Because they feel good
It's the experience !
We have lots of technical mumbo jumbo on the subject of annular wings, including the reason why the hydrodynamic and aerodynamic establishment are sometimes unable to understand them properly: Just how does one compare a semi circular or circular wing with a flat one? Do we compare wings of the same planshape area? Or do we compare wings which produce the same amount of lift in a given situation? Perhaps we could compare wings which have the same surface area ? The establishment tends to do the first i.e they compare flat and annular wings of the same planshape area. . .. . that leads to some misleading conclusions which have kept annular wings in relative obscurity , as we shall see. . .
It's the experience !
We have lots of technical mumbo jumbo on the subject of annular wings, including the reason why the hydrodynamic and aerodynamic establishment are sometimes unable to understand them properly: Just how does one compare a semi circular or circular wing with a flat one? Do we compare wings of the same planshape area? Or do we compare wings which produce the same amount of lift in a given situation? Perhaps we could compare wings which have the same surface area ? The establishment tends to do the first i.e they compare flat and annular wings of the same planshape area. . .. . that leads to some misleading conclusions which have kept annular wings in relative obscurity , as we shall see. . .
