Hi Rdlx3m,
no, I think we are not talking about the same.
I would like to do slope landings...
https://youtu.be/BDDu3lDsH-oand one-skid-in-contact-hover manoeuvres...
https://youtu.be/FEXyK79Agc0(sorry, I have not found examples with rc helicopters)
I was doing these things in the past with old-fashioned flybar heads and flybarless multiblade heads (though I must admit that the head/rotorblade combinations were less rigid). After a long break I will now re-enter rc helicopter flying and would like to do these things again. But I want to go for the Spirit FBL system due to other features.
Since I was somehow overtaken by the new technologies there are a lot of things to learn for me and as far as I understand in the normal mode (rigid mode or whatever it is called) a cyclic input means a certain roll-rate around the cyclic axes. This would not work (in my opinion) for the slope landings as in both examples with non-electronically-regulated heads you have to push the cyclic stick in the direction of the slope or contact side while reducing collective. As the FBL will interpret this as a desired roll-rate it will increase the angle of the swashplate by itself and you will have to reduce the cyclic input then and so the pilot will constantly work against the FBL system or vice-versa.
For the stabilisation mode I do not know how it works. Does a cyclic input mean a certain attitude angle or does it mean a certain horizontal shifting speed? Whatever, both would also not work.
The only solutions, in my current understanding of the FBL systems, would be:
1. no stabilisation at all
2. a stabilisation mode where the cyclic stick input is related to an angle of the swashplate (not the helicopter) and the electronic system works only as a damping system for other induced movements (similar to the old tail gyros).
But I only would like to have this mode on one of the banks and I hope that this will be possible with the Spirit system and that somebody can give me a hint on how.
Best regards
Chris