The turbine type DFWT device 1, in which a bottom horizontally oriented flap can be pitched outward, down, or relatively inward, up, in order to produce more or less lift in co planar conjunction with {TAIL ~ the roof top extended planar pressure zone}, so that the relative mass of the DFWT, and the tendency of the entire DFWT unit to pitch backward against the concentric double nested rotationally capable pipe attachment to {HEAD ~ the base}, can be off set dynamically by the lift generated by said bottom flap 
The turbine type DFWT device 1 , in which a bottom horizontally oriented flap can be pitched outward , down , or relatively inward , up , in order to produce more or less lift in co planar conjunction with { TAIL ~ the roof top extended planar pressure zone } , so that the relative mass of the DFWT , and the tendency of the entire DFWT unit to pitch backward against the concentric double nested rotationally capable pipe attachment to { HEAD ~ the base } , can be off set dynamically by the lift generated by said bottom flap
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH