well well....
Root causes : - The root cause of 'weight shift' or ' weight transfer ' is the law of physics. Second law of newton if I remember..... Unless we build up a ' antigravity field startrek style ', we can't escape but luckily we may still deal with it.
This is real and quite well simulated on FG.
are you sure the forces acting are fine :- I am assuming YASIM FDM coding is right regarding the law of physics. ( I still have a doubt about yaw axes but the matrix mathematics are very complex and I need more time and energy to fully understand and conclude on this )
- I am also assuming that YASIM aircraft design ( frame, engine, propeller,... ) has been made right.
to say my core hypothesis is that the aircraft simulation has been made as close as possible to what a real aircraft is. This is a thinking at a mechanics level, not computer coding level.
Based on this, little toe out on main gear taildragger FG plane ( just like on real plane ) should improve ground stability and flying experience. This is the only little objective of this research.
And yes, like in real world, tittle toe out stabilise, little toe in unsabilise FG tailplanes.
As you says, a deep study of YASIM coding law of physics compliance should be amazing but I think very very few people have the knowledge to do so. ( I am far yet from being good enough for this job ... )
Bgrs
ZVY