Me too, I wasn’t thinking too well!
Yup the sound I mentioned was the gyro, it goes away eventually.
Flew GA twins exclusively for the past few days, beginning with developing my own procedure flow for the piston Dukes. This lead to updating the A35 Learjet flow for the GTN750 steps. Which prompted me to finally do a procedure flow for the C414AW/GTN750 based on the Duke. And now that we were into the twin Cessnas, did one for the C310R as well!
I am sharing this because after a bunch of short-ish GA flights sorting out all the possible and unique button bindings, all the checklist items in a reasonable flow for my hardware set-up; I find that I like all of these piston twins equally and very much so! Each one has a unique character and feature set that suits a different mood for a GA flight sim day. Getting back into the twin Cessnas after making friends with the piston Dukes was surprisingly delightful, they are all very nicely modeled and have not lost any of their luster in my GA hangar. Different planes for different days, all super nice really!
Now that I have the piston/TC twins sorted out, back to narrow body airliners for a while then will have to learn the Turbo Duke. That will probably get me to finally recreate controller profiles for the FSR500 which got trashed back in SU15 beta. We have so many excellent models to fly and yes there are some ugly limitations simming in Xbox, but I really don’t have the time to focus on the negatives with so much to do that is enjoyable and engaging of me in MSFS. Cheers!
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I have 3-4 more legs to go on my Piston Duke world circumnavigation. I’ll be definitely ready to give the Turbine and the other twins in my hanger some air time soon!
Question for those of you who use the PMS GTN750 in the Piston. Have you had a case where NAV mode will simply not engage? I’m having this right now, and just once before. HDG mode works fine so I can “follow the magenta” and get there, but looked everywhere but could not get it to work. GTN750 is in GPS mode, green GPS Annunciator is active on upper left panel. Yellow line on HSI is aligned, no deviation, though I’m off course a bit.
ADDENDUM: Now that I’ve started my descent, ATT mode won’t work, so hand flying the rest of the way. No active failures, so I guess it’s a bug. I’ll have the shop at PADU/Unalaska take a look at it when I land. 
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Same problem to me with the GNS 530 / 430. Have you the Honeycomb Bravo? I suspect the malfunction can be related to it.
No, have the Boeing TM Yoke and quads, Streamdecks, etc. It’s only happened twice in dozens of flights. I guess I’ll add it to my preflight checklist. Good experience to hand fly a descent and an NDB arrival, though!
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Now on my next flight, everything with NAV/Autopilot working just fine. [Shrug]
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I have had the issue with the PMS GTN750 where NAV mode will not engage until I am very close to the magenta line…this typically happens after take off. I hand fly until I line up with the GPS route, then engage NAV and the HDG light automatically goes out.
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This last successful flight, I was in HDG mode quite a few miles from the magenta line, but was able to arm NAV. The previous flight, pushing NAV never worked even if on top of the line.
I’m sure it was a bug for either the PMS or the plane (or sim).
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From the manual:
Why can’t I enable the autopilot?
This aircraft has a toggle switch that controls power to the autopilot servo motors. Make sure
the toggle switch to the right of the cockpit lighting dimmers, labeled “PITCH TRIM” is in the on
position. Additionally, check the “PITCH TRIM” circuit breaker on the copilot’s upper side panel
to make sure power is available to the autopilot servo motors.
Black Square - Piston Duke User Guide (2024)
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Pitch Trim was definitely on. If it were off, then I couldn’t engage the autopilot at all. I had A/P on, but it was only working in HDG mode.
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hello
I recently purchased the Duke in the bundle version
I find it splendid in all aspects
I use xbox s
I am well aware of the performance limits of the version but the plane runs very well apart from the cases of black screen if you fly on third-party airports, not all, whether they are more or less complex
In your opinion, are the cause the memory problems of the S version or some incompatibility with the scenarios or both
In any case, in some way you fly, of course you lose a lot of immersion
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All of the above. Aircraft matter. Add ons matter. Live traffic and rendering live weather matters. Rarely, a flight will fail in Xbox. Some flights will be more successful than others.
Yeah I’m running on the X and I just don’t buy 3rd party airports. I’d like some, and I’ve bought one or two that look nicely done but any immersion that 3rd party airports add is completely undone by the stutters so I just don’t. It is what it is, and it’s gotta be worse on the S.
I have some complex planes like the Dukes and I’m even running dual PMS GTNs and performance is fantastic, not an airliner guy but I hear PMDG even managed to optimize the 737 and 777 to run well on the X and usably on the S, I’m a software engineer by trade, that is IMPRESSIVE. Unsure what the issue is with the airports exactly but yeah unfortunately just not worth buying on Xbox IMO.
Both the X and the S have quite impressive graphical capability and TBH I’m a bit confused why they didn’t just give them a bit more RAM, RAM is pretty cheap why not like have the S at 16 like the X and the X at 24 or something?
The hotswappable nav system feature is a bit flaky and is usually the culprit with bugs like these. This seems to be the case even if you haven’t actually swapped anything. Try swapping to some other nav choice and then swap back to the PMS. That will usually clear it up. I get autopilot weirdness periodically using the TDS GTN750nxi and swapping out and back in usually fixes the problem.
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Over the years with this sim, I’ve often found - In fact way ‘too’ often in my opinion - that I will lose core functionality of various aspects of the sim that are only fixable by a full restart. Mostly when i try to start a new flight without restarting the sim; It seems to be reliable only for one flight, then needs a reboot…
It looks like you have not engaged the NAV mode here. Verify in the GNT750 utility/autopilot page.
You have to intercept the magenta line in HDG (or ROLL) mode with NAV mode armed. The AP will automatically switch to NAV when approaching the magenta line.
i always restart the sim between flights. it is indeed extremely buggy otherwise. there are some deep seeded issues buried in the code that hopefully msfs2024 will address
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This isn’t a bad idea. I can usually get two flights in, but you’re right that weird things start to happen.
Yeah, kind of a shame but ends up being a good idea. I like the immersion of leaving it sit for half an hour while you go eat lunch or whatever on stuff like this and the Comanche that accurately simulate the cooldown process and if you’ve landed in Death Valley and let it sit for half an hour in the heat after a flight she might really not want to start up again but the frequenter the restarts the fewer problems plain and simple