Flight model research for helicopters

Can someone please point me to the Wiki article where we can learn how the helicopter FM is being designed / researched.

What i see in REALISTIC mode in tems of helicopter manouvers makes me wonder if this things have any FM.

Thank you in advance!

videos on youtube work as well

Can you point me to an official video which shows how they research helicopter FM, please.

So, can anyone point me to the helicopter flight model page?