Annular airfoil for missiles, airplanes and helicopters, has radial profile, and air is sucked upwards by radial blower and blown radially inwards at annular blade, which has classical wing profile running from inwards to outwards

摘要

The annular airfoil has a radial profile. Air is aspirated and flown radially on the annular airfoil. The profile of the annular airfoil is designed for optimal tire load. Air is sucked upwards by a radial blower and blown radially inwards at an annular blade, which has a classical wing profile running from inwards to outwards.