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Fenix A321 Stability During Takeoff Roll

Featured Replies

  • Author
6 hours ago, Aamir said:

The rudder on the A320 is REALLY powerful so you still have effectiveness at VMCG (minimum ground effectiveness) - the purpose of this is to be able to counteract the asymetric thrust if an engine were to fail at lower speeds but high thrust output (i.e before V1, at TOGA) - the rudder is so powerful that the aircraft itself will limit allowable rudder inputs above 180knts in flight so you don't rip the tail clean off. This reduction is from 30 degrees of deflection down to around about 8 degrees if I remember correctly. Now, to give you an idea of the input you need to place to achieve this rudder limit of 8 degrees, it's about 1 inch of rudder pedal travel..

The point to all the above - the rudder is powerful, and sensitive. Treat with care and an abundance of respect. And please configure your sensitivities - we've tried to capture this facet of the airplane but it requires cooperation on your side to calibrate your hardware appropriately to this "sensitivity", by reducing your hardware sensitivity if it's uncomfortable. Feel free to use the rudder damping options to further help. 

After reading your response, I tried a few different values of reduced rudder sensitivities and I think I am on the right track for finding sensitivity values that work (including taking into consideration the Rudder Damping option).  What confused me a bit is that I use the same rudder sensitivities for all three A/C- they are fine for the A319, kind of OK for the A320, not good for the A321 so I opted to check with more knowledgeable people rather than going on a wild goose chase.  By the way, I am currently on MSFS2020. 

Thank you very much for the help. 

zachlog

  • Author
7 hours ago, jcomm said:

The FENIX even added e "feature" to it's options, accessible through the EFB, that modulates rudder input to make it less quirky as seen by default in FS 2020, and although a bit better in FS 2024 too.

All aircraft are extremely responsive to rudder / tiler inputs during taxi and the takeoff and rollout phases, and enabling that option makes a noticeable difference, at least in my case:

What option was added to the FENIX A320 for MSFS in order to make rudder inputs less sensitive?

The FENIX A320 for Microsoft Flight Simulator (MSFS) introduced a "Rudder Damping" option to make rudder inputs less sensitive. This setting can be adjusted in the EFB (Electronic Flight Bag) under the Fenix App's Sim Settings, specifically in the Controls section.

You can use this option with linear rudder sensitivity and then fine-tune the sensitivity according to your preferences. If you choose not to use the rudder damping option, it's recommended to set a minimum sensitivity of -40%

I will start with -50% and Rudder Damping disabled, and then go from there.....thanks !!!

zachlog

22 minutes ago, zachlog said:

I will start with -50% and Rudder Damping disabled, and then go from there.....thanks !!!

Glad it helped... "my Copilot" never fails... I even pasted above how I asked "him"/ "it"... whatever 🙂 

Edited by jcomm

Flying gliders since 1980

Flightsimming since 1992

AMD Ryzen 5600x, 32GB RAM, GPU Nvidia RTX 3060 Ti 8 GB, 1 TB and 500 GB nvme2 SSD drives, HP 27" 60Hz LED monitor @ 1920x1080, T16000, Hotas from old X52 Pro, Saitek Combat Rudder Pro (2010 model)

4 hours ago, zachlog said:

I will start with -50% and Rudder Damping disabled, and then go from there.....thanks !!!

Also worth considering rudder controls that use hall effect transistors rather than potentiometers, Hafs are more reliable, accurate and have better resolution. This helped me a lot with the Fenix.

Rudder Damping helps a lot thanks Aamir, I didn;t see that switch.

Regards,

Max    

(YSSY)

i7-12700K | Corsair Vengeance LPX 64GB 3600MHz DDR4 | Gigabyte RTX4090 24Gb | Gigabyte Z690 AORUS ELITE DDR4 | Corsair HX1200 PSU

 

Here are my settings which nail the centerline on takeoff, every time. Rudder sensitivity L -20 R  -20.  Rudder damper on.  Full nose forward at start of roll, till 100 knots, then neutral yoke until rotation. 

 

 

 

23 hours ago, Bobsk8 said:

Here are my settings which nail the centerline on takeoff, every time. Rudder sensitivity L -20 R  -20.  Rudder damper on.  Full nose forward at start of roll, till 100 knots, then neutral yoke until rotation. 

I tried these including rudder damping. Much easier to handle the aircraft on the ground + takeoff roll.

7950X3D | RTX 4090 | 64GB DDR5

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