Bonanza autopilot
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I am having some trouble with VS and ALT modes on this autopilot. Pressing ALT engages altitude hold, but pressing it again does not disengage ALT mode.. Also, pressing VS engages the vertical preset, but sometimes when engaging the autopilot afterward, the vertical speed will go to 3000 ft/min in spite of this. Also, the altitude alerter can indicate VS with no ARM, but the annunciator shows ARM..
Hard to know what exactly is going on..Is there still some work being done on refining this behavior?
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@bert-pieke From the developer:
Altitude hold mode should disengage when pressing the altitude button, as you describe. If it is not, then it's like caused by some combination of GPS addons, or out-of-date GPS addons. For instance, Black Square offers no guarantee or support for the PMS50 "WTT Mod", which makes its own changes to the autopilot. Just for clarity, that's not the WT GNS 530/430, which is fully supported. The WTT mods are available on pms50.com/msfs/, and are preferred by some users of the payware PMS50 GTN750. As for altitude arming modes, this is a known bug in MSFS, which does not fully support altitude and vertical speed arming. This is one of the things that the WTT Mod from PMS attempts to address. I will add the annunciator code to my list of items to take a second pass at for the next update. Thank you for your feedback! --I just tested disengaging the altitude hold mode myself with all GPS configurations available in the aircraft, and can confirm that it's working as expected with everything installed correctly and up-to-date.
Hope that helps, Bert.
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@voice-of-reason Thanks!
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@Voice-of-Reason Spending more time with the autopilot... two things.
- A simple one.. when engaging the autopilot with the Z key, the flight director does not turn on.
Workaround: (A:AUTOPILOT MASTER,bool) (A:AUTOPILOT FLIGHT DIRECTOR ACTIVE, Bool) ! and if{ (>K:TOGGLE_FLIGHT_DIRECTOR) }
- More complicated issue.. when first engaging the autopilot, I get a runaway trim situation. After disengaging the autopilot and returning the trim to neutral, and engaging the autopilot a second time, I get a slower trim runaway situation. After doing this twice, I can engage the autopilot without the trim running away. After this, the autopilot seems to operate fine.
*** Update: Disregard this issue. I discovered that manually setting elevator trim to zero before take-off avoids this behavior, and the Rob Young flight model had a higher "elevator trim neutral" value which made it worse. Simply returning this value to 3 from 11 seems to have done the trick.. The G36 seems to set elevator trim to zero when engaging the autopilot, the A36 does not.
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@bert-pieke Hi Bert, can you please explain in more detail at which position the workaround has to be entered?
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@raller
[AIRPLANE_GEOMETRY]
....
load_safety_factor = 1.5
elevator_trim_neutral = 3 ; 11 -
@bert-pieke :thumbs_up:
