I have since discovered that this program will allow you to do inverted flight - given that it has a full F3D Helicopter as one of the models to choose from - it makes sense. I can now practice inverted flight without worrying about expensive crashes. (If I can do it low enough, I have a novel way of cutting the grass next year !!

)
And another little pic for you, everyone seems to want one of these and this one is a dream to fly as it is so responsive.
Regards.......Mark.