COMBINED AIRCRAFT Russian patent published in 2016 - IPC B64C27/24 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aircraft engineering and can be used in designing apparatus, capable to fly in helicopter and aircraft modes. In a combined aircraft, including aircraft fuselage, wing screw equipped with means of its fixation in two positions relative to fuselage lengthwise axis, at least one jet turbine engine front fins and tail unit, a screw-wing is made of at least two pairs of blades, symmetric about its rotational axis, blades of one pair have length exceeding the length of blades of other pairs, the lock screw-wing is to be locked in position when the blade length is located at angle of 90° to fuselage lengthwise axis, and in another position, when the blade length is located along the fuselage lengthwise axis.

EFFECT: prevention of asymmetry of screw-wing frontal resistance at changing its position under aircraft mode and thus eliminating occurrence of parasitic turning moments by rolling, pitch and yaw, excluding asymmetric flap vortex caused by this disturbance.

1 cl, 6 dwg