[aerohead]

* ' [T]here is not a simple relationship between overall lift and drag.' Hucho,page 123, 2nd-Edition,1987.
* ' [B]ecause the aspect ratio... is very small for vehicles a breakdown of the flow field into two-and three-dimensional components is not possible.The effect of the vortex field can therefore not be separated from that of the other flow field,as is possible for aircraft wings with high aspect ratio.' Hucho,page 122, 2nd-Edition, 1987.