FIELD: aeronautical engineering.
SUBSTANCE: triple-wing aircraft is provided with center wing (2) mounted on fuselage (1) which is retracted during flight, i.e. it is sunken flush with fuselage surface. When necessary, this wing is raised above fuselage with the aid of jacks (3,4) and struts (5,6). Fuselage is widened and has aerofoil profile.
EFFECT: enhanced stability of gliding flight and additional deceleration in the course of landing.
2 dwg
