Majestic Q400 Autopilot

[Pr1cegum 0]

hi, i have noticed over my last few flights that when the autopilot is turned on its following the path nav, hdg, etc but in doing so is banking slightly right or left i have tried with putting no fwd cargo in but that dosent seem to do the trick

any help would be much appreciated,

 

Julius

[Juliett Alfa Romeo 540]

Rudder Trim, maybe?

[Bruno Duarte 13]

Hi,

As the wind throws the aircraft off the route path, it keeps trying to correct the deviation by banking, since the dash has no auto rudder. Therefore, you need to adjust rudder trim manually to eliminate that. In the PFD, look for the triangles on top of the horizontal stabilizer and adjust rudder trim until the triangles align.

I think this is the explanation, others please correct me if I'm wrong!

Regards,

Bruno.

[Pr1cegum 0]

Ok i will try that thanks

[thepilot 577]

You could alternatively change/lower the following setting in your mjc84.ini file in C:\Program Files\Lockheed Martin\Prepar3D v5\SimObjects\Airplanes\mjc8q400\ini :

YAW_DUE_TO_PROPWASH    =1.0

 

 

[TopGun33 124]

8 hours ago, Bruno Duarte said:

Hi,

As the wind throws the aircraft off the route path, it keeps trying to correct the deviation by banking, since the dash has no auto rudder. Therefore, you need to adjust rudder trim manually to eliminate that. In the PFD, look for the triangles on top of the horizontal stabilizer and adjust rudder trim until the triangles align.

I think this is the explanation, others please correct me if I'm wrong!

Regards,

Bruno.

Actually this is because of the torque produced by the very powerful propellers that you have to manually adjust the rudder trim.

Rudder is never used to compensate for wind during flight, you just adjust your heading so that it offsets the resultant wind component. The only time when rudder could be used against wind would be during take off and landing manoeuvrers, however techniques may vary depending on the aircraft.

Cheers 🙂

Edited December 25, 2021 by TopGun33

[Bruno Duarte 13]

17 minutes ago, TopGun33 said:

Actually this is because of the torque produced by the very powerful propellers that you have to manually adjust the rudder trim.

Rudder is never used to compensate for wind during flight, you just adjust your heading so that it offsets the resultant wind component. The only time when rudder could be used against wind would be during take off and landing manoeuvrers, however techniques may vary depending on the aircraft.

Cheers 🙂

Well, there you have it! Thanks for this and sorry all for spreading wrong information 😣

Cheers!

[TopGun33 124]

You're welcome 🙂

Every other input is appreciated 🙂

[overspeed3 410]

I have had the Majestic Q400 since it was first released.

Honestly, I don't know how real pilots manage to fly that Beast...

[thepilot 577]

11 hours ago, overspeed3 said:

I have had the Majestic Q400 since it was first released.

Honestly, I don't know how real pilots manage to fly that Beast...

Having two guys/gals up front certainly helps I guess 😄