SCHOOL AIRCRAFT Russian patent published in 2016 - IPC B64C1/00 B64C39/02 

FIELD: aircraft engineering.

SUBSTANCE: this aircraft comprises pull propeller propulsor, undercarriage, high-lift wing and fuselage with crew cabin produced with cockpit canopy coupled with fuselage spine fairing and tail with horizontal and vertical empennage with elevators and yaw rudders and control members. Note here that fuselage cross-sections at section with fuselage spine fairing smoothly changing from above to vertical empennage are composed of symmetric drop-like large-width profiles converging from profile lower part to its upper part with profile height decreasing toward vertical empennage at increasing curvature of their lower and upper pars.

EFFECT: higher stability and damping to supercritical angles of attack to rule out unintended spin stall.

2 cl, 5 dwg