Flight dynamics and flight controls of some aircraft (self-trimming)

[supernova-III]

I've noticed that the for the most aircraft the control system is kinda FBW. I will be talking about Ifrit, but same applies to the Revoker, Compass, and even Dark Reach. The noticeable feature of their flight dynamics is that the control system trims the aircraft for 1g. But on my joystick, I had to apply too much extra force just to keep flying some simple and stable trajectory like turn, so I decided to check how the aircraft behaves in different regimes of flight.

After flying around a bit I've noticed the following "laws" of flight:
1. the aircraft starts trimming itself for 1g upon reaching certain speed. For example, on the Ifrit with default loadout it's about 570 km/h. For the Dark Reach it's 366 km/h. The g-load goes down when the airspeed goes below the "threshold" value. You can notice it during the takeoff or when approaching to land.
2. The aircraft doesn't trim itself during the turn (roll angle > 0) in every flight regime

What does it mean in practice?
1. If your'e not in medium to high speed wings-level flight, that means you have to apply **extra** force and motion to compensate the absense of the aircraft self-trimming. It's not a problem with mouse controls, but it really hurts when you use joystick (especially if it's heavily loaded like mine).
2. Without manual trim, it's fair to consider this beavior wrong. Typically, self-trimming in pure FBW system should work in pretty much every normal regime of flight (like it does in F-18, F-16).

I believe, it could be better if FBW could trim an aircraft for 1g throughout the entire speed range.

[Stinger]

Looking from the opposite direction, I've found the autotrim to actively fight my inputs when I'm applying gentle stick force. I pull maybe 5% back, nose goes up for a second, but then autotrim pushes forward to hold it steady again. Now stick-neutral results in nose down until autotrim catches up. As you can imagine this is exactly what I want to be dealing with at M0.8, 20m AGL...

[supernova-III]

Originally posted by Stinger:

Looking from the opposite direction, I've found the autotrim to actively fight my inputs when I'm applying gentle stick force. I pull maybe 5% back, nose goes up for a second, but then autotrim pushes forward to hold it steady again. Now stick-neutral results in nose down until autotrim catches up. As you can imagine this is exactly what I want to be dealing with at M0.8, 20m AGL...

yes, this is also a problem...

[supernova-III]

With mouse control you don't experience any of these problems because you do not need to apply any force to keep an aircraft flying with proper g

[Pleh]

Seconded - if we’re simulating FWB controls, then the entire time the gear is up, the trim should hold us in level flight regardless of speed.

If the gear is down, the trim should move to a fixed position based on gross weight, so that the aircraft is trimmed neutrally at the correct approach AoA, so that variations in speed still produce natural response behaviour.

[supernova-III]

up

[supernova-III]

it got better I think...