초록 ▼

An aircraft is disclosed having a jet engine whose exhaust stream flow rearwardly from above the trailing edge of a main wing of the craft, and having an auxiliary airfoil which is lower than and offset rearwardly with respect to the wing and acts during takeoff to augment thrust and lift, and durin

An aircraft is disclosed having a jet engine whose exhaust stream flow rearwardly from above the trailing edge of a main wing of the craft, and having an auxiliary airfoil which is lower than and offset rearwardly with respect to the wing and acts during takeoff to augment thrust and lift, and during braking and landing to increase drag and lift. The airfoil is mounted for adjusting movement between a cruise position in which it is generally parallel to but lower than and spaced from the wing and one or more inclined positions for takeoff, landing and braking in which the airfoil has its leading edge spaced rearwardly and downwardly from the trailing edge of the wing and defines with that trailing edge a gap across which the jet engine exhaust stream flows in a relation drawing air through the gap from under the wing.

대표청구항 ▼

An aircraft having a short field takeoff and landing capability comprising: a fuselage; a main wing attached to said fuselage; a jet engine emitting substantially its entire exhaust stream at a location to flow rearwardly from above the trailing edge of said wing; an auxiliary thrust augmenting airf

An aircraft having a short field takeoff and landing capability comprising: a fuselage; a main wing attached to said fuselage; a jet engine emitting substantially its entire exhaust stream at a location to flow rearwardly from above the trailing edge of said wing; an auxiliary thrust augmenting airfoil which is lower than and offset rearwardly with respect to said wing; and means mounting said thrust augmenting airfoil for adjusting movement relative to the fuselage and wing between a cruise position in which said airfoil is generally parallel to, but lower than, and spaced a substantial distance from the wing, and a takeoff position in which the airfoil is inclined at a downward and rearward angle of attack in a manner inducing downward and rearward movement of said exhaust stream by the Coanda Effect, with said airfoil in said takeoff position having its leading edge spaced rearwardly and downwardly from the trailing edge of the wing to define with said trailing edge a gap across which said exhaust stream flows in a relation drawing air through the gap from under the wing to attain thrust augmentation.