King Air 350 - syncrophaser and autopilot issues
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Hi, I just bought the King Air 350 steam gauge overall. I noticed the following:
- The syncrophaser indicator rotates in the opposite to the expected direction (i.e. it rotates towards the SLOWER propeller, not the FASTER one). This can be noticed during startup after starting one engine, with the syncrophaser rotating towards the engine that is still off.
- The UP/DOWN switch in the autopilot controller unit doesn't seem to always work as intended. In VS and IAS modes it is supposed to modify the rate of climb/descent and the IAS to hold, respectively. But if I press it, sometimes I can see the trim tab make abrupt movements, just to return to its initial position with no changes on the current VS or IAS. The result is that the aircraft makes unrealistic pitch movements. When this happens, I finally must disconnect the autopilot and pilot by hand to regain control of the climb/descent profile.
- Randomly the PMS50 GTN750 unit won't power on when I set the Avionics Master switch to ON. Recycling the switch (OFF then ON again) seems to do the trick, but this is not realistic.
All involved components (MSFS, the PMS50 add-ons, the King Air 350 gauge overhaul) are updated to their latest available version.
If there is need to provide further information to the dev staff, I'm available to do so.Best regards,
Filippo -
Hi, I just bought the King Air 350 steam gauge overall. I noticed the following:
- The syncrophaser indicator rotates in the opposite to the expected direction (i.e. it rotates towards the SLOWER propeller, not the FASTER one). This can be noticed during startup after starting one engine, with the syncrophaser rotating towards the engine that is still off.
- The UP/DOWN switch in the autopilot controller unit doesn't seem to always work as intended. In VS and IAS modes it is supposed to modify the rate of climb/descent and the IAS to hold, respectively. But if I press it, sometimes I can see the trim tab make abrupt movements, just to return to its initial position with no changes on the current VS or IAS. The result is that the aircraft makes unrealistic pitch movements. When this happens, I finally must disconnect the autopilot and pilot by hand to regain control of the climb/descent profile.
- Randomly the PMS50 GTN750 unit won't power on when I set the Avionics Master switch to ON. Recycling the switch (OFF then ON again) seems to do the trick, but this is not realistic.
All involved components (MSFS, the PMS50 add-ons, the King Air 350 gauge overhaul) are updated to their latest available version.
If there is need to provide further information to the dev staff, I'm available to do so.Best regards,
Filippo@filippo1974 Reply for you direct from the developer;
Yes, I noticed the synchrophaser was inverted minutes before releasing the Baron. It will be fixed in the next King Air update.
I cannot reproduce the problem with the VS switch, which is programmed to behave exactly as you describe. Are you using the PMS50 supplied WTT Mode package? This modifies the core code of my aircraft, so I cannot provide continually updated support for the package. If you supply a video, I'm happy to take a look, though.
Lastly, I can also not reproduce the PMS 750 startup issue. Are you using hardware controls for turning on the avionics? The default avionics switch binding for many hardware controllers only toggle one avionics circuit, which is not how the King Air is configured.
I hope some of this is helpful. Please stay in touch if you have more issues.
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@filippo1974 Reply for you direct from the developer;
Yes, I noticed the synchrophaser was inverted minutes before releasing the Baron. It will be fixed in the next King Air update.
I cannot reproduce the problem with the VS switch, which is programmed to behave exactly as you describe. Are you using the PMS50 supplied WTT Mode package? This modifies the core code of my aircraft, so I cannot provide continually updated support for the package. If you supply a video, I'm happy to take a look, though.
Lastly, I can also not reproduce the PMS 750 startup issue. Are you using hardware controls for turning on the avionics? The default avionics switch binding for many hardware controllers only toggle one avionics circuit, which is not how the King Air is configured.
I hope some of this is helpful. Please stay in touch if you have more issues.
@voice-of-reason hi and sorry for the late reply. Today I completed two flights to see if I could reproduce the issue but no, this time everything went smooth. I'll post videos if I can reproduce a similar issue again with the autopilot. Thanks once more.