FIELD: aircraft engineering.
SUBSTANCE: invention relates to aviation. In compliance with the first version, multirotor helicopter comprises fuselage, rotors and two extra rotors with their plane of rotation intersecting that of the aforesaid rotors. Relationship between gear ratio between two extra rotors and rotors is selected with due allowance for the number of blades of the rotor and that of extra rotors. In compliance with the second version, multirotor helicopter has fuselage and rotors with their shank parts that feature double-edged section.
EFFECT: reduced propeller drag in inclined flight.
2 cl, 4 dwg
| Title | Year | Author | Number |
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| HELICOPTER ROTOR | 2010 |
|
RU2448020C1 |
