RE: Physics of the Funnel?
I'm not sure if I understand your exact question, but the best explanation Ican come up with is.When flying an RC model, as faras the model being flown is concerned it's Right is always Right and Left is always Left. On the ground looking at our model we need to remember this. I have heard people term it as reversing.
Ihope Ianswered your question, and if Idid I'm glad Icould help. If Ididn't and Ijust added more confusion, please forgive me.
Aloha,
Les