Description of the issue: During a flight the HSI gyro heading drifts without any way to realign the HSI. The gyro drift rate is about 10° right per hour. The offset appeared after an hour of flight and remained constant at 1hr40min, appearing to only increase at full hour increments.
Gyro drift occurs with Gyro Drift Compensation setting “Disabled”
Keybinds for Set/Increase/Decrease Heading Indicator Drift do not realign the HSI in the DHC6.
FREQUENCY OF ISSUE
How often does this occur for you (Example: Just once, every time on sim load, intermittently)? Every time after an hour.
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
In Settings > Assistances: Ensure Gyro Drift Compensation is not checked.
Select the DHC6 in Free Flight.
Fly for greater than one hour.
Observe the HSI gyro drift is ~10° right of the whiskey compass, EFB reported heading, or auto pilot heading mode selected heading.
Observe there is no way to correct the HSI alignment.
YOUR SETTINGS
Issue still occurs with no mods and add-ons.
What peripherals are you using, if relevant:
[PC Only] Are you using Developer Mode or have you made any changes to it? No.
[PC Only] What other relevant PC specs can you share? SU3 1.5.27.0 DHC6 v 5.27.0
Which command did you bind ?. The one that works to realign to the HSI heading indicator is the “Set Heading Indicator”, not the “Set Heading Indicator Drift” (don’t know what are doing the drift ones). In FS2024 there is no default binding, you need to assign one.
This is the default binding in FS2020, nevertheless, if you are using the default 2024 Transversal profile, you need to assign a command, by default there is none.
Whether or not the keybinds work, I think the core bug remains that there should always be a virtual cockpit knob to adjust this if the instrument is susceptible to gyro drift. This is an issue in a number of first and third party aircraft and may be something that needs resolved at the SDK level, not sure.
And it’s frustrating that some of these bugs are marked with a solution when the solution is technically a workaround to realign an instrument that shouldn’t have drifted to begin with.
