/Programming_Tools/SimVars/Aircraft_SimVars/Aircraft_Misc_Variables.htm#PLANE_HEADING_DEGREES_GYRO (and also in analogy from the "magnetic heading"). I will try and record/replay this (those) additional variable(s) and see whether it makes any difference. Can you reproduce this issue also with a "stock airplane"? Because I do not own this 3rd party aircraft "Cessna 310R". That would greatly help me to reproduce this issue and check whether the above would actually fix the issue. Thanks for reporting, and I am sorry for my late reply!

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kevinbuckley70 commented 3 weeks ago

By the way – I just figured out what was the cause of the gyro compass spinning. If you set the replay speed much faster than ‘Normal’, and the aircraft executes a turn, it causes the gyro compass to tumble. - Kevin

From: Oliver Knoll @.> Sent: 02 September 2024 19:19 To: till213/SkyDolly @.> Cc: kevinbuckley70 @.>; Author @.> Subject: Re: [till213/SkyDolly] Gyro compass spinning in Milviz Blackbird Cessna 310R (Issue #177)