Dear Isaak,
I have rebased my GIT with your SVN. Thanks.
Due to bad FDM behavior, at touchdown, the nose tends to slam down due to the low speeds. I did not notice this behavior when I touched down about 132kts. (140kts approach). But maybe I can do something.
The C*U is designed that you should pretend it is not there. Essentially, it does what regular airplanes do. The 777 YAsim does not behave how it should. Generally, if you are level flight and trimmed, put some downward trim in a conventional aircraft, the aircraft will tend to speed up, then pitch up a bit and slow down, a few times until it settles at an airspeed in a descent. The C*U law essentially sharpens up the trim behavior and makes it more predictable. All you need to do is use the trim keys to adjust the trim ref speed until the pitch stays stable, just like how on a conventional aircraft you use the trim keys to adjust the hstab until the pitch stays stable. The other big advantage of C*U is that the aircraft only needs to be trimmed when changing speed. If changing configuration, like adding flaps, the system compensates automatically. Please see this video here for more info:
https://www.youtube.com/watch?
Timestamp 12:50.
I have attempted to emulate this behavior.
So if the plane is pushing you down, you need to "trim up". So use the trim up keys to do that, which decreases the trim ref speed.
Essentially, pretend the law isn't there and you are flying conventionally a realistic FDM and for the most part, it will behave as you expect.
Kind Regards,
Josh