That wasn't very well articulated.  At zero lift, there is some parasite drag, but you never see zero lift so it's the induced drag that dominates, and except at cruise you're at pretty high Cl, so induced drag is quite high.  You quit reading too soon.  Go over the rest of the post and tell me where I went wrong.

WALTER KERR wrote:

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /> At zero lift it has some parasite drag, but it's the induced drag that dominates.

Hi Jim, Doesn't make better sense to me, I fell off the sled with the opening statement that at zero lift the induced drag dominates, and I have a degree in aero engineering :>)  If I can remember back to aero 101 in the 50's, the induced drag is a function of lift coef. squared and would be zero at zero angle of attack. I believe the prop runs at a high negative angle of attack when it is windmilling with load and approachs the zero lift angle of attack when freewheeling. When the prop is loaded or stopped, the disk theory does not apply, it only the drag of the stick. Bernie Kerr

--
Jim Sower ... Destiny's Plaything
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T