|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/13 ; 244/121 ; 244/36|
|발명자 / 주소|
|인용정보||피인용 횟수 : 13 인용 특허 : 1|
Lift for an aircraft is provided by forming a longitudinal lifting duct therethrough, said lifting duct having a substantially planar roof and a longitudinally cambered floor. When the aircraft is driven forwardly, a stream of air enters and passes through the lifting duct and the contouring of the floor of the lifting duct give rise to a pressure gradient in the air stream which result in a higher pressure on the roof of the lifting duct than on the floor thereof so that the pressure difference provides lift for the aircraft.
In an externally wingless aircraft having a fuselage and means for providing lift for the aircraft, the improvement wherein an internally disposed lifting duct having an essentially unobstructed opening extending entirely therethrough is formed longitudinally through the fuselage, said lifting duct having a substantially planar roof extending entirely across the width thereof and a longitudinally cambered floor such that the lifting duct forms said means for providing lift for the aircraft and provide an internal wing therefor, wherein the fuselage has o...