FFS vs FTD
Can anyone point me in the right area regarding flight training on a Full Flight Sim (full motion) vs Fixed Training Device. In particular I am interested in the restrictions imposed on FTD for multi-engine initial training.
I really can't find any limitations when looking at FAA 61.4 or 61.65 or any CASA (Australia) requirements.
Thoughts??
If there are no restrictions why would company's "fork out" loads of money for a FFS??