FIELD: transport.
SUBSTANCE: invention relates to helicopters. Helicopter rotor comprises propeller hub, several balanced and aligned blades with working airfoils that have leading and trailing edges arranged over the rotor diameter. Rotor blade bottom airfoils are furnished with thin 5-15 mm-high webs arranged in circle arc of diameter Di corresponding to ith web at Di varying from 0.2-1 diameter of the rotor Drot with pitch of 0.03-0.1 of Drot.
EFFECT: higher lift and fuel efficiency.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HELICOPTER | 2012 |
|
RU2494924C1 |
| VTOL AIRCRAFT | 2011 |
|
RU2476351C1 |
| METHOD OF CONTROL OVER AIRCRAFT OVERFLOW | 2011 |
|
RU2488522C2 |
| MULTI-PURPOSE MULTI-ROTOR HIGH-SPEED HELICOPTER | 2016 |
|
RU2629483C1 |
| METHOD OF REALIZATION OF MODE OF FLOW OVER LIFTING PROPELLER BLADES AND AERO-SPACE SYSTEM WITH VARIABLE-DIAMETER LIFTING PROPELLER AT SUPERSONIC FLOW OVER BLADES | 2004 |
|
RU2297949C2 |
| HELICOPTER ROTOR | 1999 |
|
RU2146637C1 |
| CONVERTIBLE VERTICAL TAKE-OFF AND LANDING AIRCRAFT (VERSIONS) | 2014 |
|
RU2550589C1 |
| UNMANNED HIGH-SPEED HELICOPTER-AIRPLANE | 2017 |
|
RU2653953C1 |
| HIGH-SPEED HELICOPTER-AMPHIBIOUS AIRCRAFT | 2017 |
|
RU2655249C1 |
| ROTOR "AIR WHEEL", GYROSTABILISED AIRCRAFT AND WIND-DRIVEN ELECTRIC PLANT USING ROTOR "AIR WHEEL", SURFACE/DECK DEVICES FOR THEIR START-UP | 2013 |
|
RU2538737C9 |
