FIELD: aircraft engineering.
SUBSTANCE: invention relates to the field of aircraft construction and concerns an aerodynamic profile for the butt and the middle sections of the main rotor blades and the tail rotor of an aircraft. The aerodynamic profile of the aircraft lifting element includes the upper and the lower contours formed by convex curves and their intersection points with the given coordinates relative to the profile chord and has a rounded leading edge.
EFFECT: improved aerodynamic characteristics of profiles for the butt and middle sections of propeller blades, improved flight data of the aircraft in hovering and forward flight, an acceptable low level of variable and constant loads in the lifting system, and aeroelastic stability in a wide range of flight speeds are achieved.
4 cl, 4 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| AERODYNAMIC PROFILE OF AIRCRAFT LIFTING ELEMENT | 2023 |
|
RU2808865C1 |
| AERODYNAMIC PROFILE OF AIRCRAFT LIFTING ELEMENT | 2023 |
|
RU2808522C1 |
| AERODYNAMIC PROFILE OF BEARING SURFACE CROSS-SECTION (VERSIONS) | 2014 |
|
RU2559181C1 |
| AERODYNAMIC PROFILE OF THE AIRCRAFT CARRIER ELEMENT | 2020 |
|
RU2752502C1 |
| AERODYNAMIC PROFILE OF THE AIRCRAFT CARRIER | 2021 |
|
RU2762464C1 |
| AERODYNAMIC PROFILE OF LOAD-BEARING MEMBER OF FLYING VEHICLE | 1996 |
|
RU2098321C1 |
| AERODYNAMIC PROFILE OF CROSS SECTION OF LIFTING SURFACE AREA | 2014 |
|
RU2558539C1 |
| AERODYNAMIC PROFILE OF CROSS SECTION OF LIFTING SURFACE AREA (VERSIONS) | 2014 |
|
RU2547475C1 |
| PROPELLER BLADE AND AEROFOIL PROFILE OF BLADE (VERSIONS) | 1996 |
|
RU2145293C1 |
| HELICOPTER MAIN ROTOR BLADE | 2006 |
|
RU2314230C1 |
