Ahh, okey dokes. Then for my own education... I realise that there are two distinct graphs (drag/ias, power/tas) when looking at piston and jet aircraft. I understood that both Vmd and L/Dmax always occurred in the same place: at the tangent to the power curve and at the bottom of the drag curve.
Are you saying the two are not always coincident or are you simply saying that the speed for max excess power is not necessarily the same speed as for Vmd/LDmax? (I suspect the latter!)
If so they "learned" me wrong. "...always fly Vmd in a piston for best climb rate, range in the cruise or range in a glide..." Bah.
gundernak - you clear now?